Audio / Audio Engineering Magazine

Subject Index

May 1947 through December 1999

Click year from the following list to go to the necessary page:

1947, 1948 - page 2 1974 - page 53 1949 - page 4 1975 - page 55 1950 - page 6 1976 - page 57 1951 - page 8 1977 - page 59 1952 - page 10 1978 - page 61 1953 - page 12 1979 - page 63 1954 - page 14 1980 - page 65 1955 - page 16 1981 - page 67 1956 - page 18 1982 - page 69 1957 - page 20 1983 - page 71 1958 - page 22 1984 - page 73 1959 - page 24 1985 - page 75 1960 - page 26 1986 - page 77 1961 - page 28 1987 - page 79 1962 - page 30 1988 - page 81 1963 - page 32 1989 - page 83 1964 - page 34 1990 - page 86 1965 - page 36 1991 - page 89 1966 - page 37 1992 - page 91 1967 - page 39 1993 - page 94 1968 - page 41 1994 - page 97 1969 - page 43 1995 - page 100 1970 - page 45 1996 - page 104 1971 - page 47 1997 - page 107 1972 - page 49 1998 - page 111 1973 - page 51 1999 - page 115

This scanning has been made for scientific and educational purposes only not for profitable distribution.

© A.Vostokov, 2003 http://www.analogaudio.narod.ru SUBJECT INDEX

May 1947 through December 1948

AM TUNERS Coaxial Cable Capacitance; Sept. 48, 34. EXPANDERS, VOLUME Elements of Residence Radio Systems; II, DBM-Impedance Chart; Oct. 48, 36. Experimental, and Scratch Suppressor; С C. G. McProud, Oct. 48, 21. Exponential Current Change Chart; Oct. G. McProud, Aug. 47, 13. 47, 34. High — Fidelity—; Norman C. Pickering, Increase in Current and Energy due to In- ACOUSTICS Sept. 47, 7. Dynamic Symmetry and Acoustic Room sertion of Ideal Transformer Between Design; M. Rettinger, Oct. 47, 12. Source and Sink; July 47, 35. FILTERS, Simple RC, for Phonograph Amp- Musical Acoustics; Benjamin F. Tillson; I, Loss Due to Cable Pair Working Between lifiers; George L. Rogers, June 47, 28, June 47, 34; II, July 47, 25; III, Aug. Impedances of 5 Ohms; Sept. 47, 40. 47, 34; IV, Sept. 47, 30; V, Oct. 47, 25; Matching Pads with Minimum Loss; Aug. FM TUNERS VI. Nov. 47, 31; VII, Dec. 47, 23. 47, 38; Sept. 47, 34. Elements of Residence Radio Systems; I, Microseconds-DB Conversion; Mar. 48, 36. С G. McProud, Sept. 48, 22. AMPLIFIERS, AUDIO Negative Feedback Circuits; May 47, 35. Tuning Indicator for; L. B. Keim, Sept. 48, Cathode Phase Inverter Design; C. W. Va- Phase Shift and Attenuation of RC Coupling 32. dersen; I. June 47, 18; II, July 47, 20. Circuit; Apr. 48, 28-29. HEARING, Audiometry of Normal; C. J, Elements of Residence Radio Systems; C. Time Constant, Frequency, Attenuation of G. McProud, III, Noise Suppressor, Nov. Coupling Circuits; Nov. 47, 26-27. Lebel, Nov. 47, 23. 48, 20; IV, Main, Dec. 48, 22. Feedback Preamplifier for Magnetic Pick- AUDIOMETRY of Normal Hearing; C. J. HUM REDUCTION, Heater Supplies for; ups; Richard S. Burwen, Feb. 48, 18. LeBel, Nov. 47, 23. Frederick W. Smith, Aug. 48, 26. Flexible Decade Amplifier; Donald L. Clark, BELL, Ringing at its Fundamental Mode; IMPEDANCE Jan. 48, 13. General Purpose 6AS7G—; C. G. McProud, S. Young While, May 47, 17. Impedance Matching; O. L. Angevine, Jr., Dec. 47, 20. June 48, 24. BROADCASTING Graphical Characteristics of Cathode-Coupled Multiple Speaker Matching; John Winslow, Adapting Paper Tape Recorders for—; Rich- May 47, 30. Triode—; С J. LeBel, May 47, 40. ard S. O'Brien, June 47, 11. Heater Supplies for—Hum Reduction; INSTRUMENTS, MEASURING Frederick W. Smith, Aug. 48, 26. Applications of Magnetic Recording in Net- Comparative Vacuum-Tube Decibel Meter; High — Fidelity 30 — Watt—; Curtiss R. Schafer, work—; R. F. Bigwood, July 48, 31. Artificial Reverberation System; George W. J. H. Grieveson and A. M. Wiggins, May July 48, 21. 47, 15. High Quality, with Automatic Bias Control; Curran, May 48, 13. Design of a Continuously Variable Audio J. R. Edinger, June 47, 7. Audio Frequency Response Measurements Signal Generator; Brunton Bauer, Nov. High Quality, with 6AS7G; C. G. McProud, in—; A. E. Richmond, Jan. 48, 21. Audio Systems for—; J. D. Colvin, May 47, 48, 15. Mar. 48, 21. FM Calibrator for Disc Recording Heads; Improved Method of Locating Operating 11. Magnetic Tape Recorders in—; Howard A. Ralph A. Schlegel, I, May 47, 18; II, Point; Arthur Plowright, Sept. 47, 32. June 47, 20; III, July 47, 28. Loudness Control for Reproducing Systems; Chinn, May 47, 7. Preamplifier Noise in FM—; A. E. Rich- Gain Set, Practical; C. G. McProud, May David C. Bomberger, May 48, 11. 48, 20. Multi-Purpose—; Maurice P. Johnson, Aug. mond, July 47, 15. Planning a Studio Installation; J. D. Colvin, Impedance Bridge, Practical; John Winslow, 47, 20. I, July 47, 7; II, Aug. 47, 30; III, Sept. Aug. 48, 13. Noise Suppressor—; (See Index.) 47, 25. Transmission Measuring Set, CBS; Donald Performance and Use of Limiting—; W. W. Single Jacks for Broadcast Application; F. Maxwell, Apr. 48, 16. Dean and L. M. Leeds, July, 47, 17. Howard A. Chinn and Robert B. Monroe, Preamplifier Noise in FM Broadcasting; A. July 47, 12. INTERMODULATION E. Richmond, July 47, 15. Studio Control Room Design; Robert V. Intermodulation and Harmonic Distortion Simple Method of Determining Internal Re- Kinney, Dec. 48, 19. Measurements; J. Avins, Oct. 48, 17. sistance; Walther Richter, Oct. 48, 19. Studio Sound Reinforcement; Howard A. Simplified Intermodulation Measurement; Simple RC Filters for Phonograph—; George Chinn and Robert B. Monroe, Dec. 47, 5. C, G. McProud, May 47, 21. L. Rogers, June 47, 28. Studio Pickup Technique; H. M. Gurin, JACKS, Single, for Broadcast Application; AMPLIFIERS, CRYSTAL Feb. 48, 9. Howard A. Chinn and Robert H. Monroe, Characteristics of Amplifying Crystals; S. CALIBRATOR, FM, for Disc Recording Young White. Nov. 48. 18; Dec. 48, 19. July 47, 12. Heads; Ralph A. Schlegel, I, May 47, 18; Design of Amplifying Crystal Units; S. II. June 47, 20; III, July 47, 28. Young White, Sept. 48, 26. LISTENER PREFERENCES Experimental Data on—; S. Young White, DBM vs VU, Howard A. Chinn. Mar. Factors Influencing Studies of Audio Re- production Quality; N. M. Haynes, Oct. Oct. 48, 32. 48, 28. Experimental—; Winston Wells, July 48, 6. 47, 15. Experimental—; S. Young White, Aug. 48, DESIGN FUNDAMENTALS, Audio System; Notes on Wide-Range Reproduction; J. N. 28. Howard A. Chinn, Nov. 48, 11. A. Hawkins, Dec. 47, 19. Perfect vs Pleasing Reproduction; J. Moir, ATTENUATORS EQUALIZATION June 47, 24. Resistor Error in—; Herbert 1. Keroes. Oct. High — Frequency, for Magnetic Pickups; C. Psycho-Acoustical Aspects of Listener Pre- 48. 34. G. McProud, Sept. 47, 13. ference Tests; C. J. LeBel, Aug. 47, 9. Preequalization, for Phonograph Records, Report on Dr. Harry F. Olson's Tests; June AUDIO DESIGN NOTES Notes on; Apr. 48, 15. 47, 27. Attenuation vs Frequency. Single Constant- RC Circuits as Equalizers; Holger M. Dahl, k Section Low- or High-Pass Filter; May June 48, 16. LOUDSPEAKERS 48, 31. Transition Frequency Compensation; C. G. Dividing Networks, Design and Construc- Cathode Follower; June 47, 39. McProud, July 47, 10. tion; C. G. McProud, June 47, 15.

46 AUDIO ENGINEERING DECEMBER, 1948 Facts About Loudspeakers; O. L. Angevine, PHONOGRAPH PICKUPS SQUARE WAVE Analysis at Audio Fre- Jr. and R. S. Anderson, I, Feb. 48, 24; II, Mar. 48, 25. Electron-Tube Phonograph Pickup; Harry quencies; J. P. Van Duyne and M. E. Getting the Moat Out of a Reflex-Type F. Olson and J. Preston, Aug. 48, 17. Clark, May 47, 27. Speaker; Benjamin B. Drisko, July 48, New Phonograph Pickup Principle; Albert 24. E. Hayes, Jr., Oct. 47, 14. SYSTEMS High — Fidelity Loudspeaker of Unique De- sign; John K. Milliard, May 47, 33. PHONOGRAPH RECORDS Audio, for FM Broadcasting; J. D. Colvin, High-Quality Speaker Enclosure; Herbert May 47, 11. Columbia LP Microgroove Records; Aug. Broadcast and Public Address; Arthur W. G. Eidson, Jr., Oct. 48, 24. 48, 24. Horn-Type Loudspeakers; S. J. White, May Schneider, Aug. 47, 27. 48, 25. Making Phonograph Record Matrices; Har- Industrial Music; Samuel C. Milbourne, old Harris, July 48, 14. Multiple Speaker Matching; John Winslow, July 47, 31. Misconceptions about Record Wear; Nor- Loudness Control for Reproducing—; David May 47, 30. man C. Pickering, June 48, 11. Three-Way Speaker System; George A. C. Bomberger, May 48, 11. Polyethylene Phonograph Records; Otto J. Multi-Lingual Interpreting—; C. A. Tuthill, Douglas, June 48, 15. M. Smith, Sept. 48, 13. Two-way Speakers from Commercial Com- Sept. 47, 10. Problems of Sound Distribution; O. L. An- ponents; John Winslow, Nov. 48, 29. PHONOGRAPH REPRODUCTION Two-Way Speaker System; C. G. McProud, gevine, Jr. and R. S. Anderson. I, June I. Nov. 47, 18; II. Dec. 47, 17; III, Feb. Feedback Preamplifier for Magnetic Pick- 48, 18; II, Sept. 48, 16; III, Oct. 48, 48, 21. ups; Richard S. Burwen, Feb. 48, 18. 28. Vented Loudspeaker Enclosures; F. E. Pla- High — Frequency Equalization for Magnetic Residence Radio—, Elements of; C, G. Mc- ner and I. I. Boswell, May 48, 29. Pickups; C. G. McProud, Sept. 47, 13. Proud, I, Sept. 48, 22; II, Oct. 48, 21; Simple RC Filters for Phonograph Ampli- III, Nov. 48, 20; IV, Dec. 48, 22. MEASUREMENTS fiers; George L. Rogers, June 47, 28. Sound Reinforcement, in Broadcasting; Transition Frequency Compensation; C. G. Howard A. Chinn and Robert B. Monroe, A-F Response Measurements in Broadcasting; McProud, July 47, 10, Dec. 47, 5. A. E. Richmond, Jan. 48, 21, Sound Reinforcement, in Hollywood Bowl; Analyzing Sweep-Frequency Transcriptions; PREAMPLIFIERS M. Rettinger, Feb. 48, 15. Wayne R. Johnson. Oct. 47, 18. Wired Music, Design and Construction; Comparative Vacuum-Tube Decibel Meter; Feedback, for Magnetic Pickups; Richard Arthur R. O'Neil and Herbert G. Cole, S. Burwen, Feb. 48, 18. J. H. Grieveson and A, M. Wiggins, May July 48, 19. 47, 15. Noise, in FM Broadcasting; A. E. Richmond, Design of a Continuously Variable Audio July 47, 15. TELEPHONE RECORDING; E. W. Savage, Signal Generator; Brunton Bauer, Nov. 48, 15. RECORDERS, MAGNETIC I, Apr. 48, 20; II, July 48, 26; III, Dec. Determining Internal Resistance, Simple Adapting, for Broadcasting; Richard S. O' 48, 14. Method of; Walther Richter, Oct. 48, 19. Brien, June 47, 11. Decade Amplifier, Flexible; Donald L. Clark, in Broadcasting; Howard A. Chinn, May TUNING INDICATOR, for FM Receivers; Jan. 48, 13. 47, 7. L. B. Keim, Sept. 48, 32. Gain Set, Practical; C. G. McProud, May of Broadcast Quality; Harold Lindsay and 48, 20. Myron Stolaroff, Oct. 48, 13. Impedance Bridge, Practical; John Winslow, The Magnetophon; Don V. R. Drenner, Oct. ULTRASONICS Aug. 48, 13. 47, 7. Applications of, in Biology; S. Young White, Intermodulation and Harmonic Distortion Two-Channel, Two-Way-Drive; R. E. Zenner June 48, 30. Measurements; J. Avins, Oct. 48, 17. and R. B. Vaile, Jr., Apr. 48, 11. Coupling Energy to a Load; S. Young White, Intermodulation Measurement, Simplified; Mar. 48, 29. C. G. McProud, May 47, 21. RECORDING, DISC Economic Considerations in Industrial—; S. Square Wave Analysis at Audio Frequen- Young White, Jan. 48, 31. cies; J. P. Van Duyne and M. E. Clark, Embossed High — Fidelity Recording; Robert Elements of; S. Young White, Feb. 48, 28. May 47, 27. Wagner, May 47, 24. High Power—; S. Young White, July 47, Transmission Measuring Set, CBS; Donald Increased Volume Level in; Emory Cook, 23. F. Maxwell, Apr. 48, 16. Mar. 48, 17. —notes on Using; S. Young White, Apr. Noise Modulation in; Emory Cook, Dec. 47, 48, 26. MIXING NETWORKS, Design and Use 8. in Liquids; S. Young White, Sept. 47, 16. of; K. C. Morrical, Nov. 47, 11. Self-Monitoring Recorder Head; S. Young Opportunities in; S. Young White, June 47, White, Aug. 47, 32. 30. N.A.B. Recording Standards Meeting, Re- Speech Recording in the Classroom; Wil- in Solids; S. Young White, Oct. 47, 22. port; Oct. 47, 32. liam J. Temple, Aug. 48, 21. Testing by; S. Young While, Nov. 47, 28. Stylus Design of a New, for Lacquer Rec- Too Much Audio; S. Young White, May 47, NOISE, Preamplifier, in FM Broadcasting; ording Head; S. J. Begun, Dec. 48, 11. 31. Telephone Recording; I. W. Savage, I, Apr. A. E. Richmond, July 47, 15. 48, 20; II, July 48, 26; III, Dec. 48, 14. VACUUM TUBES NOISE SUPPRESSORS RECORDING, FILM Advantages of Space-Charge Grid Output Balanced Clipper Noise Suppressor; S. Les- Sound on Film; John A. Maurer, Nov. 48. Tubes; Oct. 47, 20. lie Price, Mar. 48, 13. 24. Graphical Characteristics of Cathode-Coupled Dynamic Noise Suppressor; John D. Good- Triodes; C. J. LeBel, May 47, 40. ell, Nov. 47, 7. Cathode Phase Inverter Design; C. W. Vad- Elements of Residence Radio Systems; III, RECORDING, MAGNETIC ersen, I, June 47, 18; II, July 47, 20. C. G. McProud, Nov. 48, 20. Applications in Network Broadcasting; R. Experimental Noise Suppressor, (Olson) ; F. Bigwood, July 48, 31. Charles D. Cole, Jan. 48, 9; Also schem- Bibliography of; N. M. Haynes, Oct. 47, 30. VOLTAGE STABILIZERS, AC; Leo L. atic, Dec. 47, 28. "Edispot", Spotting Device for Editing; Helterline, Jr., Sept. 47, 23. Experimental Volume Expander and Scratch Richard S. O'Brien, July 48, 11. Suppressor; C. G. McProud, Aug. 47, Factors Affecting Frequency Response and VOLUME EXPANDERS 13. Distortion in; J. S. Buyers, May 48. 18. General Purpose 6AS7G Amplifier; C. G. Magnetic Field Distribution of a Ring Rec- High Fidelity—; Norman C. Pickering, Sept. McProud, June 48, 24 ording Head; S. J. Begun, Dec. 48. 11. 47, 7. Simplified Dynamic Noise Suppressor; C. Review of the Present Status of Theory; Experimental, with Scratch Suppressor; C. G. McProud, Aug. 48, 22. W. W. Wetzel. I, Nov. 47, 14; II, Dec. G. McProud, Aug. 47, 13. 47, 12; III, Jan. 48, 26. ORGANS, Design of Electric; Winston WIRING STANDARDS, Suggested, for REVERBERATION System, Artificial; Wells, I, Aug. 47, 16; II, Sept. 47, 19; Motion Picture Recording Equipment; III, Apr. 48, 24; IV, Sept. 48, 28. George W. Curran, May 48, 13. Gino Rudolfi, Dec. 48 16.

AUDIO ENGINEERING DECEMBER, 1948 47 Audio Engineering—Vol. 33—1949

AM TUNERS CHARTS PHONOGRAPH PICKUPS Tubeless Hi-Fi Tuner; Aug, 32. Magnetic Tape or Wire Speed vs Re- New Polyphase Reproducer System; AUDIANA corded Wavelength; "Stylus," Feb, 34. Maximilian Weil, June, 13. Voltage Ratio vs Percentage Distortion; Recording Characteristics; C. G. Mc- H. P. Meisinger, Jan, 24. PHONOGRAPH RECORDS Proud, Dec, 20. COMPONENTS Characteristics of the New 45-rpm Rec- ords; "Stylus," Mar, 6. AMPLIFIERS Omnidirectional Microphones, An; John Compact 6AS7G Amplifier for Residence Test Record List; Sept, 14. Additional, K. Milliard, Apr, 20. Nov, 55. Audio Systems; C. G. McProud, I, Audio Transformer Applications; A. J. Mar, 17; II, Apr, 16. Avis, Nov, 20. PHONOGRAPH REPRODUCTION Below 50 Cycles; Saul J. White, Dec, 16. Cathode Follower as an Audio Power FILM RECORDINGS, Conversion Method Cartridge Adaptation, William J. Kessler, Amplifier; Howard T. Sterling, Dec, 12. to Increase Studio Facilities; Norman June, 31. Low-Power Cathode-Coupled Amplifier; T. Prisament and Thomas F. LoGiu- Construction of a Broadcast Station Raymond H. Bates, June, 30. dice, May, 15. Record Turntable; Herbert G. Eidson, Practical Cathode-Follower Audio Am- FILTERS Jr., May, 24. plifier; W. T. Gilson and Russell Pav- Continuously Variable Equalizing Pre- Crossover Filter for Disc Recording amplifier; David C. Bomberger, Apr, lat, May, 9. Heads ; H. E. Roys, June, 18. High-Power Triode Amplifier; Walter 14. Using the Reactance Chart for Filter Importance of Groove Fit in Lateral T. Selsted and Ross H. Snyder, Feb, 9. Design Problems; H. B. Davis, Dec, 12. Musician's Amplifier; David Sarser and Recordings; D. R. Andrews, July, 18. HEARING Melvin C. Sprinkle, Nov, 11. New Polyphase Reproducer System; New 50-watt Amplifier Circuit, Descrip- Problems in Audio Engineering, Lewis Maximilian Weil, June, 13. tion and Analysis; Frank H. McIntosh, S. Goodfriend: I, The Ear; May, 22, Recording Characteristics (Audiana); and Gordon J. Gow, Dec, 9. II, Effect of Sound on the Ear; June, C. G. McProud, Dec, 20. New Developments in Logarithmic Am- 15. III, Articulation; July, 20. Simplified Preamplifier Design; Howard plifiers; C. J. LeBel; Sept, 15. Speech Association Convention, Report T. Sterling, Nov, 16. New Portable Audio Amplifier for AM- on; Apr, 28. Versatile Phonograph Preamplifier; Paul W. St. Goerge and Benjamin B. Dris- FM-TV; W. W. Dean, July, 11. LANGUAGE of Audio, The; John D. ko, Mar, 14. Practical Aspects of Logarithmic Ampli- Goodell. July, 25. fiers; C. J. LeBel, Nov, 22. PROBLEMS in Audio Engineering; Lewis Tweeter Amplifier; David Hancock, LOUDNESS CONTROLS S. Goodfriend: Introduction, Mar, 23. Nov, 47. Construction Details of a Continuously I, The Ear; May, 22. II, Effect of AMPLIFIERS, PRE- Variable Loudness Control; J. W. Sound on the Ear, June, 15. III, Artic- Continuously Variable Equalizing Pre- Turner, Oct, 17. ulation, July, 20. IV, Sound Waves, amplifier; David C. Bomberger, Apr, 14. Full-Range Loudness Control; John Aug, 19. V, Sound Generators, Sept, New Developments in Preamplifiers; C. Winslow, Feb, 24. 18. VI, Musical Instruments and Hu- J. LeBel, June, 9. LOUD SPEAKERS man Speech, Oct, 23. Simplified Preamplifier Design; Howard Below 50 Cycles; Saul J. White, Dec, 16. PSYCHO—ACOUSTICS T. Sterling, Nov, 16. Corner Speaker Design. C. G. McProud; —Aspects of Higher Quality Reproduc- Versatile Phonograph Preamplifier; Paul I, Jan, 14. II, Feb, 13. tion; C. J. LeBel, Jan, 9. W. St. George and Benjamin B. Drisko, Corner Speaker Cabinet for 12-inch Mar, 14. Language of Audio, The; John D. Good- Cones; C. G. McProud, May, 14. ell, July, 25. BROADCASTING Ground Loudspeakers; David Scott, Oct, Audio Technique in Television Broad- 18. RECORDING, DISC casting; R. H. Tanner, Mar, 9. New 15-inch Duo-Cone Loudspeaker; Crossover Filter for Disc Recording Construction of a Broadcast Station Harry F. Olson, John Preston, and Heads; H. E. Roys, June, 18. Record Turntable ; Herbert G. Eidson, D. H. Cunningham, Oct, 20. Cutting Stylus Problem in Microgroove Jr., May, 24. MEASUREMENTS Recording; "Stylus," Apr, 26. Disc Recording for Broadcast Stations; Disc Recording for Broadcast Stations; W. J. Mahoney, Apr, 9. Audio Frequency Measurements; W. L. W. J. Mahoney, Apr, 9. Instructional Broadcast Studio, An; Black and H. H. Scott: I, Oct, 13; II, Importance of Groove Fit in Lateral Eugene F. Coriell, Nov, 14. Nov, 18. Recordings; D. R. Andrews, July, 18. New Portable Audio Amplifier for AM- Audio Sweep-Frequency Generator; G. Improved Lacquer Disc Recording Head; FM-TV; W. W. Dean, July, 11. A. Argabrite, May, 11. H. E. Roys, Feb, 21. Studio Control Room Design; Robert V. Developments in Cathode Followers; Lateral Feedback Disc Recorder (AES Kinney, Jan, 21. C. J. LeBel, Aug, 11. Section) ; G. R. Yenzer, Sept, 22. WMGM Master Control Equipment De- Developments in Logarithmic Amplifiers; Recording Characteristics (Audiana) ; sign; M. E. Gunn, Mar, 24. C. J. LeBel, Sept. 15. C. G. McProud, Dec, 20. Practical Aspects of Logarithmic Ampli- CATHODE COUPLING fiers ; C. J. LeBel, Nov. 22. RECORDING, MAGNETIC Low-Power Cathode-Coupled Amplifier; Electronic Audio Sweep-Frequency Gen- Head Alignment with Visible Magnetic Raymond H. Bates, June, 30. erator, A New; H. Toomin (AES sec- Tracks; B. F. Murphey and H. K. Cathode Follower as an Audio Power tion), Aug, 23. Smith, Jan, 12. Amplifier; Howard T. Sterling, Dec, 14. Measuring High - Resistance Values; Low-Cost Precision Magnetic Recorder Developments in Cathode Followers; Llewellyn Bates Keim, Oct, 36. for Professional Use; Myron J. Stol- C. J. LeBel. Aug, 11. Measuring Procedures for Magnetic Re- aroff, Aug, 17. Practical Cathode-Follower Audio Am- cording; Apr, 19. Magnetic Tape and Head Alignment plifier; W. E. Gilson and Russell Pav- Simplified Transmission Set; J. P. Smith, Nomenclature; N. M. Haynes, June, 22. lat, May, 9. Jr., and C. F. Scott. May, 19. Magnetic Tape Erasure by Permanent CONTROLS Test Record List; Sept, 14. Additional, Magnets ; Robert Herr, Aug, 14. Construction Details of a Continuously Nov, 55. Magnetic Tape or Wire Speed vs Re- Variable Loudness Control; J. W. Use of the Transmission Measuring Set; corded Wavelength (Chart); "Stylus," Turner, Oct, 17. George W. Curran, Feb, 26. Feb, 34. Flexible Dual Control System; Howard MICROPHONE, An Omnidirectional; J. Making Magnetic Recordings Visible T. Sterling, Feb. 11. (Photos) ; Apr. 23. Full-Range Loudness Control; John K. Milliard, Apr, 20. Mass Production Tape Recording; Apr, Winslow, Feb, 24. MOTION PICTURE Film Sound Repro- 21. Low-Loss Tone Control; James J. Faran, ducers ; H. D. Hastings and T. F. Lo- Measuring Procedures for Magnetic Re- Jr., June, 31. Giudice. Jan, 18. cording; Apr, 19.

46 AUDIO ENGINEERING • DECEMBER, 1949 SCHOOL Sound System, Modern; Ar- Measuring High Resistance Values; TRANSFORMER Applications, Audio; A. thur W. Schneider, Sept, 11. Llewellyn Bales Keim, Oct, 36. J. Avis, Nov, 20. Tubeless Hi-Fi Tuner; Aug, 32. TECHNI—BRIEFS Tweeter Amplifier; David Hancock, Nov, TELEVISION 47. Audio Technique in Television Broad- Cartridge Adaptation; William J. Kess- THEATRE, Auditory Component Control casting; R. H. Tanner, Mar, 9. ler, June, 31. for the Legitimate —; John H. Beau- Improved Audio Quality from Standard Low-Loss Tone Control; James J. Faran, TV Receiver; C. G. McProud, Oct, 28. Jr., June, 31. mont, July, 15, Low-Power Cathode-Coupled Amplifier; TONE CONTROLS Flexible Dual System; ULTRASONICS, Experimental; S. Young Raymond H. Bates, June, 30. Howard T. Sterling, Feb, 11. White: I, Mar, 20. II, Apr, 24.

AUDIO ENGINEERING • DECEMBER, 1949 47 SUBJECT INDEX Acoustics gestions; March, 19. Distortion and Noise Meter, Fixed-Filter —— of London's New Concert Hall; Cathode Follower Output Stage, The; Type; J. P. Smith; Nov., 22. Nov., 26. Robert M. Mitchell; Feb., 12. Filter Characteristics, —— of High- Impact of —— on Music, The; Robert Charts Pass; Werner E. Neuman, Feb., 14. H. Tanner; Nov., 21. Hygrometric Chart, A New; "Stylus"; Impedance "Jig", An; Allen W. Smith; Reverberation-Time Calculation, Simpli- April, 24. March, 18. fied; (Chart) Lewis S. Goodfriend; Reduction in Output Impedance Obtained Intermodulation ——, Simplified; John May, 20. with Negative Feedback; Willard F. M. van Beuren; Nov., 24. Audio Engineering Society Papers Meeker; Feb., 23. Intermodulation Analyzer for Audio Sys- Automatic Audio Gain Controls; J. L. Resonant Loudspeaker Enclosures; Bob tems, An; Roy S. Fine; July, 11. Hathaway; I Sept, 16; II Oct., 27. Hugh Smith; Dec., 22. Phase-Shift Method of Measuring Flut- Convention Program; Oct., 30. Reverberation-Time Calculation, Simpli- ter; Charles A. Hisserich and Arthur Diamond as a Phonograph Stylus Mate- fied; Lewis S. Goodfriend; May, 20. Davis; July, 15. rial, The; E. J. and M. V. Marcus; July, Wavelength for Air; Lewis S. Goodfriend; Simple Stroboscopes; L. B. Hedge; Aug., 25. Oct., 34. 22. Longitudinal Noise in Audio Circuits; Transient Testing of Loudspeakers; Mur- Components lan S. Corrington, Aug., 9. H. W. Augustadt and W. F. Kannen- Frequency Controlled Rotary Converters; berg; I Jan., 22; II Feb., 18. White Noise Generator for Audio Fre- Robert W. Carter; June, 18. quencies; J. M. Gottschalk, May, 16. Sound Reinforcing Systems; Arthur W. Optimum Use of Nickel Alloy Steels in Schneider; Nov., 27. White-Noise Testing Methods; Emory Low-level Transformers; L. W. How- Cook; March, 13. Amplifiers ard; Oct., 20. Automatic Audio Gain Controls; (AES) Construction Practice; C. G. McProud; Microphones J. L. Hathaway; I Sept., 16; II Oct., 27. I April, 26; II May, 19; III June, 26. Bantam Velocity —— , The; L. J. Ander- son and L. M. Wigington; Jan., 12. Cathode Follower Output Stage, The; Controls Robert M. Mitchell; Feb., 12. KB-3A High-Fidelity Noise-Cancelling Overcoming Fletcher-Munson Effects; ——, The; L. J. Anderson and L. M. Equipment Report: Rauland 1825 High- Nathan Grossman and Meyer Leifer; Fidelity Phono Amplifier; April, 25. Wigington; April, 16. April, 22. Unobtrusive Pressure ——; Harry F. Feedback ——, Considerations in the Continuously Variable Loudness —— ; Design of; Herbert J. Keroes; I May, Olson and John Preston; July, 18. E. E. Johnson; Dec., 18. Miller Effect, The. (Audiana); Lewis S. 14; II June, 17. Equipment Report: Rauland 1825 High- Goodfriend; July, 28. For Golden Ears Only; Joseph Marshall; Fidelity Phono Amplifier, April, 25. Mar., 13. Motion Pictures, Magnetic Recording in; Filter Characteristics, Measurement of M. Rettinger; I March, 9; II April, 18. Limiting ——, Performance and Opera- High-Pass; Werner E. Neuman, Feb., tion of a New; G. A. Singer; Nov., 18. 14. Negative Feedback Loudspeaker Damping as Function of Flewelling Audio System, The; E. T. Considerations in the Design of - Plate Resistance of Output Tube; Dono- Flewelling; Nov., 15. Amplifiers; Herbert I. Keroes; I May, van V. Geppert; Nov., 30. Hearing Aid Trends; F. Hardwick; June, 14; II June, 17. Reduction in Output Impedance Obtained Reduction in Output Impedance Obtained 23. with, (Chart); Willard F. Meeker; Feb., with Negative Feedback, (Chart); Wil- High Fidelity (Audiana); Lewis S. Good- lard F. Meeker; Feb., 23. friend; I Nov., 32; II Dec., 34. 23. "Williamson" Type —— Using 6A5's; Imagery for Describing Reproduced Networks, Crossover, for Unequal Voice- J. H. Beaumont; Oct., 24. Coil Impedances; Watson F. Walker; Sound; Vincent Salmon; I Aug., 14; II July, 14. Amplifiers, Pre- Sept, 14. Audio Input System for the Discrimi- Intermodulation Measurements, Simpli- Noise nating Listener, An; Wayne B. Denny; fied; John M. van Beuren; Nov., 24. Longitudinal —— in Audio Circuits (AES Paper); H. W. Augustadt and Jan., 9. Loudness Controls Equalized —— using Single-Stage W. F. Kannenberg; I Jan., 22; II Feb., Continuously Variable —— ; E. E. John- 18. Feedback; Lawrence Fleming; March, son; Dec., 18. 24. White-Noise Generator for Audio Fre- Overcoming Fletcher-Munson Effects; quencies; J. M. Gottschalk, May, 16. Phonograph Reproductions; (Audiana) Nathan Grossman and Meyer Leifer; C. G. McProud; I Feb., 24; II March, April, 22. White-Noise Testing Methods; Emory 20. Cook; March, 13. Analogies, Dynamical; (Audiana) Lewis Loudspeakers P. A. Systems, Aircraft; George H. War- S. Goodfriend; I Sept., 20; II Oct., 36. Adventure in Loudspeaker Design, An; fel; Jan., 19. Attenuator Calculator using Vector Slide Howard T. Souther; June, 14. Patent Infringement and the Home Ex- Rule. Rapid; A. E. Richmond; Dec., 19. Crossover Network for Unequal Voice- perimenter; Albert E. Hayes, Jr., June, Coil Impedances; Watson F. Walker; 28. Audiana July, 14. Phasemeter, An Improved Audio-Fre- Construction Practice; C. G. McProud; Design, Construction, and Adjustment of quency; O. E. Kruse and R. B. Watson ; friend; I Sept., 20; II Oct., 36. Reflexed Cabinets; David W. Worden; Feb., 9. Dynamical Analogies; Lewis S. Good- Dec., 15. Phonograph Records, The Best British of friend; I Sept., 20; II Oct., 26. —— for the Range from 5 to 20 kc, A; 1949; H. A. Hartley; Nov., 38. Equivalent Circuits; Lewis S. Good- B. H. Smith and W. T. Selsted; Jan, 16. Phonograph Reproduction friend; Aug., 20. New —— of Advanced Design, A; High Fidelity; Lewis S. Goodfriend; I Determining the Tracking Capabilities of Daniel J. Plach and Philip E. Williams; a Pickup; H. E. Roys; May, 11. Nov., 32; II Dec., 34. Oct., 22. Miller Effects, The; Lewis S. Goodfriend; —— (Audiana); C. O. McPround; I Feb., Resonant —— Enclosures, (Chart); Bob 24; II March, 20. July, 28. Hugh Smith; Dec., 22. Phonograph Reproduction; C. G. Mc- Diamond As a Phonograph Stylus Mate- Sensitivity, Directivity, and Linearity of rial; (AES Paper) E. J. and M. V. Proud; I Feb., 24; II March, 20. Direct Radiator —— ; Harry F. Olson; Recording Characteristics; C. G. Mc- Oct., 15. Marcus; July, 25. Proud; II, Jan., 20. Symmetrical Corner ——, A; W. E. Oil- Psycho Acoustics Audio in England; H. A. Hartley; I Jan., son and J. J. Andrea; Mar., 16. Controversial Idea from England; P. G. A. 42; II Nov., 36. Transient Testing of —— ; Murlan S. H. Voigt; Oct., 40. Audio Fair, The Corrington; Aug., 9. Recording, Disc Directory of Exhibitors; Oct., 32. Measurements Columbia Hot-Stylus Recording Tech- Review; Dec., 24. Audio Frequency Phasemeter, An Im- nique, The; William S. Bachman; June, Broadcasting proved ; O. E. Kruse and R. B. Watson; 11. Frequency-Controlled Rotary Converters; Feb., 9. Heated Stylus Recording Technique Robert W. Carter; June, 18. Determining the Tracking Capabilities of (AES); Leon A. Wortman; July, 24. Remote Installations; Elliott D. Full; A Pickup; H. E. Roys; May, 11. New Technique for Reducing Distortion Oct., 18. Determining Unknown Impedances in in Sound Recording; Caldwell P. Smith; Cabinets for Home Use, Readers' Mc- Transformers; L. H. Hippe; Dec., 21. April, 28.

62 AUDIO ENGINEERING • DECEMBER, 1950 Recording Characteristics (Audiana); C. —— in Motion Pictures; M. Rettinger; Speech Communication Conference at M. G. McProud; II Jan., 20. I March, 9; II April, 18. I. T.; Leo L. Beranek; July, 21. Recording and Fine-Groove Technique; New Technique for Reducing Distortion Stereophonic Reproduction; Tenny Lode; H. E. Hoys; Sept., 11. in Sound Recording; Caldwell P. Smith; Jan., 15. Recording, Magnetic April, 28. Transformers Art of Tape Recording. The; Joel Tall; I Performance plus Economy Tape Re- Determining Unknown Impedances in May, 13; II June, 20; III July, 22; IV corder; Jay Blakesley; Nov., 20. —— ; L. H. Hippe; Dec., 21. Aug., 16; V Sept., 15. Reverberation-Time Calculation, Simpli- Optimum Use of Nickel Alloy Steels in —— of Meter Data; R. E. Zenner; Feb., fied (Chart); Lewis S. Goodfriend; May, Low-Level ——; L. W. Howard; Oct., 16. 20. 20.

AUDIO ENGINEERING • DECEMBER, 1950 63 SUBJECT INDEX Acoustics New Broadcast Lightweight Pickup and J. A. Youngmark. Sept., 18. Acoustical Balance in Recording, Eddison Tone Arm, L. J. Anderson and C. R. Design Elements for Improved Bass Re- von Ottenfeld. Aug., 23. Johnson. Mar., 18. sponse in Loudspeaker Systems, How- Audio Engineering; Society Papers New Professional Tape Recorder, W. E. ard T. Souther. May, 16. AES Standard Playback Curve. Jan., 22. Stewart. Apr., 21. Direct-Radiator Loudspeaker Enclosures, Direct Radiator Loudspeaker Enclosures, Something New in Remote Amplifiers, Harry F. Olson. Nov., 34. Harry P. Olson. Nov., 34. Robert S. Houston. Nov., 18. Distributed Source Horn, Bob Hugh Effect of Hound Intensity Level on Judg- Studio-Controlled Remote Amplifier, Rob- Smith. Jan., 16. ment of "Tonal Range" and "Volume ert S. Houston. Sept., 24. Efficiency of Direct-Radiator Loud- Level," Stephen E. Stuntz. June, 17. Components speakers, Vincent Salmon. Aug., 13. Loudspeaker Damping. Albert Preisman. Harmonic Distortion in Iron-Core Trans- Exponential Baffles for Custom Installa- I, Mar., 22; II, Apr., 24. formers, R. H. Eastop and T. Williams. tions, George Augspurger. Nov., 24. The Measurement of Audio Volume, Apr., 18. How Far Can I Mismatch? Saul J. White. Howard A. Chinn. I, Sept., 26, II, Oct., The Measurement of Audio Volume, How- Jan., 15. 24. ard A. Chinn. I, Sept., 26; II, Oct., 24. Loudspeaker Damping, Albert Preisman. New Method of Measuring and Analyzing Survey of European Sound Apparatus, I, Mar., 22; II, Apr., 24. Inter-modulation, C. J. LeBel. July, 18. John K. Hilliard. Aug., 32. Loudspeaker Damping by the Use of In- verse Feedback, J. P. Wentworth. Dec., Toward a More Realistic Audio, Ross H. Controls Snyder. Aug., 24. 21. Simple Preamplifier and Tone-Control Loudspeaker Enclosures, Daniel J. Plach Amplifiers Unit, David H. O'Brien. Nov., 20. and Philip B. Williams. July, 12. Analysis of Split-load Phase Inverter, Tape Recorder Remote Control, Raymond More About Mismatching, Robert M. George Ellis Jones, Jr. Dec., 16. Lucia. Nov., 76. Mitchell. Oct., 16. 15-Watt Direct-Coupled Amplifier, Wil- Two-Tap Brass and Treble Compensated New Approach to Loudspeaker Damping, liam B. Fraser. Apr., 15. Volume Control, William O. Brooks. Warner Clements. Aug., 20. How Far Can I Mismatch? Saul J. White, Aug., 15. R-J Speaker Enclosure, Frank Robbins Jan., 15. Conventions and William Joseph. Dec., 17. The Interview Amplifier, C. G. McProud. AES Third Annual Convention Program. Dec., 13. Measurements Nov., 32. Intermodulation Testing, Pierce J. Aubry. More About Mismatching, Robert M. The Audio Fair Review. Dec., 24. Mitchell. Oct., 16. Dec., 22. Whodathunkit—AE Was Born in Cali- New Method of Measuring and Analyzing Musician's Amplifier Senior, David Sarser fornia. Aug., 17. and Melvin C. Sprinkle. Jan., 13. Intermodulation, C. J. LeBel. July, 18. New Approach to Loudspeaker Damping, Decibels Square-Wave Testing Simplified, Harold Warner Clements. Aug., 20. Adding Decibel-Expressed Quantities, Al- E. Bryan. Oct, 14. Positive Feedback for A-F Curve Shaping, fred L. DiMattia and Lloyd R. Jones. July, 15. Microphones L. P. Haner; I, Feb., 16; 11, Mar., 15. Home-Made Parabolic Microphone, Something New in Remote Amplifiers, Defense Effort George H. Floyd. Feb., 13. Robert S. Houston. Nov., 18. Audio in the Armed Forces, Lt. George Networks, Constant-Resistance Dividing, Space-Charge-Grid Amplifier, Melvin C. Marakas. Aug., 16. Bob Hugh Smith. Aug., 18. Sprinkle, Sept., 15. Ultrasonics in the Loran Trainer, Philip Phase Inverter, Analysis of Split-Load, Studio-Controlled Remote Amplifier, Rob- D. Stahl. I, May, 13; II, June, 14. George Ellis Jones, Jr. Dec., 16. ert S. Houston. Sept., 24. Distortion Phonograph Records Survey of Audio-Frequency Power-Am- Expressions for the Reduction of Distor- AES Standard Playback Curve. Jan., 22. plifier Circuits, Peter G. Sulzer. May, 15. tion and Output Impedance in Terms of Technique of Record Processing, Lewis S. An Ultra-Linear Amplifier, David Hafier db of Feedback, William J. Kessler and Goodfriend. Oct., 21. and Herbert I. Keroes. Nov., 15. Sydney E. Smith. Oct., 13. Versatile Amplifier from Junk-Box Parts, Harmonic Distortion in Iron-Core Trans- Phonograph Reproduction Curtiss R. Schafer. June, 22. formers. R. H. Eastop and T. Williams. AES Standard Playback Curve. Jan., 22. A-M Radio Apr., 18. Effective Frequency Rejection Circuit, R. B. Nevin. Feb., 20. Brief Review of Diode Detectors, Rudolph Equalizer, Continuously Variable, Went- worth D. Fling. Mar., 16. New Broadcast Lightweight Pickup and L. Kuehn. June, 11. Tone Arm, L. J. Anderson and C. R. Characteristics of AM Detectors, W. E. Equivalent Circuits to Simplify Feedback Babcock. July, 9. Design, Richard S. Burwen. Oct., 11. Johnson. Mar., 18. New Danish Playback Machine, Svend Receiver Bandwidth and its Measurement, Exhibits Howard T. Sterling and Alan Sobel. Anker-Rasmussen. Sept., 40. Audio Fair Review. Dec., 24. Phono Facts, Maximilian Wiel. June, 20. Jan., 18. I.R.E. Show Review. May, 19. Attenuators Feedback Preamplifiers Simple Attenuator Calculations, Jack D. Expressions for the Reduction of Distor- D.C. Heater Supply for Low-level Am- Gallagher. Oct., 20. tion and Output Impedance in Terms of plifiers, L. B. Hedge. June, 13. Terminal Impedance of an Attenuator, db of Feedback, William J Kessler and 15-Watt Direct-Coupled Amplifier, Wil- Herbert I. Keroes. I, Jan., 20; II, Feb., Sydney E. Smith. Oct., 13. liam B. Fraser. Apr., 15. 22. Positive Feedback for A-F Curve Shaping, Mixer and Preamplifier for the Recording Audio L. P. Haner. I, Feb., 16; II, Mar., 15. Enthusiast, G. H. Floyd. July, 16. Audio—Big Business, Leon Wortman. Loudspeaker Damping by the Use of In- Simple Preamplifier and Tone-Control Oct., 17. verse Feedback, J. P. Wentworth. Dec., Unit, David H. O'Brien. Nov., 20. Audio in England—The 1951 Picture, H. 21. Psychoacoustics A. Hartley. Oct., 40. Filters Effect of Sound Intensity Level on Judg- Audio Techniques Effective Frequency Rejection Circuit, R. ment of "Tonal Range" and "Volume Scratch Kilter with Continuously Variable B. Nevin. Feb., 20. Level," Stephen E. Stuntz. June, 17. Cut-Off Point, Charles J. Levin, Nov., Filter Design Simplified, Berthold Shef- Listening Room Design, Vern Yeich. Nov., 6. field. I, Mar., 13; II, May, 26. 28. Tape Recorder Remote Control, Raymond Scratch Filter with Continuously Variable The Measurement of Audio Volume, Lucia, Nov., 76. Cut-off Point, Charles J. Levin. Nov., 6. Howard A. Chinn. I, Sept., 26; II, Oct., Broadcasting Intermodulation 24. Broadcast. Audio Trends, W. E. Stewart. Intermodulation Testing, Pierce J. Aubry. Music and Mass Production, Jerome Good- Nov., 22. Dec., 22. man. Sept., 23. Continuously Variable Equalizer, Went- New Method of Measuring and Analyzing Toward a More Realistic Audio, Ross H. worth D. Fling. Mar., 16. Intermodulation, C. J. LeBel. July, 18. Snyder. Aug., 24. New AM-FM-TV Studio Consolette, P. W. Loudspeakers Radio Receivers Wildow and G. A. Singer. Sept., 20. Design Data for a Bass-Reflex Cabinet, Brief Review of Diode Detectors, Rudolph 54 AUDIO ENGINEERING • DECEMBER, 1951 L. Kuehn. June, 11. Continuously Variable Equalizer, Went- Morris. May, 24. Characteristics of AM Detectors, W. E. worth D. Fling. Mar., 16. New Danish Playback Machine, Svend Babcock. July, 9. The Interview Amplifier, C. G. McProud, Anker-Rasmussen. Sept., 40. Receiver Bandwidth and its Measurement, Dec., 13. Survey of European Sound Apparatus, Howard T. Sterling and Alan Sobel. Meet the Cinecruiser. Oct., 18. John K. Hilliard. Aug., 32, Jan., 18. New Professional Tape Recorder, W. E. Television Studio Acoustics, M. Rettinger. Recording, Disc Stewart. Apr., 21. Apr., 13. Acoustical Balance in Recording, Eddison Tape Recorder Remote Control, Raymond Lucia. Nov., 76. Test Equipment von Ottenfeld. Aug., 23. Versatile Amplifier from Junk-Box Parts, AES Standard Playback Curve. Jan., 22. Tape Editing and Duplicating Machine, Robert P. Ledbetter. Dec., 18. Curtiss R. Schafer. June, 22. Continuously Variable Equalizer, Went- Transformers, Harmonic Distortion in worth D. Fling. Mar., 16. Systems Iron-Core, R. H. Eastop and T. Wil- Recording, Magnetic How Far Can I Mismatch? Saul J. White. liams. Apr., 18. Acoustical Balance in Recording, Eddison Jan., 15. Ultrasonics in the Loran Trainer, Philip von Ottenfeld. Aug., 23. Industrial Survival Sound Systems, H. S. D. Stahl I, May, 13; II. June, 14.

AUDIO ENGINEERING • DECEMBER, 1951 55 SUBJECT INDEX

AES Convention Program, Oct., 58. Planning and Building a Radio Studio, En- Handbook of Sound Reproduction, Edgar M. AES Papers gene F. Coriell. I. June, 15; II, July, 19; Vil'chur. I, June, 18; II, July, 15; III, Aug., Magnetic Audio Amplifier Fundamentals, A. III, Aug., 22; IV, Sept., 30; V, Oct., 30. 20; IV, Sept., 38; V, Oct., 36; VI, Nov., M. Vincent. Sept., 42. Speech Clipper Aids Station Performance, R. 40; VII, Dec., 20. No Coded Signals, H. S. Morris. Oct., 40, S. Houston. Nov., 50. Home Music Systems The Problems of Low-Frequency Reproduc- A Twin-Channel Utility Amplifier, R. S. Audio in the Home, William C. Shrader. I. tion, Saul J. White. Apr., 20. Houston., Apr., 17. Jan., 18; II. Feb., 18; III, Mar., 47; IV, Wide-Angle Dispersion of High-Frequency Binaural Sound Apr., 24; V, June, 28; VI, July, 30; VII, Sound, Abraham B. Cohen. Dec., 24. Stereophonic Reproduction, James Moir. Oct., Aug., 24. Amplifiers 26. Be Your Own Custom-Builder, Jay Carver Commercial O-T-L Amplifier of Unique De- and Clif Howard. Mar., 24. sign, Prank II. Gilbert. Aug., 46. Cabinets and Enclosures Cathode Follower Audio Control System, Gilding the Lily, David Sarser and Melviu C. Cabinet Design for Hi-Fi Systems, Jeff Mar- Gladden B. Houck. Nov., 32, Sprinkle. July, 13. kell. May, 26. How to Use Magnetic Pickups, Ulric J. Integrated Line of Hi-Fi Equipment. Frank A Corner-Mounting Infinite Baffle. M. V. Childs. Mar., 35. H. Slaymaker. July, 26. Kiebert. Jr. Oct., 32. Music's the Thing, Irving Greene and Mel- The Maestro—a POWER Amplifier, David Design and Construction of Horn-Type Loud- vin C. Sprinkle, Jan., 20. Sarser and Melvin C. Sprinkle. Nov., 19. speakers, Way lie B. Denny. I, Mar., 22; On a Budget, Jay Carver and Clif Howard. Magnetic Audio Amplifier Fundamentals, II, Apr., 18. May, 24. (AES Paper), A. M. Vincent. Sept., 42. Design for Clean Bass, Edward J. Gately, Use Your Present Tuner, Ulric J. Childs. Neutralizing Hum and Regeneration. Arthur Jr. Oct., 29. Apr., 29. L. Hammond. May, 22. Design for Smooth Response. Vern Vetch. Legal Problems New Medium Cost Amplifier of Unusual Per- Jan., 15. formance, C. Leon.-ml Werner and Henry Horn-Loaded Bass Speaker, Earl R. Meiss- Trade Secrets and Their Protection, A. W. Berlin. Nov., 30. ner and L. K. Andrews. Jan., 22. Gray. Nov., 29. New Newcomb Line Features New Features, New Approach in Loudspeaker Enclosures, Loudness Controls Aug., 40. John E. Karlson. Sept., 26. A Proposed Solution to the Loudness Con- The Output-Transformer-Less Amplifier. Vic- Components trol Problem, John R. Schjelderup. Sept., 34. tor Brociner and Gerald Shirley. June, 21. How Good is an Audio Transformer, N. H. The Design of Compensated Volume Con- Speech Clipper Aids Station Performance, R. Crowhurst. Mar., 20. trols, Emerick Toth. I, Jan., 13; II, Feb., S. Houston. Nov., 50. Measuring up an Audio Transformer, N. H. 14. Ultra-Linear Operation of a Williamson Am- Crowhurst. Nov., 24. Loudspeakers plifier. David Hafler and Herbert I. Keroes. Some Pickup Design Considerations, P. G. A Corner-Mounting Infinite Baftle, M. V. June, 26. A. H. Voigt. Oct., 64, Kiebert, Jr. Oct., 32. Universal Amplifier for Magnetic Tape Re- Connsonata Organ Installation for the 1952 Design Considerations of Duplex Loudspeak- corder, C. G. McProud. I. May, 17; II. Presidential Nominating Conventions, Serge ers, Alexis Badmieff. Sept., 28. June, 24; III, July. 22. L. Krauss and Karl Kramer. Dec., 15. Design and Construction of Horn-Type Loud- Williamson-Type Amplifier Up-To-Date, M. Controls speakers, Wayne B. Denny. I, Mar., 22; V. Kiebert. Jr. Aug., 18. Cathode-Follower Audio Control System, II, Apr., 18. Amplifiers, Pre- Gladden B. Houck. Nov., 32. Design for Clean Bass, Edward J. Gately, Preamplifier for Critical Listening. M. V. The Design of Compensated Volume Con- Jr. Oct., 29. Kiebert, Jr. Sept., 21. trols, Emerick Toth. I. Jan., 13; II, Feb., Design for Smooth Response, Vern Yeich. Two Preamplifiers for Magnetic Pickups. 14, Jan., 15. George Ellis Jones, Jr. Jan., 24. A Proposed Solution to the Loudness Control Discussion of Dividing Networks, J. F. Wenl- Audio Fair, The Problem, John R. Schjelderup. Sept., 34. worth. Dec., 17. Exhibitor Directory. Nov., 54. Horn-Loaded Bass Speaker, Earl R. Meiss- The Audio Fair in Review. Dec., 26. Demonstration Techniques. Harrie K. Richard- ner and L. K. Andrews. Jan., 22. The Audio Fair in Chicago. July, 24. son. Oct., 84. Integrated Line of Hi-Fi Equipment, Frank Preview of 1952 Audio Fair. Oct., 58. Distortion, Intermodulation. Richard C. Hitch- H. Slaymaker. July, 26. Audio Techniques cock. Oct., 21. Loudspeaker Damping with Dynamic Nega- Broadcast Short-Cuts, R. S. Houston. Apr., Dividing Networks, Discussion of. J. F. Went- tive Feedback, Ulric J. Childs. Feb., 11. 34. worth. Dec., 17. New Approach in Loudspeaker Enclosures, Improved Cathode Bias Circuit Affording John E. Karlson. Sept., 26. Fixed Bias, John A. Mulvey. Mar., 63. Equalizers, Design Simplified. George O. Doug- New I The Super Tweeter, Ralph P. Glover las. Dec., 18. and Karl Kramer. Apr., 22. Book Reviews Equipment Report The Problems of Low-Frequency Reproduc- Electrical Measurements, Forest K. Harris. Altec A-333-A and A-433-A. Apr., 32. tion (AES Paper). Saul J. White, Apr., May, 44. Bell 2145A. Mar., 30. 20. Handbook of Engineering Fundamentals, Edit. Heathkit Williamson-Type Amplifier. May, 28. Speaker Treatment for Improved Bass. R. by Ovid W. Eshbach. Dec., 59. Exhibits Cameron Barritt. Dec., 23. Make Music Live, Irving Greene, James R. Audio Fair Exhibitor Directory. Nov., 54. Wide-Angle Dispersion of H-F Sound (AES Radcliffe, Robert Scharff. Feb., 39. Preview of 1952 Audio Fair. Oct., 58. Paper), Abraham B. Cohen. Dec., 24. Musical Engineering. Harry F. Olson. Aug., The Audio Fair in Review. Dec., 26. 9, The Audio Fair in Chicago. July. 24. Measurements Pianos, Pianists, and Sonics. G. A. Briggs. The I.R.E. Show Review. Apr., 26. A Distortionless Oscillator, Dunford A. Kelly. Apr., 8. London Letter—British National Radio Ex- Aug., 13, Radio and Television Receiver Circuitry and hibition, Leonard Carduner. Oct., 12. Intermodulation Distortion, Richard C. Hitch Operation, A. A. Chirardi and J. Richard NARTB Conference and Exhibit. May, 30. cock. Oct., 21. Johnson. Apr., 8. WESCON Exhibitors. Aug., 26. Linear-Scale A-F Wattmeter, C, G. McProud. The Recording and Reproduction of Sound, Fantasy Feb., 17. Oliver B. Read. May, 45. The Frudd Audio System, P. II. Frudd. Nov., Theory and Construction of a Harmonic Dis- Television Engineering. Donald Fink, Oct., 17. 12. tortion Meter. George Ellis Jones, Jr. Nov., Television Explained. W. F. Miller. Oct., 17. The Golden Ear. Don V. R. Drenner. Nov., 22. Television Principles, Robert B. Dome. Oct., 81. Microphone Technique — The Traveling Mike, 17. Feedback N. H. Crowhurst. Feb., 16. Time Bases, O. S. Puckle. May, 45. A Critical Feedback Analysis. Harold Klim- Musical Instruments — The Violin. Albert Preis- Ultrasonics, P. Vigoureux. Sept., 68. pel. Oct., 23. man. I. Sept., 24; II, Oct., 34; III. Nov., Vacuum-Tube Voltmeters. John F. Rider and It's Positive Feedback, Warner Clements. 36. Alfred W. Barber. Sept., 68. May, 20. Further Discussion on Positive Current Feed- Phonograph Records. The Best British of 1950- Broadcasting back. Ulric J. Childs. May, 21. 1951, H. A. Hartley. I, Mar., 28; II, Apr., Broadcast Audio Wiring Practices, W. Earl Loudspeaker Damping with Dynamic Nega- 50. Stewart. Aug., 16. tive Feedback, Ulric J. Childs. Feb., 11. Phonograph Reproduction Broadcast Short-Cuts, R. S. Houston. Apr., Filters. Record Improvement with H-F Cut-off; How to Use Magnetic Pickups, Ulric J. 34. Elliott W. Markow. Nov., 27. Childs. Mar., 35.

62 AUDIO ENGINEERING • DECEMBER, 1952 Phono Facts—1952. Maximilian Weil. June, Recording, Magnetic Sound Reproduction, Handbook of Edgar M. 30. Villchur. I, June, 18; II, July, 15; III, Aug., Pickup Tracking Error, Edgar M. Villchur. Azimuth Film Calibration, Michael Rettinger. 20; IV, Sept., 38; V, Oct., 36; VI. Nov., Mar., 17. Apr., 15. 40; VII, Dec., 20. Record Improvement with H.F. Cut-Off Fil- Limitations of Magnetic Tape, William S. Stereophonic Reproduction. James Moir, Oct., ters, Elliott W. Markow. Nov., 27. Latham. Sept., 19. 26. Some Pickup Design Considerations, P. C. Magnetic Tape in Southwest Monuments. T. A. H. Voigt, Oct., 64. B. Noble. Aug., 44. Television — The Two Types of Theatre Video. Two Preamplifiers for Magnetic Pickups, John W. Sims. Jan., 16. George Ellis Jones, Jr. Jan., 24. Tape Recorder Echo Effects, R. S. Houston. Transformers Oct., 52. How Good is an Audio Transformer, N. H. Radio Tuners Universal Amplifier for Magnetic Tape Re- Crowhurst. Mar., 20. Integrated Line of Hi-Fi Equipment. Frank corder, C. G. McProud. I, May, 17; II. Measuring up an Audio Transformer, N. H. H. Slaymaker. July, 26. June, 24; III, July, 22. Crowhurst. Nov. 24. Use Your Present Timer, Ulric J. Childs. Using Hearing Characteristics in Tape Edit- The Violin. Albert Preisman. I, Sept., 24; II, Apr., 29. ing. Joel Tall. May, 15. Oct., 34; III, Nov., 36.

AUDIO ENGINEERING • DECEMBER, 1952 63 SUBJECT INDEX

Allied Radio Corp., New Home for. Oct., Electrophysiological Technique, by Dickin- Leak TL-12 Amplifier, June, 42. 31. son. June, 63. Lorenz Speakers, Sept., 64. Fundamentals of Automatic Control Sys- Newcomb Classic 25 Amplifier, Feb., 38. Amplifiers tems, by Farrington. Mar. 10. Pilotone AA-901 Amplifier and AF-821A Distortion in Voltage Amplifiers, W. B. Fundamentals of Engineering Electronics, Tuner, Mar., 44. Bernard. Feb., 28. 2nd Ed., by Dow. Feb., 69. Pilotuner, AF-824. Aug., 32. Everyman's Amplifier, G. Leonard Werner Photoelectric Tubes, by Sommer. Oct., 16. Rauland Model 1826 with the Libretto. & Henry Berlin. Oct., 40. Radio Interference Suppression, by Ste- Oct., 35. Feedback from Output Transformer Pri- phens. Feb., 14. Sargent-Rayment SR-68 Tuner. July, 32. mary, AUDIOLOGY. May, 14. Radiotron Designers Handbook, 4th Ed., Sonocraft FM Tuner. Jan., 56. Feedback from Output Transformer Sec- edited by Smith. Sept. 12. TapeMaster HF-500 Recorder. Oct., 34. ondary, AUDIOLOGY. July, 14. Sound Reproduction, 3rd Ed., by Briggs. UTC W-20 "Williamson" Kit. May, 42. Hum Reduction in Amplifier Development, June, 63. Feedback AUDIOLOGY. June, 14. Thermionic Vacuum Tubes and Their Applications, by Aldous. Nov., 49. Feedback and Loudspeaker Damping, John Improvements on the Universal Tape Re- A. Mulvey. Apr., 34. corder Amplifier. G. G. McProud. Sept., Broadcasting Feedback—Degenerative and Regenerative, 44. Rudolph L. Kuehn. Apr., 23. Moderately Priced Amplifier Introduces Auxiliary or Emergency Broadcast Con- Feedback from Output Transformer Pri- Loudness Control Selector, L. H. Bogen trol Room, Harold Reed. Mar., 26. mary, AUDIOLOGY. May, 14. & Alfred M. Zuckerman. May, 31. Auxiliary Mixer for TV Studios, George Feedback from Output Transformer Sec- Optimum Loading for Power Amplifiers, A. Singer. Apr., 26. ondary, AUDIOLOGY. July, 14. AUDIOLOGY. Aug., 12. Binaural Radio Broadcasting, Harold T. New Approach to Negative Feedback De- Pass Band of a Transformer Coupled Am- Sherman. Jan., 14. sign, N. H. Crowhurst. May, 26. plifier, Joseph F. Sodaro. June, 24. Complete Remote Control of an Ampex Stability Testing of Feedback Amplifiers, Precision Phase Splitting, AUDIOLOGY. 300, Richard F. Blinzler. Oct., 23. AUDIOLOGY. Sept. 14. Nov., 12. Simplified Program Switching Panel, Har- R-C Coupled Amplifier Charts, AUDI- old Reed. Feb., 25. Handbook of Sound Reproduction, Edgar OLOGY. Oct., 12. M. Villchur. Chap. 8, Jan., 30; Chap. Simplified Push-Pull Theory. Julius Postal. Cabinets 9, Feb., 30; Chap. 10, Pt. 1, Mar., 32; Pt. I, May, 19; II, June, 21. Tired Business Man's Radio Cabinet and 2, Apr., 29; Chap. 11, Pt. 1, May., 34; Stability Testing of Feedback Amplifiers, Speaker, C, C. Fraser. Dec., 26. Pt. 2, June, 30; Chap. 12. Pt. 1, July, AUDIOLOGY. Sept., 14. Vibration Reduction in Loudspeaker En- 26; Pt. 2, Aug., 26; Pt. 3, Sept. 36; Three-Channel Tone-Control Amplifier, closures, Gladden B. Houck. Dec., 24. Chap. 13; Oct., 42; Chap. 14, Nov., 25; Joseph F. Dundovic. Apr., 28. Chap. 15, Pt. 1, Dec., 34. White Powrtron Amplifier, Stanley White. Components Hearing Aids Nov., 32. Audio Transformer Design, N. H. Crow- Zero-Impedance Output Stage, R. G. Design Considerations, AUDIOLOGY. Dec., Anthes. Jan., 21. hurst. Feb., 26. Making the Best of an Audio Transformer, 12. Sonotone Transistorized Hearing Aid, Amplifiers, Pre- N. H. Crowhurst. Jan., 40. Output Transformer Design Considera- Harry A. Pearson. Aug., 19. High-Fidelity Phonograph Preamplifier tions, AUDIOLOGY. Apr., 14. Hum Reduction in Amplifier Development, Design, R. H. Brown. Apr., 19. AUDIOLOGY. June, 14, Construction Practice Amplifier Design Loudspeakers Bread-Pan Layout, L. B. Hedge. Aug., 24. Circle Diagrams for R-C Coupled Am- 75th Anniversary of First Dynamic Making a "Front End" Handsome, Wil- Speaker, Murlan S. Corrington. Feb. 12. plifiers, Olan E. Kruse. Feb., 22. liam H. Burke, Nov., 20. Feedback—Degenerative and Regenera- Basic Design of Constant-Resistance Cross- tive, Rudolph L. Kuehn. Apr. 23. Controls, Tone overs. N. H. Crowhurst. Oct., 21. New Approach to Negative Feedback De- Coupled Loudspeakers, Charles W. Harri- sign, N. H. Crowhurst. May, 26. Flexible Tone-Control Circuit, Basil T. son, Jr. May, 21. ASCO Unveils Flexible Sound Display Barber. Sept., 29. Feedback and Loudspeaker Damping, John Room. Feb., 36. Selection of Tone-Control Parameters, Ed- A. Mulvey. Apr., 34. Audio for Leisure Hours. July, 25. gar M. Villchur. Mar., 22. Great Loudspeaker Mystery, H. A. Hart- Audio in the Year 1693, Allen H. Fry. Three-Channel Tone-Control Amplifier, ley. Jan., 33. Mar., 25. Joseph F. Dundovic. Apr., 28. Horn Enclosure for Custom Installations, Three-Element Bass Control, Glen South- Arnold J. Gassan. Sept., 22. AE Goes to London and Paris. June, 38. worth. Oct., 24. Make Your Own Woofer, Gurtiss R. Scha- fer. Nov., 19. Audio Fair, The Controls, Volume Practical Aspects of the R-J Speaker En- Audio Fair—Los Angeles. Jan. 38. Note on Volume Controls, Charles P. closure, William Joseph & Frank Rob- Audio Fair and AES Convention Reach Bocgli. Apr., 40. bins. Jan., 19. New Heights. Nov., 29. Theatre Sound in a Small Package, Thomas Audio Fair Review. Dec., 28. Crossover Networks R. Hughes. I, Feb., 19; II, Mar., 30; Basic Design of Constant Resistance Cross- III, Apr., 24. Awards overs, N. H. Crowhurst. Oct. 21. Vibration Reduction in Loudspeaker En- closures, Gladden B. Houck. Dec., 24. Audio Engineering Awards. May, 24. Review of the Audio Engineering Awards, Dictating Machine—A Specialized Record- Measurements June, 28. ing System. Richard M. Somers. I, Aug., 22; II, Sept., 24. New Volume Visualizer, Norman Prisa- ment. Sept., 30. Book Reviews Electronic Music Twin-Triple Resistance Decader and Applications of the Electronic Valve, by Bridge, L. B. Keim. Sept., 34. Organ for One-Finger Artists, Richard H. Wide-Range R-C Oscillator, Lewis S. Dammers, Haantjes, Otte, and Van Dorf. Sept., 19. Suchtelen. Feb., 14. Goodfriend. Feb., 21. Basic Electronic Test Instruments, by Equipment Reports Turner. Oct., 16. Musical Instruments Circuit Theory of Electron Devices, by Bogen R701 AM-FM Tuner, Sept., 42. The Piano, Albert Preisman. I, Oct., 26; Boine. Dec., 6. Collaro Changer, Apr., 42. II, Nov., 22. Electrical Engineering—Theory and Prac- Concertone 1501-S Tape Recorder, July. Organ for One-Finger Artists, Richard H. tice, by Erickson and Bryant. Feb., 69. 30. Dorf. Sept., 19.

AUDIO ENGINEERING • DECEMBER, 1953 73 Patents Case for Music, John H. Thomson. Sept., Binaural Public Address, Charles F. Adams. "First Inventor" Under the 1952 Patent 32. Feb. 24. Law, Albert Woodruff Gray. Mar., 40. Great Loudspeaker Mystery, H. A. Hart- Binaural Radio Broadcasting, Harold T. Patentable Features in Radio Inventions, ley. Jan., 33. Sherman. Jan., 14. Albert Woodruff Gray. June, 36. High Futility—An Essay on Scale Distor- Great Mystery of Dannemora Dungeon, The Protection of Ideas, Albert Woodruff tion, Joe L. Dickey. Apr., 21. Emory Cook. Oct. 50. Gray. Jan., 36. Great Mystery of Dannemora Dungeon, Two-Channel Conversion for AM-FM Re- Emory Cook. Oct., 50. ceivers, C. G. McProud. Jan., 25. Phase Splitters Precision Phase Splitting, AUDIOLOGY. Public Address Systems System Design Nov., 12. Binaural Public Address, Charles F. Adams. It Can Be Attractive, C. G. McProud. Phonograph Equipment Feb., 24. Nov., 30. Canadian House of Commons Sound In- Effect of Load Impedance on the Fre- Matched Line of Hi-Fi Sound Equipment, quency Response of Magnetic Pickups, stallation by Tannoy. Apr., 38. Harry F. Olson. Aug., 29. Norman C. Pickering. Mar., 19. Recording, Disc Simplified Program Switching Panel, Har- Lateral Mechanical Impedance of Pickups, old Reed. Feb., 25. J. G. Woodward and J. B. Halter. I, Automatic Disc Recorder, Curtiss R. Scha- Tools for Building Temples of Tone. Oct., fer. Dec., 21. 54. June, 19; II, July, 23. Evolution of a Recording Characteristic, New Wide-Range Phonograph Cartridge, R. C. Moyer, July, 19. Tone Controls John F. Wood, Dec., 22. Flexible Single Recording and Dubbing Phonograph Records, The Best British, of Channel, Hal Magargle. Jan., 28. Flexible Tone-Control Circuit, Basil T. 1952, H. A. Hartley. Apr., 44. Barber. Sept., 29. Recording, Magnetic Selection of Tone-Control Parameters, Ed- Phonograph Reproduction gar M. Villchur. Mar., 22. The Columbia "360," Peter C. Goldmark. Complete Remote Control of an Ampex 300, Richard F. Blinzler. Oct., 23. Three-Channel Tone-Control Amplifier, Mar., 28. Joseph F. Dundovic. Apr., 28. Columbia "XD" Speaker System, Peter C. Correction of Frequency Response Varia- tions Caused by Magnetic Head Wear, Three-Element Bass Control, Glen South- Goldmark. Oct., 36. worth. Oct., 24. Effect of Load Impedance on the Fre- Kurt Singer & M. Rettinger. July, 29. quency Response of Magnetic Pickups, Flexible Single Recording and Dubbing Transformers Norman C. Pickering. Mar., 19. Channel, Hal Magargle. Jan., 28. Improvements on the Universal Tape Re- Audio Transformer Design, N. H. Crow- High Fidelity Phonograph Preamplifier hurst. Feb., 26. Design, R. H. Brown. Apr., 19. corder Amplifier, C. G. McProud. Sept., 44. Making the Best of an Audio Transformer, Photography Magnetic Transfer of Stainless Steel Wire, N. H. Crowhurst. Jan., 40. Audio Photographers Check List, Eugene Samuel Storchheim. Dec., 19. Output Transformer Design Considera- F. Coriell. Mar. 14. Multiple-Track Magnetic Heads, Kurt tions, AUDIOLOGY. Apr., 14. Singer & M. Rettinger. Aug., 34. Power Supplies Tubes D. C. Pack for Heaters, and Bias, Allan M. Top Tape Recording Performance, Harold Ferres. Sept., 33. Reed. June, 26. Power Tube Figure of Merit, Warren G. Bender. Mar., 21. Psychoacoustics Stereophonic Sound Binaural or Stereophonic? R. J. Tinkham. Binaural or Stereophonic? R. J. Tinkham. Volume Controls, A Note on, Charles P. Jan., 22. Jan., 22. Boegli. Apr., 40.

74 AUDIO ENGINEERING • DECEMBER, 1953 SUBJECT INDEX

Accurate design of phono equalizers; Better audio specs needed; Nathan Gross- EQUALIZERS Charles F. Hempstead and Hamilton man. Sept. 36. Accurate design of phono equalizer; Barhydt. I, Aug, 22; II, Sept, 24. BOOK REVIEWS Charles F. Hempstead and Hamilton ACOUSTICS Data and Circuits of Modern Receiving Barhydt. I, Aug, 22; II, Sept, 24. Sound diffusion in rooms; M. Rettinger. and Amplifying Valves, Supplement Simulated resonant circuits; Glen Aug, 19. 2; N. S. Markus and J. Otte. Feb, 14. Southworth. Nov, 20. Adventures with a bass reflex; Milton S. Electronic Musical Instrument Manual, EQUIPMENT REPORTS Snitzer. Jan, 26. The; Alan Douglas. Aug, 78. Acoustical Quad II; May, 28. Allen organ, The; Richard H. Dorf. July, Electronic Organs; Robert L. Eby. Feb, Ampex 600 tape recorder; July, 38. 20. 65. Ampex 620 amplifier-loudspeaker; Dec, AMPLIFIERS Harmonics, Sidebands, and Transients 40. Bandwidth; AUDIOLOGY, Feb, 12. in Communication Engineering; C. Bogen DB15G amplifier and R640 tuner; Control unit for the Williamson, A; Louis Cuccia. Nov, 62. Aug, 59. Charles R. Miller. Sept, 19. Low-Frequency Amplification; N. A. J. Brociner UL-1 amplifier, A-100 pream- Dual-channel control amplifier for Voorhoeve. Mar, 58. plifier, CA-2 control unit; Nov, 42. stereophonic systems; Wayne B. Principles of Transistor Circuits; Rich- Crestwood 401 tape recorder and 402 Denny. May, 17. ard F. Shea. Jan, 59. amplifier; Oct, 50. Juke Box goes hi-fi, The; C. G. Mc- Radio Data Charts; R. T. Beatty. Mar, Fairchild 215 series phonograph pick- Proud. Dec, 33. 58. ups and 280 series pickup arms; Oct, Medium power tetrode amplifier with Vacuum Tube Oscillators; William A. 52. stabilized screen supply; Cullen H. Edson. Feb, 14. Fisher 50-F filter; May, 30. Macpherson. Feb, 30. BROADCASTING Freed-Eisemann P-717 receiver; May, New Golden Ear amplifier; Joseph Mar- Broadcast consolette for the announcer; 30. shall. I, Jan, 17; II, Feb, 22. Leo F. Goeller, Jr. Jane, 19. Garrard RC-90 record changer; June, 38. Low distortion tone-control amplifier; Simplexing a standard amplifier; H. S. General Electric line, The; June, 34. W. B. Bernard. Aug, 17. Houston. Nov, 36. Harman-Kardon A-100 AM-FM tuner; New amplifier has bridge-circuit out- Building your own hi-fi furniture; Irving May, 30. put; D. J. Tomcik and A. M. Wiggins, Greene and James R. Radcliffe. I, May Laboratory for Electronic Engineering Nov, 17. 24; II, June, 28; III, July, 32. loudspeaker; Oct, 54. Simple high-quality phono amplifier; Chart of resistor values for L-pads; H. Leak TL/10 amplifier; July, 34. R. D. Middlebrook. Aug, 20. Peter Meisinger. Nov, 25, Miracord XA-100 Magic-Wand record Simplexing a standard amplifier; R. S. Cinerama Awards. Nov, 34. changer; Aug, 60. Houston. Nov, 36. Concrete Monster, The; James Ferguson. National Criterion AM-FM tuner, Hori- Some experiments with miniature power July, 17. zon 20 amplifier, Horizon 5 preampli- tubes; Geoffrey H. Grey. Apr, 19. Conductors and record buyers; Rudo S. fier; Sept, 46. Transformerless 25-watt amplifier for Globus. Feb, 32. Pilot FM-607 Pilotuner; Mar, 32. conventional loudspeakers; D. P. Control unit for the Williamson; Charles Pilot AF-860 AM-FM tuner; Oct, 54. Dickie, Jr. and A. Macovski. June, 22. R. Miller. Sept. 19. Pilot AA-903 amplifier; Mar, 32. Transient response of audio amplifiers; Corner horn designed for the small room; Radio Craftsmen C-350 preamplifier- AUDIOLOGY. Mar, 10. Wayne B. Denny. Feb, 21. control unit; Dec, 39. Transistor phono preamp for magnetic Damping of loudspeaker cabinet panels; Radio Craftsmen C-500 amplifier; Apr, pickups; Basil T. Barber. Oct, 38. M. Rettinger. Sept, 34. 32. Transistor remote amplifier, A; Paul Damping factor control, Variable; Charles Radio Craftsmen C-800 tuner; Apr, 32. Penfield, Jr. Sept, 26. A. Wilkins. Sept, 31. Rauland 1811 amplifier; Nov, 46. Variable damping factor control; De-emphasis networks in FM tuners; Ronette TO-284-P crystal cartridge; Charles A. Wilkins. Sept, 31. Herman Burstein. June, 21. Dec, 42. At Home with AUDIO, Lewis C. Stone. Design of a continuously variable low- Shure 333 cardioid microphone; Nov, I, Apr, 28; II, May, 22; III, June, 24; pass filter using feedback techniques; 40. IV, July, 28; V, Dec, 26. Basil T. Barber. Mar, 26. University "Companion" loudspeaker; ATTENUATORS Design of a professional tape recorder; July, 36. Chart of resistor values for L-pads, H. William F. Boylan and William E. Gold- UTC linear standard amplifier, model Peter Meisinger. Nov, 25. standt. Jan, 20. MLF; June, 38. AUDIO AUDITIES, Saul J. White. I, May, Dual-channel control amplifier for stereo- V-M tape recorder, model 700; Dec, 40. 55; II, June, 27; III, July, 12; IV, Aug, phonic systems; Wayne B. Denny. May, Wharfedale R-J speaker; Nov, 42. 74. 17. FANTASY AND FICTION AUDIOLOGY, W. R. Ayres ELECTRONIC MUSICAL Hi-Fi Manship at the Fair; Charles R. Amplifier bandwidth. Feb, 12. INSTRUMENTS Sinclair. Oct, 29. Feedback from output transformer ter- Allan organ, The; Richard H. Dorf. From High Fidelity to Music; Zygmunt tiary. Jan. 10. July, 20. Hof. Sept, 30. Transient response of audio amplifiers, Employer's rights in employee's inven- Theory and practice of Hi-Fi-Manship; Mar, 10. tion; Albert Woodruff Gray. Oct, 37. Charles R. Sinclair. May, 20.

AUDIO • DECEMBER, 1954 65 FEEDBACK Corner horn designed for the small Planning your home music installation; —— from output transformer ter- room; Wayne B. Denny. Feb, 21. Irving Greene and James R. Radcliffe. tiary; AUDIOLOGY. Jan. 10. Damping of loudspeaker cabinet pan- I, Mar, 22; II, Apr, 22. —— channel separators; N. H. Crow- els; M. Rettinger. Sept, 34. Power Supply, hum, noise, Handbook of Sound Reproduction, Chap. 15, part 2; hurst. Oct, 32. Horn, The; Edward V. Ketcham, Jr. Dec, 23. Edgar M. Villchur. Jan, 27. Design of a continuously variable low- Improving loudspeaker performance; PREAMPLIFIERS pass filter using feedback techniques; David B. Weems. Sept, 22. New Golden Ear amplifier; Joseph Mar- Basil T. Barber. Mar, 26. Juke box goes hi-fi, The; C. G. Mc- shall. Feb, 22. FILTERS Proud. Dec, 33. Preamp with presence; C. G. McProud. Design of a continuously variable low- Laboratory standard loudspeaker sys- Jan, 23. pass filter using feedback techniques; tem; Daniel J. Plach and Philip B. Notes on the "preamp with presence"; Basil T. Barber. Mar, 26. Williams. Oct, 34. C. G. McProud. May, 52. FM TUNERS Loudspeakers and Enclosures (a sec- Transistor phono preamp for magnetic De-emphasis networks in ——; Her- tion) ; Aug, 27. pickups; Basil T. Barber. Oct, 38. man Burstein. June, 21. Nomograph for reflex loudspeaker en- RECORDING, MAGNETIC Selecting and improving ——; Charles closures; Joseph F. Sodaro. May, 31. Problems involved in magnetic tape re- Erwin Cohn. Sept, 42. My philosophy on the loudspeaker mys- cording; Norman E. Gibbs. Mar, 19. tery; Leung Cho Yuk. Jan, 58. Frequency and transient response in Design of a professional tape recorder; Revolutionary loudspeaker and enclo- William F. Boylan and William E. audio equipment; Charles P. Boegli. sure; Edgar M. Villchur. Oct, 25, Goldstandt. Jan, 20. Feb, 19. Low distortion tone-control amplifier; RECORDS From high fidelity to music; Zygmunt W. B. Bernard. Aug, 17. Conductors and record buyers; Rudo Hof. Sept, 30. MEASUREMENTS S. Globus. Feb, 32. HANDBOOK OF SOUND REPRODUC- Techniques of microphone calibration; Record revolution and music, The; TION, Edgar M. Villchur. Alexis Badmaieff. Dec, 30. Rudo S. Globus. Mar, 29. Pickups and tone arms, Chap. 16; Feb, Testing and measurement, Handbook Right ear for music, The; Rudo S. 33. of Sound Reproduction, Chap. 18; Globus. Apr, 25. Power Supply, Hum, Noise, Chap. 15, Edgar M. Villchur. Apr, 26. Security sound system; Alan P. Chesney. part 2; Jan, 27. Transient and frequency response in July, 24. System assembly, Chap. 17; Mar, 30. audio equipment; Charles P. Boegli. Selecting and improving FM receivers; Testing and measurement, Chap. 18; Feb, 19. Charles Erwin Cohn. Sept, 42. Apr, 26. White sound testing; Richard C. Hitch- Simple high-quality phono amplifier, A; Hi-Fi-Manship at the Fair; Charles R. cock, Oct, 41. R. D. Middlebrook. Aug, 20. Sinclair. Oct, 29. Medium power tetrode amplifier with sta- Simplexing a standard amplifier; R. S. Hi-Fi sets of yesteryear; Charles N. Fail- bilized screen supply; Cullen H. Mc- Houston. Nov, 36. Simulated resonant circuits; Glen South- lier. Jr. Feb, 28. Pherson. Feb, 30. worth. Nov, 20. HOME MUSIC SYSTEMS Microphone, Techniques of —— calibra- tion; Alexis Badmaieff. Dec, 30. Some experiments with miniature power At Home with AUDIO; Lewis C. Stone. tubes; Geoffrey H. Grey. Apr, 19. Motor rumble reduction in wide-range I, Apr, 28; II, May, 22; III, June 24; Sound diffusion in rooms; M. Rettinger. phonographs; John R. Cater. Nov, 32. IV, July 28; V, Dec, 26. Aug, 19. NETWORKS Building your own hi-fi furniture. STEREOPHONIC REPRODUCTION Irving Greene and James R. Rad- De-emphasis —— in FM tuners; Her- Dual-channel control amplifier for ——; cliffe. I, May, 24; II, June, 28; III, man Burstein. June, 21. Wayne B. Denny. May, 17. July, 32. Feedback channel separators; N. H. Stereophonic listener tests; James Cun- Phones for fidelity; Peter W. Tappan, Crowhurst. Oct, 32. ningham and Robert Oakes Jordan. Nov, 22. New amplifier has bridge-circuit output; Aug, 56. Place your music decoratively; Irving D. J. Tomcik and A. M. Wiggins. Nov, Stereophonic nomenclature; N. M. Greene. Feb, 24. 17. Haynes. Jan, 19. Planning your home music installa- New Golden Ear amplifier, The; Joseph Stereophonic reproduction; R. Ver- meulen. Apr, 21. tion; Irving Greene and James R. Marshall. I, Jan, 17; II, Feb, 22. System assembly, Handbook of Sound Radcliffe. I, Mar, 22; II, Apr, 22. Nomograph for reflex loudspeaker enclo- Reproduction, Chap. 17; Edgar M. Vill- Horn, The; Edward V. Ketcham, Jr. Dec, sures; Joseph F. Sodaro. May, 31. Notes on "preamp with presence"; C. G. chur. May, 30. 23. Techniques of microphone calibration; Hum and Noise, Chap. 15, part 2, Hand- McProud. May, 52. Alexis Badmaieff. Dec, 30. book of Sound Reproduction; Edgar M. Phones for fidelity; Peter W. Tappan. Theory and practice of Hi-Fi-Manship, Villchur. Jan, 27. Nov, 22. Improved phonograph compensation cir- PHONOGRAPH REPRODUCTION The; Charles R. Sinclair. May, 20. cuits; R. H. Brown. Nov, 28. Accurate design of phono equalizers; Transformerless 25-watt amplifier for Improving loudspeaker performance; Charles F. Hempstead and Hamilton conventional loudspeakers; D. P. David B. Weems. Sept, 22. Barhydt. I, Aug, 22; II, Sept, 24. Dickie, Jr. and A. Macovski. June, 22. INDUSTRIAL SYSTEMS Improved phonograph compensation TRANSIENT RESPONSE Security sound system; Alan P. Ches- circuits; R. H. Brown. Nov, 28. Transient and frequency response in ney. July, 24. Motor rumble reduction in wide-range audio equipment; Charles P. Boegli. Inventions, Employers' rights in em- phonographs; John R. Cater. Nov, Feb, 19. ployees' ——; Albert Woodruff Gray, 32. —— of audio amplifiers; AUDIOL- Oct, 37. Pickup loading and its effect on fre- OGY. Mar, 10. Juke box goes hi-fi, The; C. G. McProud. quency response; W. A. FitzMaurice TRANSISTORS Dec, 33. and W. Joseph. July, 19. Transistor phono preamp for magnetic LOUDSPEAKERS Pickups and tone arms, Handbook of pickups; Basil T. Barber. Oct, 38. Adventures with a bass reflex; Milton Sound Reproduction, Chap, 16; Edgar Transistor remote amplifier, A; Paul S. Snitzer. Jan, 26. M. Villchur. Feb, 33. Penfield, Jr. Sept, 26. Concrete monster, The; James Fergu- Transistor phono preamp for magnetic Variable damping factor control; Charles son. July, 17. pickups; Basil T. Barber. Oct, 38. A. Wilkins. Sept, 31. Chart of resistor values for L-pads; H. Place your music decoratively; Irving White sound testing; Richard C. Hitch- Peter Meisinger. Nov, 25. Greene. Feb, 24. cock. Oct, 41.

66 AUDIO • DECEMBER, 1954 SUBJECT INDEX

1955

AMPLIFIERS Collaro transcription turntable; Nov. 46. Tuned-pipe enclosure for bass enhance- —, Edgar M. Villchur. Apr. 34. Craftsmen Solitaire amplifier; May 31. ment; Raymond H. Bates. May 18. Amplifiers and Preamplifiers, a 40-page Crestwood 304 tape recorder; June 60; Jacks and patch cords, Care of; Eugene F. section, C. G. McProud, Jan. 33. Sept. 38. Coriell. Aug. 20. Amplifier uses cheap output transformer; Dual record player; June 60. Nathan Grossman and William Hellman, Electro-Sonic Laboratories pickups; Dec. Aug. 11. 38. MEASUREMENTS Back to class B for home use; Joel Julie. Electro-Voice 666 microphone; May 58. Mar. 19. General Electric A1-901 record filter; Apr. Artifical ear for measurement of headset Effect of cathode capacitor on push-pull 48. response; Chandler Stewart. May 28. output stage; Robert M. Mitchell. Nov 21. Harman-Kardon "Festival" tuner-amplifier; Effect of cathode capacitor on push-pull High-gain transistor amplifier; James J. Jan. 61. output stage. Robert M. Mitchell. Nov. 21. Davidson. Oct. 66. Harman-Kardon "Trend" amplifier; Oct. 74. Make your own meter scales; Ronald L. High-power low-distortion amplifier; Bruce Kingdom-Lorenz speaker line; Nov. 46. Ives. Apr. 30. DePalma. June 15. Mclntosh MC-30 amplifier, C-8 preamp ; Apr. Uses and abuses of the VU meter; Oliver New amplifier-speaker system; Curtiss R. 44. Berliner. Nov. 34. Sehaefer. July 13. National "Criterion" tuner; Oct. 74. M.I.T. Audio Network, The; David L. Novel tape recording amplifier; Arieh F. Panasonic 8-in. speaker; Dec. 40. Klepper. Jan. 16. Fischmann. June 24. Pentron CT-1 tape recorder; Mar. 40. Nature of Sound, The; Chap. 1 of "Sound." Point-contact transistor audio amplifiers; Pilotone AA-420 amplifier; Feb. 32. Edgar Villchur. Sept. 30. Richard F. Schwartz. July 22. Pilotrol PA-913 control unit; June 60. Negative feedback; Edgar M. Villchur. Quality amplifier for the home, Albert Presto Pirouette turntable; Dec. 36. June 22. Preisman. May 15. Radio Shack "Realist" tuners and ampli- New Approach to electrical resonance; Nor- Small 10-watt package of high quality, fier; Feb. 36. man H. Crowhurst. Feb. 28. Harold Reed. Apr. 26. Rauland HF-155 and TV tuners; Nov. 46. Novel tape recording amplifier; Arieh F. Sound system for multiuse auditorium, Rek-O-Kut turntable line; Mar. 38. Fischmann. June 24. Thomas R. Hughes. Dec. 17. REL "Precedent" tuner; July 87. Patch cords, care of jacks and; Eugene F. What's all this about damping? Norman Rex-A record changer; May 36. Coriell. Aug. 20. Sargent Rayment 808 tuner; Feb. 34. Patents, Necessary features for design; H. Crowhurst. Sept. 17. H. H. Scott 710A turntable; Oct. 74. Albert W. Gray. Sept. 36. Sherwood S-1000 amplifier; Nov. 50. Patent law changes in the 1952 statute; AT HOME WITH AUDIO, Lewis C. Stone. TechMaster preamplifier; Mar. 36. Albert W. Gray. May 27. Mar. 26; June 18; Oct. 28; Dec. 18. Triad amplifier kits; Sept. 38. Fletcher-Munson again; Norman H. Crow- AUDIO CLINIC, Joseph Giovanelli. Nov. 32; hurst. Nov. 28. PHONOGRAPH EQUIPMENT, a 32-page Dec. 34. Frequency response circle diagrams; Olan section ; C. G. McProud. June 28. E. Kruse. Mar. 33. Adapting a record changer to hi-fi; AUDIO SHOWS Adolphe F. Sterken. July 21. Alta Fidelidad in Mexico, Otto Mayer- FANTASY Around-the-World portable; Arnold J. Serra. Nov. 26. Gassen. Apr. 17. Japan goes Hi-Fi, Warren Birkenhead. Audio and the dragon pup; Eleanor Ed- Evaluation of high-fidelity phono pickups; Feb. 22. wards. May 26. John M. Salani. March 25. Mexico's Hi-Fi Fair, Leonard Carduner. Languad expert looks at Hi Fi; George Highway Hi Fi; Peter C. Goldmark. Dec. 23. L. Augspurger. Aug. 18. Feedback, Negative; Edgar M. Villchur. June Dec. 15. Audio Society, Poughkeepsie; Charles R. Poughkeepsie Audio Society; Charles R. Doty. Feb. 24. 22 Hi-Fi Standards; Edgar M. Villchur. Nov. Doty. Feb. 24. 40. AUDIO TECHNIQUES; R. S. Houston. Feb. 27. Briggs concert, Technical aspects of PREAMPLIFIERS the; P. J. Walker. Nov. 30. HEARING The acoustic earset—a new approach to Amplifiers and Preamplifiers, a 40-page sec- conference applications; D. D. Jones. tion; C. G. McProud. Jan. 23. BROADCASTING Oct. 43. Cascode preamp improves signal-to-noise Audio Techniques; R. S. Houston. Feb. 27. Artificial ear for measurement of headset ratio; M. V. Kiebert, Jr. Oct. 23. Care of jacks and patch cords; Eugene F. response; Chandler Stewart. May 28. Miniaturized "Preamp with Presence"; C. Coriell. Aug. 20. How do we hear? Charles E. White. Sept. G. McProud. May 20. Simple design for station-built console; 20. New approach to miniature preamplifier C. M. Edmonds. Apr. 21. design; Arthur J. Rose. Feb. 20. Uses and abuses of the VU meter; Oliver INDUSTRY Three-channel preamplifier-mixer, Harold Berliner. Nov. 34. Reed. Jan. 15. Record dealer views the stylus problem; Sam Goody. Oct. 32. Record dealer views the stylus problem; Sam CALCULATIONS Sound engineer at work; William H. John- Goody. Oct. 32. Frequency response circle diagrams; Olan son. July 24. Remote air-monitor speaker; Audio Tech- E. Kruse. Mar. 33. Success found in "sound" principles; Bert niques. Feb. 27. New approach to electrical resonance; N. Ennis. Jan. 18. Remote unattended; Audio Techniques. Feb. H. Crowhurst. Feb. 28. 27. Scaling—an aid in circuit analysis; Edgar Scaling—an aid in circuit analysis; Edgar D. Morgan. Feb. 26. LAW D. Morgan. Feb. 26. Unique relationships; Norman H. Crow- How long is "permanent" employment? Soldering tips for hobbyists; Leonard hurst. Oct. 62. Albert W. Gray. Dec. 22. Carduner. Aug. 13. Necessary featurers for design patent; SOUND, Chap. 1, The nature of sound. Albert W. Gray. Sept. 36. Edgar M. Villchur. Sept. 30. ELECTRONIC ORGANS Patent law changes in the 1952 statute; Chap. 2, Hi-Fi standards; Nov. 40. The new Minshall organ; Richard H. Dorf. Albert W. Gray. May 27. Chap. 3, The sound reproducing system. Sept. 25. Validity of sound truck restrictions; Albert Dec. 24. The Schober electronic organ ; Richard H. W. Gray. Aug. 17. Sound conditioning; Audio Techniques. Feb. Dorf. Dec. 27. LOUDSPEAKERS Sound engineer at work; William H. John- ENCLOSURES, Loudspeaker Commercial acoustic suspension speaker; son. July 24. Constant-width folded exponential horn Edgar M. Villchur. July 18. Sound truck restrictions, Validity of; Albert (The CW horn) ; D. P. Carlton. Nov. 17. CW-horn—constant width folded exponen- W. Gray. Aug. 17. "Patrician" gets a home workout; Cullen tial horn; D. P. Carlton. Nov. 17. Stereophonics, Experiences in; Paul W. H. Macpherson and Roy C. Carlson. Design of Biflex loudspeakers; Alexis Bad- Klipsch. July 16. Oct. 37. maieff Nov. 24. Success found in "sound" principles; Bert Tuned-pipe enclosure for bass enhance- Electrostatic loudspeaker; Lloyd J. Bobb Ennis. Jan. 18. ment; Raymond H. Bates. May. 18. and Edwin C. Gulick. Sept. 22. New amplifier-speaker system; Curtiss R. Schaefer. July 13. PUBLIC ADDRESS EQUIPMENT REPORTS "Patrician" gets a home workout; Cullen Acoustic Research AR-1 speaker; Oct. 74. H. Macpherson and Roy C. Carlson. Sound system for multiuse auditorium; Bard Orthosonic pickup arm; Dec. 40. Oct. 37. Thomas R. Hughes. Feb. 17. B-J phono arm; Apr. 46; May 59. Selecting a loudspeaker; Charles T. Mor- Stereo sound system covers Hollywood Browning L-300 tuner; May 34. row. May 24. Bowl; Oliver Berliner. Aug. 14.

66 AUDIO • DECEMBER, 1955 SYSTEMS Stereo sound system covers Hollywood TUNERS Bowl; Oliver Berliner. Aug. 14. "Good Music" tuner for fringe areas; Basil Acoustic earset—new approach to confer- Technical aspects of the Briggs Concert; P. C. Barbee. Mar. 22. ence applications; D. D. Jones. Oct. 43. J. Walker. Nov. 30. Tuners—AM, FM, and AM-FM: a 16-page Building simplicity into the hi-fi system; section. C. p. McPround. Aug. 23. Ross H. Snyder. Oct. 49. Unique relationships; Norman H. Crow- M. I. T. audio network; David L. Klepper. hurst. Oct. 62. Jan. 16. TRANSISTORS Universal mike input system; Audio Tech- niques, Feb. 27. Simple design for station-built console; High-gain transistor amplifier; James J. Uses and abuses of the VU meter; Oliver C. M. Edmonds. Apr. 21. Davidson. Oct. 66. Berliner. Nov. 34. Sound system for multiuse auditorium; Point contact transistor audio amplifiers; Validity of sound truck restrictions; Albert Thomas R. Hughes, Feb. 17. Richard F. Schwartz. July 22. W. Gray. Aug. 17.

AUDIO • DECEMBER, 1955 67 SUBJECT INDEX

1956

AMPLIFIERS Speaker enclosures—Sound. Chap. 10; Edgar MUSIC Conference amplifier for the hard-of-hear- M. Villchur. June 34; Aug. 22. An experiment in true-fidelity organ repro- ing business executive; Robert M. Mit- duction; Julian D. Hirsch. Apr. 26. chell. Nov. 46. EQUALIZATION Artistic integrity of the record; Otto Meyer- Audio design chart—amplifier or loud- Compression and dialog equalization in Serra. Mar. 20. speaker impedance. Nov. 22. motion picture sound recording; Edward Experiment III — the Beta-Tron; Stan P. Ancona. June 17. MUSICAL INSTRUMENTS While. May 28. The Conn electronic organ; Richard H. Interaction concept in feedback design; FEEDBACK Dorf. Sept. 28; Oct. 48. Norman H. Crowburst. Oct. 38; Nov. 32. Feedback tone-control circuit; Hamilton The Schober electronic organ; Richard H. Preamplifiers and amplifiers—Sound, Chap. Barhydt. Aug. 18. Dorf. Jan. 20; Feb. 23. 6; Edgar M. Villchur. Mar. 36. Internet ion concept in feedback design; Norman H. Crowhurst Oct. 38; Nov. 32. PHONOGRAPH EQUIPMENT Amplifiers, power—Sound, Chap. 8; Edgar A new turntable design; Rubin Carlson. M. Villchur. Apr. 49. Simplitronics — Feedback ; Harold Reed. Feb. 20. stabilizing transistor amplifiers; Richard Apr. 29. 11. Small. Dec. 47. PHONOGRAPH PICKUPS FILTERS Compensation for amplitude responsive AMPLIFIERS, PRE- Graphical solution of electrical filters; L. phono pickups; R. H. Brown. Nov. 26. Compensation Tor amplitude responsive U. Hamvas. Dec. 22. Pickups, tone anna, and needles—Round, phono pickups; R. 11. Brown. Nov. 26. Chap. 5; Edgar M. Villchur. Feb. 40. High-quality dual-channel amplifier; HIGH FIDELITY SYSTEM Compensation for amplitude responsive Charles W. Harrison. Jan. 13. A professional Hi-Fi home music system; phono pickups; R. H. Brown. Nov. 26. Preamplifiers and amplifiers—Round. Chap. Oliver Berliner. Apr. 23. 6; Edgar M. Villchur. Mar. 36. HUM PHONOGRAPH RECORDS Transistor preamps; H. F. Starke. Apr. 31. Design considerations for hum reduction; Artistic integrity of the record; Otto Meyer- Oliver Berliner. Nov. 38. Serra. Mar. 20. AT HOME WITH AUDIO, Lewis C. Stone Record speed and playing time; Charles P. Mar. 20; May 24; June 24. Boegli. Sept. 19. LAW ATTENUATORS Contracts against competitive employment; PSYCHOACOUSTICS Care of audio attenuators; Eugene F. Albert W. Gray. Oct. 44. An experiment in true-fidelity organ repro- Coriell. May 44. Features of patent-licensing agreements; duction; Julian D. Hirsch. Apr. 26. BRIGGS CONCERT—1956; C. G. McProud. Albert W. Gray. Dec. 48. How loud is silence? Charles E. White. Nov. 54. How long is "permanent" employment? Mar. 17. Albert W. Gray. Jan. 26. Noise—enemy of normal hearing; Charles BROADCASTING STUDIOS LOBS of patent by delayed application. Al- E. White. Nov. 18. A sound effects console for UN studios; D. bert W. Gray. Nov. 23. Room environment—Sound, Chap. 12; Edgar D. Jones. Sept. 26. M. Villchur. July 22. Special audio console meets WSB-TV LISTENING ROOMS RECORDING, Disc needs; Bert Enuls. Sept. 24. Sound—Room environment; Edgar M. Vill- Disc recording—Sound. Chap. 4; Edgar M. chur. July 22. Villchur. Jan. 17. COMMERCIAL SUPPRESSOR, Time delay; Ronald L. Ives. Nov. 24. LOUDSPEAKERS RECORDERS, Tape A semicircular exponential horn; Reuben Tape recorder section; C. G. McProud. Feb. CROSSOVER NETWORKS M. Cares. Oct. 26. 27. A survey of crossover networks; Richard Audio design chart; Amplifier or load- C. Hitchcock. Nov. 28. speaker impedance. Nov. 22. RECORDING, Equalization Interference effects with loudspeaker cross- Battles unbaffled; Edward J. Jordan. Aug. Compression and dialog equalization in over networks; Charles I. Boegli. Nov. 15. 15; Sept. 34. motion picture sound recording; Edward Diffaxial speaker; Abraham B. Cohen. June P. Ancona. June 17. DESIGN CHART 20. Amplifier or loudspeaker impedance. Nov. 22. Experiment III—the Beta-Tron; Stan White. RECORDING, Tape May 28. Distortion in tape recording; Herman DISTORTION Future of loudspeaker design; Norman II. Burstein and Henry C. Pollak. Oct. 30. In tape recording; Herman Burstein and Crowhurst. Dec. 19. Multiple tape copying; R. E. Baird. Dec. 36. Henry Pollak. Oct. 30. Improved circuit for electrostatic tweeters; Charles E. Colin. Oct. 36. STEREOPHONIC ENCLOSURES Interference effects with loudspeaker cross- Stereophonic microphone placement; James A folded horn design; Richard A. Greiner. over networks; Charles P. Boegli. Nov. 15. Cunningham and Robert O. Jordan. Nov. Dec. 40. Ported loudspeaker cabinets; James Moir. 43. A semicircular exponential horn; Reuben Oct. 23. M. Cares. Oct. 26. Report on friction loading; C. G. McProud, SYSTEMS Baltics unbaffled; Edward J. Jordan. Aug. June 38; July 26. A professional Hi-FI home music system; 15; Sept. 34. Sound—Loudspeakers; Edgar M. Villchur. Oliver Berliner. Apr. 23. Concrete for loudspeaker enclosures; Phil May 46. College music room design; Merle Fleming J. Walusek. Dec. 25. What makes a woofer? Saul J. White. and Elliott D. Full. Dec. 28. Ported loudspeaker cabinets; James Moir. May 30. Oct. 23. TONE CONTROLS Report on friction loading; C. G. McProud. MICROPHONES A versatile bass-treble tone control; Charles June 38; July 26. Stereophonic microphone placement; James T. Morrow. Sept. 17. Semi-solid corner enclosure; H. P. Foerster. Cunningham and Robert O. Jordan. Nov. Feedback tone-control circuit; Hamilton Dec. 39. 43. Barhydt. Aug. 18.

86 AUDIO • DECEMBER, 1956 TRANSFORMERS TRANSISTORS Transistor preamps; H. F. Starke. Apr. 31. Audio transformers can be good; Norman Simplitronics—Understanding the r's in Transistor tips and techniques; Paul Pen- H. Crowhurst. May 22. transistors; Harold Reed. Aug. 21. field. Feb. 17. Input transformer design; Norman H. Stabilizing transistor amplifiers; Richard Crowhurst. June 27; July 17. H. Small. Dec. 47. TUNERS Output transformer design; Norman H. Transistor notion; Paul Penfield. Oct. 15. Increasing sensitivity and lowering distor- Cruwhurst. Sept. 20. Transistorized AM tuner conversion; Ed- tion in FM tuners; Joseph Marshall. Dec. Transformer design considerations for zero win Bohr. July 15. 30. impedance stages; N. R. Grossner. Mar. Transistor bias Stabilisation; Paul Pen- Transistorized AM tuner conversion; Edwin 27. field. May 34; July 20. Bohr. July 15.

AUDIO • DECEMBER, 1956 87 1957

ACOUSTICS Which tube shall I use?; George Fletcher Toward ultimate fidelity; Bruce H. Varde- man. Apr. 17. Auditorium acoustics and control facilities Cooper, Nov. 30. for reproduction in auditory perspective; E. H. Bedell, Sept. 24. DISTORTION MANUFACTURING Sad case of a half-watt resistor; Walther How the factory does it. Feb. 30. AMPLIFIERS Richter. Dec. 36. "Understanding intermodulation distortion; Care and treatment of feedback audio Mannie Horowitz. Aug. 22. MEASUREMENTS amplifiers; W. B. Bernard. Jan. 30. Hum specification measurements; Mannie Electrical adjustment in fitting a new out- Horowitz. June 26. put transformer; Norman H. Crowhurst. ENCLOSURES Apr. 19. Transistor VU meter; Paul Penfield Jr. High-quality treble amplifier; Charles W. Aperiodic loudspeaker enclosure; Dr. E. Apr. 22. Harrison Jr. Aug. 15. De Boer. July 13. High-quality tape recorder amplifier; Her- I get hot music from a cool cabinet; David MERCHANDISING man Burstein and Henry C. Pollak. I K. Slifer. Mar. 24. Jan. 15; II Feb. 32. Integral speaker systems, pro and con; Hi-Fi salesman—friend or foe? ; Marco How an output transformer causes dis- Herman Burstein. Oct. 40. Karpodines. May 26. tortion ; Norman H. Crowhurst. I Feb. "Standard" speaker system; C. Q. Mc- 20; II Mar. 21. Proud. Jan. 86. Impedance and feedback in audio circuits; Toward ultimate high fidelity; Bruce H. MUSICAL INSTRUMENTS Herman Burstein and Henry C. Pollak. Vardeman. Apr. 17. Violin and its hi-fi analogies; Anthony Dec. 26. Doschek. I Sept. 17; II Oct. 42. Low-noise transistor microphone amplifier; James T. Davidson. Oct. 28. EQUALIZERS NETWORKS Output transformer specifications; Norman Equalizer design; Norman H. Crowhurst. Recording characteristic simulator; S. K, H. Crowhurst. June 20. Ghandi. Apr. 24. Sad case of a haIf-watt resistor; Walther I Aug. 17; II Sept. 34. Richter. Dec. 36. Professional equalizer-preamp suitable for Single-channel transistorized remote am- home use; Kenneth W. Betsh. Feb. 18. PATENTS plifier; John K. Birch. May 36. Cascode amplifier for phono preamps; Stereophonic magnetic recording amplifier; EQUIPMENT REVIEWS Joseph Marshall. Apr. 26. Arthur W. Wayne. Oct. 21; Nov. 38. Essentials of combination patents; Albert Stereo-monaural companion amplifier for AR-2 Loudspeaker; Sept. 54. Woodruff Gray. Mar. 30. the "Preamp with Presence"; Louis Audak KT Arm; Mar. 35. Forbidden fruit of patent pooling; Albert Bourget. Nov. 19. B-J series 90 Arm ; Nov. 64, Woodruff Gray. Nov. 42. Transistor playback amplifier; Fred Wy- Bogen ST10 stereo conversion amplifier; Phonograph pickup arm—a problem; H. man. Sept. 20. July 26. A. Schwan, Apr. 28. Two-channel mixer for Auricon film cam- Capps condenser microphone; Mar. 35. Professional equalizer-preamp for home era; Donald K. Haahr. Nov. 36. Connoisseur turntable; Feb. 40. use; Kenneth W. Betsch. Feb. 18. Two-channel transistor remote amplifier- Dyna preamp and Dynakit III; Dec. 50. Transistor preamp for low-output pickups; mixer; Donald K. Haahr. Sept. 46. ESL "Dust Bug"; Oct. 52. Anton Schmitt. July 20. Which tube shall I use?; George Fletcher Fairchild 412-1 turntable, 280A transcrip- Cooper. Nov. 30. tion arm; Dec. 50. Garrard line of phono equipment, Dec. 54. PREAMPLIFIERS Garrard Model T "Mark II"; July 26. ATTENUATORS Garrard TPA-10 Arm; Oct. 48. Cascode amplifier for phono preamps; General Electric VR-II Pickup; Dec. 52. Joseph Marshall. Apr. 26. High-impedance mixing for professional Grado Pickup; Sept. 54. Transistor preamp for low-output pickups; audio equipment; George L. Augspurger, Kingdom Audette Sr.; Sept. 56. Anton Schmitt. July 20. Feb. 13. Metzner Starlight turntable and arm ; Oct. 52. Matching impedance, variable attenuation PRINTED CIRCUITS box; Harold Reed. May 46. Miratwin, Miracord, and Miraphon line; Sept. 52. Role of printed wiring In high fidelity; Philips tape recorder; Nov. 60. Norman H. Crowhurst. May 17. BELL TELEPHONE LABORATORY Series Pickering Fluxvalve cartridge; Feb. 38. Acoustic illusion telephonically achieved; Pilot AA-920 and AA-903B amplifiers; Oct. PSYCHOACOUSTICS Harvey Fletcher. July 22. 50. Auditorium acoustics and control facili- Shure Bros' Dynetic pickup ; May 48. Above all, the ear; Jennis A. Nunley. May ties Tor reproduction in auditory per- Sonotone HFA-150 amplifier; Apr. 36. 15. spective; E. H. Bedell. Sept. 84. Steel Slides; Feb. 40. Acoustical and electrical considerations in Auditory perspective; W. B. Snow, Aug. 20. Stephens FR-80 loudspeaker; Oct. 48. symphony orchestra reproduction; Wal- Loudness, Its definition, measurement, and Tape-Indx and Perma-File; Oct. 101. ter T. Selsted. Jan. 22. calculation; Harvey Fletcher and W. A. Tech-master Model 19K 60-watt amplifier; Acoustic illusion telephonically achieved; Munson. I, Nov. 53; II, Dec. 40. July 25. Harvey Fletcher, July 22. Loudspeakers and microphones for audi- Wharfedale 3-way speaker systems; Nov. Adequate audio power in the home; James tory perspective; A. L. Thuras. Oct. 34. 62. Moir. Mar. 16. Xophonic reverberation unit. Nov. 64. Auditory perspective; W. B. Snow. Aug. 20. Reproduction of orchestral music in audi- Electrostatics, watts, realism and concert tory perspective; June 16. halls; Gilbert A. Briggs. Feb. 26. FEEDBACK Fidelity perilous; George L. Angspurger. Oct. 30. BOOK REVIEW Care and treatment of feedback audio am- Hi-Fi in the home—musical sound or blast; Acoustics for the Architect; Harold Bur- plifiers; W. B. Bernard. Jan. 20. Leonard Warren. Mar. 15. ris-Meyer and Lewis Goodfriend, Oct. 77. Impedance and feedback In audio circuits; Loud ness, its definition, measurement and Herman Burstein and Henry C. Pollak. calculation; Harvey Fletcher and W. A. Dec. 26. Munson. I Nov. 53; II Dec. 40. BROADCASTING Loudspeakers and microphones for audi- tory perspective; A. L. Thuras. Oct. 34. Low-noise transistor microphone amplifier ; HUM James J. Davidson. Oct. 28. New concept on psychological aspects of Single-channel transistorized remote am- Hum specification measurements; Mannie stereo sound; H. F. Hume. Mar. 26. plifier; John K. Birch. May 36. Horowitz. June 26. Reproduction of orchestral music in audi- Two-channel mixer for Auricon film cam- More about hum; Harold Reed. Jan. 25. tory perspective; June 16. era; Donald K. Haahr. Nov. 36. "Third dimension" in sound; Sept. 22. Two-channel transistor remote amplifier- mixer; Donald K. Haahr. Sept. 46. LAW RECORDING, Disc Essentials of combination patents; Albert Recording characteristic simulator; S. K. Woodruff Gray. Mar. 30. Ghandi. Apr. 24. CONTROLS Forbidden fruit of patent pooling; Albert Take your recording room with you. Feb. "Free-riding" control relays; Ronald L. Woodruff Gray. Nov. 42. 24. Ives. Mar. 20. LOUDSPEAKERS RECORDING, Tape CROSSOVER NETWORKS Aperiodic loudspeaker enclosure; Dr. E. Dubbings duplicator; Herman Burstein. De Boer. July 13. Nov. 23. RC crossover compromise; Norman H. Integral speaker systems, pro and con; High-quality tape recorder amplifier; Her- Crowhurst. July 17. Herman Bursteiu. Oct. 40. man Burstein and Henry C. Pollak. I Loudspeaker damping; Edgar Villchur. Jan. 15; II Feb. 32. Oct. 24. Stereophonic magnetic recording ampli- DESIGN RC crossover compromise; Norman H, fier; Arthur W. Wayne. I Oct. 21; II Impedance and feedback in audio circuits; Crowhurst. July 17. Nov. 38. Herman Burstein and Henry C. Pollak, "Standard" speaker system; C. G. Mc- Stereo recorder—a revelation and an edu- Dec. 26. Prond. Jan. 26. cation; Joseph E. Freda. Dec. 19.

94 AUDIO • DECEMBER, 1957 RESISTORS How to plan your Hi-Fi System; C. R. TRANSISTORS Tieman. Dec. 24. Sad case of a half-watt resistor; Walther Integral speaker systems, pro and con; Low-noise transistor microphone ampli- Richter. Dec. 36. Herman Burstein, Oct. 40. fier; James J. Davidson. Oct. 28. System simplicity in audio; R. G. Chap- lick. Jan. 38. Single-channel transistorized remote am- STEREOPHONIC "Third dimension" In sound; Sept. 22. plifier; John K. Birch. May 36. Acoustic illusion telephonically achieved; Transformers in transistorized equipment; Harvey Fletcher. July 22. Norman H. Crowhurst. Nov. 46. Auditory perspective; W. B. Snow. Aug. TEST EQUIPMENT Transistor playback amplifier; Fred Wy- 20. man. Sept. 20. Loudspeakers and microphones for audi- Matching impedance, variable attenuation Transistor preamp for low-output pickups; tory perspective; A. L. Thuras. Oct. 34. box; Harold Reed. May 46. Anton Schmitt. July 20. New concept on psychological aspects of stereo sound; H. P. Hume. Mar. 26. Transistor tone-control circuits; F. D. Reproduction of orchestral music in audi- TONE CONTROLS Waldhauer. Sept. 27. tory perspective; June 16. Transistor tone-control circuits; F. D. Transistor VU meter; Paul Penfield Jr. Stereo-monaural companion amplifier for Waldhauer. Sept. 27. Apr. 22. the "Preamp with Presence"; Louis Two-channel mixer for Auricon film cam- Bourget. Nov. 19. era; Donald K. Haahr. Nov. 36. Stereo recorder—a revelation and an edu- TRANSFORMERS Two-channel transistor remote amplifier- cation ; Joseph B. Freda. Dec. 19. mixer; Donald K. Haahr, Sept. 46. Electrical adjustment in fitting a new out- put transformer; Norman H. Crowhurst. SYSTEMS Apr. 19. TUBES Acoustical and electrical considerations in How an output transformer causes dis- symphony orchestra reproduction; Wal- tortion; Norman H. Crowhurst. I Feb. Which tube shall I use?; George Fletcher ter T. Selsted. Jan. 22. 20; II Mar. 21. Cooper. Nov. 30. Electrostatics, watts, realism, and concert halls; Gilbert A, Briggs. Feb. 26. Output transformer specifications; Norman Ford Memorial Auditorium exemplifies H. Crowhurst. June 20. TUNERS sound redesign; Bert Ennis. May 28. Transformer impedance transformation; High-impedance mixing for professional Harold Reed. June 24. Add a tuning indicator to ratio-detector audio equipment; George L. Augspurger. Transformers in transistorized equipment; FM receiver; Carl R. Wischmeyer, Apr. Feb. 15. Norman H. Crowhurst. Nov. 46. 32.

AUDIO • DECEMBER, 1957 95 1958

AMPLIFIER EQUIPMENT REVIEWS Transistor beta tester with linear scale; Amplifier performance: specifications and Aero Ultra-Linear II Amplifier. Dec. 42. Sergio Bernstein. July 21. evaluation ; Herman Burstein. Feb. 24. Ampex stereo system. Mar. 48. Understanding the db, dbm, and the VU; Amplifier using the new 6CZ5's ; Nathan Audio Tech speaker. Oct. 52. Julian L. Bernstein. Nov. 30. Grossman. July 23. Baker 12" loudspeaker. June 34, VU meter in tape recording; Herman Bur- Auto audio system ; William B. Fraser. Connoisseur pickup and phono arm. Feb. 36. stein. Dec. 17. Mar. 19. Conrac Fleetwood TV. Mar. 52. Compact two-channel amplifier for stereo EICO HFT-90 FM tuner kit. June 36. MICROPHONES systems; C. G. McProud. Aug. 54. ESL Series 60 pickup. Apr. 42. M-S stereophony and compatibility; Gerhart Damping factor chart; Phil Phillips. Nov. Fairchild 248 stereo amplifier. Dec. 46. Bore and Stephen F. Temmer. Apr. 19. 24. General Electric stereo cartridges. Dec. 45. For stereo—the bi-ortho output circuit; C. Glaser-Steers GS-77 changer. Apr. 39. MIXER Nicholas Pryor. Nov. 22. Harman-Kardon A-224 stereo amplifier/pre- Ten-channel audio mixer-preamplifier; Har- High-power audio amplifiers ; Mannie Horo- amplifier. Nov. 46. old Reed. Jan. 27. witz. Mar. 34. F-10 FM tuner. Sep. 44, Oct. 56. Hybrid feedbacks for power amplifiers; Heathkit EA-2 amplifier. July 30. MULTIPLEX Herbert I. Keroes. Sep. 30. W-6M amplifier. Jan. 42. Improving the tape amplifier; Herman Bur- ISI A-10 speakers. Feb. 36. Compatible stereo multiplex adapter; Leon- stein and Henry C. Pollak, July 17. KLH speaker line. May 38. ard Feldman. Oct. 30, Nov. 42. Integrated audio monitor for home and Karg "Tunematic" FM tuner and multiplex/ FM/Multiplex converter; Harold R. Day. studio use; Ronald L. Ives. Apr. 24. stereo units. Oct. 54. Aug. 19. "Isodyne" phase splitter; E. F. Worthen, Lektrostat record cleaner. July 30. Questions and answers on stereo and m/x; Aug. 26. Madison Fielding 320 stereo amplifier and Louis J. Kleinklaus. Aug. 20. Low-distortion 50-watt amplifier; W. I. 330 stereo tuner. Sep. 42. Heath and G. R. Woodville. Jan. 19. Miracord XS-200 changer. June 34. NETWORKS Measurement of amplifier internal impe- Neshaminy Z-200 speaker system. Mar. 52. EC filter design for high impedance cross- dance; W. H. Anderson. Sep. 22. Pentron tape-recording equipment. June 36. over networks; Charles W. Harrison, Jr. Simplified audio amplifier; R. G. Chaplick. Pickering ''Isophase" loudspeaker. Jan. 42. Nov. 34. Oct. 24. Pilot SP-125 stereo preamplifier and SM-244 Use of twin-t type networks; Norman H. Stereo compatibility translator; Herbert M. stereo amplifier. June 38. Crowhurst. May 19. Honig. Aug. 24. Sargent-Rayment 300-M70 FM tuner and 70- Stereophonic recording and playback ampli- watt amplifier combination. Feb. 38. PATENTS fier ; Wayne K. Denny. Sep. 24. Scott 135 Stereo-adaptor. May 39. Trinity of the patent law—invention, nov- Three channel remote amplifier; Albert Shure 330 and 430 microphones. Jan. 46. elty, and utility; Albert W. Gray. Mar. 44. Stratmoen. June 24. Tannoy "Belvedere" speaker. Oct. 56. Transients in feedback amplifiers; George Tandberg Model 3-Stereo tape recorder. July PHONOGRAPH EQUIPMENT Fletcher Cooper. Mar. 31. 28. Two-way stereophonic amplifier; B. B. Telematic speaker. Oct. 52. Adapting a Garrard changer to stereo pick- Bauer. J. M. Hollywood, and G. P. Maer- United Speaker Systems' X-100 speaker. Nov. ups ; May 32. kle. Oct. 19. 46. Convert your Collaro to stereo; Stanley G. Variable stereo suppresion control; John Viking 85 tape deck and RP-61 amplifier. Neufeld. Aug. 42. E. D'Errico. Aug. 23. Dec. 43. PHONOGRAPH PICKUPS BELL TELEPHONE SYSTEM REPRINTS FANTASY How to make a stereo pickup; C. G. Mc- Hearing, the determining factor for high- New steampax recorder; Llessur Mahknit. Proud. Feb. 17. fidelity transmission; Harvey Fletcher. Oct. 28. Manufacture of a high-quality cartridge; July 24, Aug. 45, Sep. 34. Ruben E. Carlson. Aug. 30. Loudness—its definition, measurement, and Toward an optimum stereo cartridge; Her- calculation; Harvey Fletcher and W. A. FEEDBACK bert H. Horowitz. Oct. 44. Munson, Jan. 32, Feb. 34. Feedback and distortion; George Fletcher Universal phonograph reproducer; H. A. New system of sound recording; H. C, Har- Cooper. Feb. 30. Henning. Mar. 40. rison. May 34. Hybrid feedbacks for power amplifiers; Universal phonograph reproducer; H. A. Herbert I. Keroes. Sep. 30. PREAMPLIFIERS Henning. Mar. 40. Transients in feedback amplifiers; George Complete tone compensator; Robert M. Voss. Fletcher Cooper, Mar. 31. June 18. BOOK REVIEWS Paging preamplifier; Mannie Horowitz. Apr. Music and the western man; ed. by Peter FILTERS 22. Garvie. Oct. 12. Simplified control unit; R. G. Chaplick. Tape Recorder Circuits; Herman Burstein Comb filters, anyone? Norman II. Crow- Sep. 17. and Henry C. Pollak. Feb. 55. hurst. June 17. Ten-channel audio mixer-preamplifier; Har- old Reed. Jan. 37. CABINET IMPEDANCE MATCHING PSYCHOACOUSTICS Design of a high-quality stereo console; R. Why match impedances? Paul Penfield, Jr. A. Joss. Nov. 38. Apr. 32. Hearing, the determining factor for high- fidelity transmission; Harvey Fletcher. CONTROLS July 24, Aug. 45. Sep. 34. LAW Londness—its definition, measurement and Complete tone compensator; Robert M, Voss. Employer rights in employee inventions. calculation; Harvey Fletcher and W. A. June 18. Albert W. Gray. Oct. 50. Munson. Jan. 32, Feb. 34. Improved loudness control; J. P. Went- Price discrimination in wholesale and retail Standing waves—an audio booby trap; Wil- worth. Jan. 30. sales. Albert W. Gray. Feb. 60. liam D. Bell. Oct. 22. Trinity of the patent law—invention, nov- DAMPING FACTOR elty, and utility; Albert W. Gray. Mar. 44. RECORDING, DISC Damping factor chart; Phil Phillips. Nov. Compatible stereophonic record; B. B. Bauer, 24. LOUDSPEAKERS Peter C. Goldmark, and William S. Bach- Compact Ultra-Linear speakers for stereo; man. May 26. DISTORTION Victor Brociner. Aug. 38. Improving the performance of stereophonic Feedback and distortion; George Fletcher Compass-1—a new loudspeaker design; Mil- disc playback systems; B. B. Bauer. Aug. Cooper. Feb. 30. ton D. Thai berg. Apr. 34. 34, High-fidelity buss cone loudspeakers; A. B. New approach to stereo discs; Maximilian ELECTRONIC SWITCH Sarkar. Dec. 28. Weil. June 28. Simple electronic switch ; P, Cremaschi. Improvement in "air suspension" speaker New electromechanical method of matrixing Feb. 26. enclosures with tube venting; Philip B. the two components in stereophonic disc Williams and James F. Novak. Nov. 18. recording; Hans-Joachim Klemp. Horst Redlieh, and Stephen F, Temmer. Nov. 26. ENCLOSURES New high-frequency speaker; Edgar Vill- chur. Oct. 38. New sytems of sound recording; II. C. Har- Compart ultra-linear speakers for stereo; Two custom-built corner horn enclosures; rison. May 34. Vic-tor Brociner. Aug. 38. Laurent Gagnon. Feb. 20. Phasing in stereophonic recording; William Compass-1—a new loudspeaker design; Mil- S. Bachman. Nov. 17. ton D. Thalberg. Apr. 34. Custom-built corner horn enclosures; MEASUREMENTS RECORDING, TAPE Laurent Gagnon. Feb. 20. Measurement of amplifier internal impe- Equalization in tape recorders; Herman Improvement, in "air suspension" sneaker dance; W. H. Anderson. Sep. 22. Burstein. Mar. 28. enclosures with tube venting; Philip B. Output power measurements; Mannie Horo- Improving the tape amplifier; Herman Bur- Williams and James F. Novak. Nov. 18. witz. Dec. 38. stein and Henry C. Pollak. July 17. Simple transistor tester; Richard Burwen. Stereophonic recording and playback ampli- EQUALIZATION May 30. fier; Wayne B. Denny. Sep. 24, Equalisation in tape recorders; Herman Stabilized variable-sensitivity tuning meter; Tape tension—the neglected dimension ; Er- Burstein. Mar. 28. Ronald L. Ives. June 20. win J. Saxl. Dec. 34.

78 AUDIO • DECEMBER, 1958 VU meter in tape recording; Herman Bur- How to make a stereo pickup; C. G. Mc- kle. Oct. 19. stein and Henry C. Pollak. Dec. 17. Proud. Feb. 17. Variable stereo-suppression control; John Improving the performance of stereo disc E. D'Errico. Aug. 23. playback systems; B. B. Bauer. Aug. 34. M-S stereophony and compatibility ; Gerhart SHIELDING SYSTEMS Spiral steel shielding for audio circuits; Bore and Stephen F. Temmer. Apr. 19. Ronald L. Ives. Dec. 40. Manufacture of a high-quality cartridge; Auto audio system ; William B. Fraser. Mar. Ruben B. Carlson. Aug. 30. 19. Monaural, binaural, monophonic, and stereo- Hi-fl with that coffee aroma; Edwin A. SOUND MOTION PICTURES phonic; Harry F. Olson. Sep. 28. Snape. Dec. 20. Amateur sound film equipment; H. Thiele. New approach to stereo discs; Maximilian Sound recording and reinforcing at the Jan. 24. Weil. June 28. Monterey jazz festival; Russell J. Tink- New electromechanical method of mat rising ham. Dec. 22. the two components in stereophonic disc- Trends in audio ; Herman Burstein. Apr. 28. STEREOPHONIC recording; Hans-Joachim Klemp, Horst Adapting a Garrard changer to stereo Redlich, and Stephen F. Temmer. Nov. 26. pickups. May 32. Phasing in stereophonic recording; William TRANSIENTS Compact two-channel amplifier for stereo S. Bachman. Nov. 17. Testing for transients; George Fletcher systems; C. G. McProud. Aug. 54. Questions and answers on stereo and m/x; Cooper. Apr. 26. Compatible stereo multiplex adapter; Leon- Louis J. Kleinklaus. Aug. 20. Transients in feedback amplifiers; George ard Feldman. Oct. 30, Nov. 42. Stereo compatibility translator; Herbert M. Fletcher Cooper. Mar. 31. Compatible stereophonic record ; B. B. Bauer, Honig. Aug. 24. William S. Bachman, and Peter C. Gold- Stereo phasing problem; C. G. McProud. mark. May 26. Sep. 38. TRANSISTORS Convert your Collaro to stereo; Stanley G. Stereophonic recording and playback ampli- Amateur sound film equipment; H. Thiele. Neufeld. Aug. 42. fier ; Wayne B. Denny. Sep. 24. Jan. 24. FM/Multiplex converter; Harold R. Day. Toward an optimum stereo cartridge; Her- Simple transistor tester; Richard Burwen. Aug. 19. bert H. Horowitz. Oct. 44. May. 30. For stereo—the bi-ortho output circuit; C. Two-way stereophonic amplifier; B. B. Transistor beta tester with linear scale; Nicholas Pryor. Nov. 22. Bauer, J. M. Hollywood, and G. P. Maer- Sergio Bernstein. July 21.

AUDIO • DECEMBER, 1958 79 1959

AMPLIFIERS Simple single-cabinet corner stereo speaker; Simple single-cabinet corner stereo speaker; Amplifier distortion story; Norman H. C. G. McProud. Jan. 19. C. G. McProud. Jan. 19. Crowhurst. Apr. 35, May 24. Speaker system for perfectionists; James Speaker phasing with an oscilloscope; Bob Determining grid No. 2 dissipation in ultra- A Mitchell. Nov. 52. E. Tripp. May 10. linear amplifiers; Leonard Kaplan. Dec. Speaker system for perfectionists; James 24. EQUIPMENT PROFILES A. Mitchell. Nov. 52. Eight-position mixer; Morris Dollens. Apr. Acoustic Research AR-3 loudspeaker; Dec. "Trimensional" speaker system; Victor 25. 64. Brociner. Jun. 21. Low-loading self-biased amplifier; L. B. Ampex 960 stereo tape equipment; Jul. 40. Dalzell. Dec. 19. 880 stereo microphones; Jul. 44. MEASUREMENTS "Panphonic" stereo control amplifier; 881 headphones; Jul. 44. Audio oscillator circuits, old and new; George Manning Lewis. Sep. 44. Arkay AM-5 AM tuner kit; Apr. 48. Norman H. Crowhurst. Jul. 23. Purple cow; J. C. Witherspoon. Jan. 30. Bell "Carillon" stereo preamplifier/ampli- Decibel—fact or fable? Walter R. Westphal. Push-pull in hi fi; Manuie Horowitz. Apr. fier; Mar. 48. Mar. 27. 19. Blonder-Tongue Audio Baton; Feb. 48. Direct-reading damping-factor meter; W. Puzzled about amplifiers? Norman H. Collaro "Constellation" record changer; H. Anderson. Jan. 22. Crowhurst. Nov. 24. Oct. 76. Standard methods of measurements for am- Realistic audio engineering philosophy; Connoisseur Type B transcription turn- plifiers— IHFM-A-200. Oct. 26. Norman H. Crowhurst. Oct. 52. table; Jun. 40. Standard methods of measurements for Realistic bass without "boom;" Bruno Dual Model 1006 record changer; Jun. 38. tuners—IHFM-T-100. May 42, Jun. 48. Staffen. Feb. 21. Dynakit stereo control; Feb. 46. Technique of measuring I.M. distortion in 60-watt power amplifier with a silicon rec- Dynakit "Stereo 70" stereo amplifier; Sep. audio amplifiers; Leon Kuby. Oct. 64, tifier power supply; L. H. Dalzell. Mar. 54. Visual stereo monitoring; George L. Foster 36. EICO HF85 stereo preamplifier; Dec. 66. and Burwell Graham. Nov. 45. Standard methods of measurements for Fisher 400 stereo preamplifier; Jan. 44. amplifiers—IHFM-A-200. Oct. 26. X101A stereo preamplifier/amplifier; Nov. MICROPHONES "Stereo-Plus" system; Richard Shottenfeld 64. Acoustic-front damping in dynamic micro- and Walter Staudt. Oct. 23. General Electric MS-4000 "Stereo Classic" phones; W. T. Fiala. Mar. 28 Technique of measuring I.M. distortion in stereo preamplifier/amplifier; Jan. 40. Microphones for recording; Herman Bur audio amplifiers; Leon Kuby. Oct. 64. Glaser-Steers record changer cover; Jun. stein. Oct. 32. Ten-watt all-triode amplifier; Robert M. 42. Transistorized microphone preamplifier; Voss and Robert Ellis. Sep. 40. Harman-Kardon A250 stereo amplifier; Horace E. West. Nov. 50. Transistorized hi-fi preamplifier; Ernest Apr. 42. Severin. Dec. 48. Hartley 217-Duo stereo speaker; Apr. 47. MIXERS Transistorized microphone preamplifier; Jensen "Galaxy II" stereo speaker system; Eight-position miser; Morris Dollens. Apr. Horace E. West. Nov. 50. Oct. 74. 25. Transistorized remote-broadcast amplifier; Kingdom "Omega" speaker system ; Jun. 42. C. M. Edmonds. Jan. 24. Knight KN-120 DeLuxe stereo tuner; Jan. MULTIPLEX TW/PA2—a comprehensive tape preampli- 48. Heterodyne FM multiplex adapter; W. B. fier; Arthur W. Wayne. Jun. 17. Knight-Kit 83YX776 stereo preamplifier; Bernard. Dec. 50. Universal stereo control center; Francis A. Mar. 50. What about stereo multiplexing and mat- Gicca. Nov. 19. Koss stereo headphones; Nov. 62. rising? Norman H. Crowhurst. Sep. 26. Variable electronic crossover and biampli- Lafayette KT-600 stereo preamplifier; NOISE fier; George C. Kane. Aug. 42. May 34. Leak amplifier line; Sep. 50. Radio interference in audio equipment; ATTENUATORS Lesa CD2/21 record changer; Jul. 46. John C. Rice. Jul. 27. Parabolic attenuator; H. A. Schwan. Dec. Madison Fielding Series 360 Master Stereo- PATENTS 25. phonic Console; Dec. 64. Contributory infringement of patents; Al- Microlift phono tone arm control; Jun. 42. bert Woodruff Gray. Sep. 24. BOOK REVIEW Pilot SP-216A stereo preamplifier; Sep. 48. Reduction to practice—a patent essential; The Audio Cyclopedia ; Howard Tremaine. Precise Mark XXIV "Integra" stereo pre- Albert Woodruff Gray. Apr. 40. Aug. 99. amplifier/amplifier; Jul. 44. Reslo ribbon microphones; Jan, 46. PHASING BROADCASTING Sargent Rayment line; Oct. 72, Speaker phasing with an oscilloscope; Boh A compatible stereophonic sound system; Scott 299 Stereo amplifier; Nov. 59. E. Tripp. May 10. Floyd K. Becker, May 17. 222 stereo amplifier; Nov. 62. Double-duty disc-hop consolette; John Sony TFM-151 AM-FM transistor portable; PHONOGRAPH EQUIPMENT Whitacre. Feb. 30. Jan. 42. Magnetic counter—an essential component; Transistorized remote-broadcast amplifier, Sony Sterecorder tape machine; Dec. 60. John E. Turner, Jan. 28. C. M. Edmonds. Jan. 24. Tandberg Model 5-2 stereo tape machine; Apr. 46. PHONOGRAPH PICKUPS CONTROLS Telectro Series 900 tape decks; Feb. 50. Loading the piezoelectric cartridge; Her- A continuously variable stereo dimension Uher Universal tape equipment; Oct. 74. man Burstein. Mar. 21. control; Peter A. Stark. Jul. 22. University TMS-2 "Trimensional" stereo Moving-magnet stereo; Herbert Horowitz. Stereophonic tape recorder control; R. A. speaker; Sep. 50. May 19. Greiner. Dec. 28. Universal stereo control center; Francis A. FANTASY POWER SUPPLIES Gicca. Nov. 19. Elimination networks for hi-fi systems; 60-watt power amplifier with a silicon rec- Daniel R. Butterly. Jan. 40. tifier power supply; L. B. Dalzell. Mar. CROSSOVERS What is high fidelity? J. Gordon Holt. 36. Choice of a crossover frequency; James Oct. 45. Moir. Apr. 22. PRODUCT PREVIEW Variable electronic crossover and biampli- FILTERS Amplifiers and preamplifiers. Aug. 67. fier; George C. Kane. Aug. 42. Transistorized band-pass filter; Charles R. Arms. Sep. 74. Miller. Oct. 24. Loudspeakers. Aug. 74. DAMPING FACTOR INSTRUMENTS Microphones. Sep. 75. Direct-read ing damping-factor meter; W. Miscellanous. Aug. 111, Sep. 80. Audio oscillator circuits, old and new; Record changers. Aug. 79. H. Anderson. Jan. 22. Norman H. Crowhurst. Jul. 23. Series-tuned push-pull oscillator; B. J. Stereo cartridges. Sep. 70. DECIBELS Cuddy. Nov. 48. Tape accessories. Aug. 110. Decibel—fact or fable? Walter R. West- Visual stereo monitoring; George L. Foster Tape equipment. Aug. 82. phal. Mar. 27. Tuners. Aug. 71. and Burwell Graham. Nov. 45. Turntables. Aug. 81. DISTORTION LAW Amplifier distortion Story; Norman H. Errors and mistakes of engineers; Albert PSYCHOACOUSTICS Crowhurst. Apr. 35, May 24. Woodruff Gray. Aug. 56, Realistic bass without "boom;" Bruno Loudspeaker distortion due to the Doppler Staffen. Feb. 21. effect; Virginia Rettinger. Jul. 28. LOUDSPEAKERS Technique of measuring I.M. distortion in Calculation chart for vented cabinets; Vic- RECORDING—DISC audio amplifiers; Leon Kuby. Oct. 64. tor Brociner. Nov. 22. Record lubrication has considerable effect; Transformer distortion; Dunford Kelly. Choice of crossover frequency; James John F. Fox. Jan. 36. Feb. 38, Mar. 42. Moir. Apr. 22. Design of the wide-range ultra-compact RECORDING—TAPE ENCLOSURES Regal speaker system; Robert C. Avedon, Converting the Revere or Wollensak re- Calculation chart for vented cabinets; Vic- Jack E. Burchfield, and Wayne Kooy. corders to stereo; Joseph F. Dundovic. tor Brociner. Nov. 22. Mar. 22. Feb. 24. Design of the wide-range ultra-compact Hi-fi for lo-do; S. C. Lucas. Aug. 50. How many leads for the tape recorder? Regal speaker system; Robert C. Avedon, Hi-fi speaker enclosure damping materials; Herman Burstein. Jun. 28. Jack E. Burchfield, and Wayne Kooy. James A. Huff, Jr. Aug. 26. Incorporating tape into the audio system; Mar. 22. High-fidelity performance from small Herman Burstein. Sep. 32. Hi-fi for lo-do; S. G. Lucas. Aug. 50. speakers; Charles F. Mahler, Jr. Dec. 22. Kinds of tape; Herman Burstein. Dec. 32. Hi-fi speaker enclosure damping materials; Loudspeaker distortion due to the Doppler Microphones for recording; Herman Bur- James A. Huff, Jr. Aug. 26. effect; Virginia Ret linger. Jul. 28. stein. Oct. 32. New high fidelity loudspeaker enclosure; New high fidelity loudspeaker enclosure. Stereo recording techniques; Richard S. W. J. D. Van Dijck. Jan. 27. W. J. D. Van Dijck. Jan. 27. Levy. Dec. 40. Realistic baas without "boom"; Bruno Realistic bass without "boom;" Bruno Stereophonic tape recorder control; R. A. Staffen. Feb. 21. Staffen. Feb. 21. Greiner. Dec. 28.

100 AUDIO • DECEMBER, 1959 Superimposed tape recording; William D. Stereo recording techniques; Richard S. TRANSISTORS Hell. Oct. 62. Levy. Dec. 40. Transistor music system using direct cou- Tape recorder accessories; Herman Bur- Stereo without bankruptcy; Arthur W. pling; Richard S. Burwen. Aug. 21. stein. Nov. 32. Sear, Feb. 44. Transistorized band-pass filter; Charles R. TW/PA2—a comprehensive tape preampli- Stereophonic tape recorder control; R. A, Miller. Oct. 24. fier; Arthur W. Wayne. Jun. 17. Greiner. Dec. 28. Transistorized hi-fl preamplifier; Ernest What kind of record-level indicator? Her- "Trimensional" speaker system; Victor Severin. Dec. 48. man Burstein. Jul. 30. Brociner. Jun. 21. Tranisistorized microphone preamplifier - What kind of tape machine for your audio Two more ears; M. David Weisberg. Jun. Horace E. West. Nov. 50. system? Herman Burstein. May 30. 24. Tranisistorized remote-broadcast amplifier; What to look for in a tape recorder. Her- Universal stereo control center; Francis A. C. M. Edmonds, Jan. 24. man Burstein. Aug. 32. Gicca. Nov. 19. What about stereo multiplexing and mat- TUBES STANDARDS rixing? Norman H. Crownurst. Sep. 26. Figure of merit for audio output tubes- Standard methods of measurements for Robert Mitchell. Nov. 40. amplifiers—IHFM-A-200. Oct. 26. SYSTEMS Standard methods of measurements for All for once, once for all; Edwin F. Wir- TUNERS tuners—IHFM-T-100. May 42. Jun. 48. sing. Sep. 21. FM band reception in fringe areas; W. N STEREO Defense and the hi-fi bachelors; C. H. Coffey. Jul. 19. Compatible stereophonic sound system; Malmstedt. Oct. 46, Nov. 29. FM commercial eliminator for fringe areas; Floyd K. Becker. May 17. Double-duty disc-hop consolette; John Ronald L. Ives. Oct. 21. Continuously variable stereo dimension Whitacre. Feb. 30. Heterodyne FM multiplex adapter; W. B. control; Peter A. Stark. Jul. 22. Orgon and hi-fi system in unique combina- Bernard. Dec. 50. Converting the Revere or Wollensak re- tion; R. G. Sohlberg. Jun. 36. Low noise AM tuner uses triode Input; corders to stereo; Joseph F. Dundovic. Simultaneous design; William G. Dilley, Charles H. Chandler and Allen R. Green- Feb. 24. Oct. 51. leaf. Sept. 19. Heterodyne FM multiplex adapter; W. B. Sound distribution at the Brussels exhibi- Negative-supply outboard codan; Ronald Bernard. Dec. 50. tion ; A. V. J. Martin. Feb. 26. L. Ives. May 22. Moving-magnet stereo; Herbert Horowitz. Transistor music system using direct cou- Standard methods of measurements for May 19. pling; Richard S. Burwen. Aug. 21. tuners—IHFM-T-100. May 42, June 48. Simple single-cabinet corner speaker. C. G. McProud. Jan. 19. TRANSFORMERS WORKSHOP Speaker phasing with an oscilloscope; Bob Transformer distortion; Dunford Kelly. New York's audio workshop; Sidney E. Tripp. May 10. Feb. 38, Mar. 42. Norinsky. Mar. 34.

AUDIO • DECEMBER, 1959 101 1960

AMPLIFIERS Pickering 380 stereo cartridge; June Ribbon microphone for high-quality The anode follower; Charles Boegli. 46 recording and reproduction; M. L. Dec. 19 Scott Model 299 stereo amplifier; Mar. Gayford. July 23 Audio amplifier design; Amperex staff. 46 Use of polyester films in microphone edited by David Saslaw. Jan. 26, Feb. Sherwood S-4400 stereo preamp and design; Alexis Badmaieff. June 28 36 basic add-on amplifier; Apr. 40 Audio power requirements and statis- Shure M232 and M236 phono arms; PATENTS tics; C. Nicholas Pryor. Dec. 46 Nov. 62 Sony Superscope tape recorder, Model Discoveries and patentable inventions; Aural zero null—for stereo balancing; Albert Woodruff Gray. Oct. 46 Leonard Feldman. Feb. 24 CS-300; Dec. 58 Sony Superscope tape deck, Model 262- "Unclean Hands" forfeit patent protec- "Circuit Sentry" protects output tubes; tion; Albert Woodruff Gray. Jan. 32 J. Levitsky. Sept. 28 D; Dec. 60 Sony wireless microphone; May 44 Universal feedback amplifier circuit; Tandberg Model 6 tape recorder; Nov. PHONOGRAPH EQUIPMENT Arnold J. Kauder. Jan. 19 60, Dec. 60 Notes 011 the cathodyne phase splitter; Determination of tracking angle in Albert Preisman. Apr. 22 Transistronics TEC-25 transistorized pickup arm design; Niel Malan. Feb. stereo amplifier; July 38 28 BOOK REVIEW Uher "Stereo Record III" tape re- Graphical solution to the tracking corder; Feb. 74 problem; W. B. Bernard. Sept. 24 "Sound in the Theatre," Harold Burris- Viking Stereo Compact tape recorder; Unique push-pull stereo magnet it- Meyer and Vincent Mallory. Jan. 78 Oct. 54 phono pickup; E. R. Madsen. Oct. 40 BROADCASTING FANTASY and FICTION POWER SUPPLIES Test-level tapes aid program repro- I married a Hi-Fi addict; Alice Brooks. duction; Jay C. Abbott. Nov. 28 Sept. 26 Adjustable power supply; John P. Dictionary of modern engineering us- Wentworth. Mar. 19 CIRCUIT THEORY age; Daniel R. Butterly. Oct. 26 Silicon diode in audio equipment; L. H. Dalzell. July 19 The anode follower; Charles Boegli. Those crazy mixed-up currents; Almus Pruitt. Apr. 24 Dec. 19 PREAMPLIFIERS The pro and con-vention; Leo F. Gael- ler. Dec. 30 FILTERS Audio amplifier design; Amperex staff, Those crazy mixed-up currents; Almus Variable low-pass filter; Richard S. edited by David Saslaw. Jan. 26, Pruitt. Apr. 24 Burwen. May 28 Feb. 36 Transistorized stereo phono preamp; COMPONENTS HUM W. B. Bernard. June 19 Transistorized stereo control unit; Output transformers; James Moir. Feb. Hum chasing is engineering? Norman Richard Y. Moss. Oct. 19 30, Mar. 34 H. Crowhurst. Dec. 26 Silicon diode in audio equipment; L. B. Dalzell. July 19 LOUDSPEAKERS PSYCHOACOUSTICS Variable low-pass filter; Richard S. Acoustic matrixing—a basis for new Burwen. May 28 Acoustic matrixing—a basis for new loudspeaker developments; Norman loudspeaker developments; Norman II. Crowhurst. Nov. 19 CROSSOVER NETWORKS H. Crowhurst. Nov. 19 Audio power requirements and statis- Musical scale as an engineering tool; Electrical crossover design; Norman tics; C. Nicholas Pryor. Dec. 46 D. E. Johnson. Sept. 23 H. Crowhurst. Sept. 19 Bi-phonic coupler, Model 440; Abra- Second thoughts on stereo; Norman ham Cohen. Mar. 20 H. Crowhurst. Feb. 19 EQUIPMENT PROFILES What's a good loudspeaker? L. G. Bost- Electronic crossover design; Norman wick. Jan. 22 Altex Monterey and Monterey Jr. Loud- H. Crowhurst. Sept. 19 Linearity of acoustic-suspension speak- speakers; May 44 RADIO RECEPTION Connoisseur F2S turntable; Sept. 44 ers; Edgar M. Villchur. Jan. 24 Dynakit Mk. IV amplifier; Oct. 56 More on the air spring and the ultra- Space diversity techniques improve FM Dynakit stereo preamp; July 36 compact loudspeaker; Robert C. Ave- reception; Daniel von Recklinghau- EICO HF-89 power amplifier; Sept. 42 don. June 22 sen ami Martin L. Borish. Nov. 48 EMI Stereoscope amplifier; June 46 New design chart for bass-reflex en- closures; R. D. Herlocker. Apr. 19 Fisher FM-100 tuner; Oct. 54 RECORDING, DISC Garrard SPG3 stylus force gauge; Nov. Polystyrene foam loudspeaker cones; 62 P. B. Williams and James F. Novak. Variable pitch recording system; Tom Harman-Kardon Citation I stereo pre- May 23 H. Jones. Dec. 24 amp; Feb. 52 Series-parallel speaker array; Charles Harman-Kardon Citation II power F. Mahler, Jr. Nov. 54 RECORDING, MAGNETIC amp; Jan. 44 What's a good loudspeaker? L. G. Bost- wick. Jan. 22 Converting the Grundig to stereo; Wil- Harman-Kardon Citation IV stereo liam G. Dilley. May 38 preamp; Dec. 54 1.02 cubic feet and 45 cps; R. Sequerra. 7 Aug. 20 1 /8 - ips magnetic recording system for Harman-Kardon Citation V power stereo music; Dr. P. C. Goldmark. amp; Dec. 54 Dr. C. D. Mee, J. D. Goodell, and Homewood Industries speaker cabinet MEASUREMENTS Dr. W. P. Guckenburg. May 19 kit; Sept. 44 Junk-box FM alignment unit; Allen R. Test-level tapes aid program reproduc- Knight-Kit Deluxe stereo tuner; June Greenleaf and Charles H. Chandler. tion; Jay C. Abbott. Nov. 28 42 Dec. 23 Knight-Kit Deluxe 20/20 amplifier, June 44 Tape Guide Lafayette KT-250 stereo amplifier; Oct. MICROPHONES Checking frequency response, equaliza- 51 Microphone calibration; Daniel P. tion, and azimuth; Herman Burstein. Madison-Fielding Model 440 stereo re- Peters. Aug. 19 Sept. 30 ceiver; May 46 New microphone has unique directiv- Checking other aspects of perform- PACO 40-watt stereo amplifier; Apr. 42 ity; Harold S. Mawby. Apr. 26 ance; Herman Burstein. Oct. 28

96 AUDIO • DECEMBER, 1960 Distortion in tape recording; May 32, STEREO REPRODUCTION Greiner. Nov. 22, Dec. 36 June 36 Aural zero null—for stereo balancing; Start with mono—build up to stereo; Equalization; Herman Burstein. Aug. Leonard Feldman. Feb. 24 C. F. Barton. Aug. 22 28 Converting the Grundig to stereo; Wil- Improving the signal-to-noise ratio; Herman Burstein. Jan. 34, Feb. 33 liam G. Dilley. May 38 TRANSFORMERS Maintaining frequency response in re- Second thoughts on stereo; Norman H. Output transformers; James; Moir. Feb. corders ; Herman Burstein. Mar. 28, Crowhurst. Feb. 19 30, Mar. 34 Apr. 30 SYSTEMS More about tape heads; Herman Bur- stein. July 28 Be professional—rack mount; William TRANSISTORS Stereo considerations. Herman Bur- G. Dilley. Nov. 42 Transistorized stereo phono preamp; stein. Nov. 32 Development of a tailored sound sys- W. B. Bernard. June 19 Tape's future; Herman Burstein. Dec. tem; Fred Gordon. July 26 Transistorized stereo control unit; 32 Engineer's high fidelity system; R. A. Richard Y. Moss. Oct. 19

AUDIO • DECEMBER, 1960 97 1961

AMPLIFIERS Goodmans "Alpha" speaker system; An FM-stereo adapter - the GE Sys- May. tem; Antal Csicsatka and Robert M. Amplifiers with positive and negative Gray 208-S/16 professional phono arm; Linz. June 24. feedback; Charles P. Boegli. Apr. 18. Oct. 62. FM-multiplex stereo adapter; Daniel Another power amplifier! R. A. Greiner. Harman-Kardon Citation III tuner kit; R. von Recklinghausen. June 21. Sept. 19. Jan. 38. Product detector for FM-stereo; Fred Feedback techniques in low-level am- Jensen TF-3 loudspeaker system; July L. Mergner. Aug. 23. plifiers; Donald L. Shirer. May 19. 38. Synchronous oscillator FM-stereo Stereo-plus-center to two recording Korting 158S tape recorder; Sept. 58. adapter; Leonard Feldman. July 25, channels; Harold Reed. Nov. 28. Lafayette KT-550 power amplifier kit; Time—division approach to FM-stereo; Switching mono to stereo, to stereo plus June 44. Carl G. Eilers. Aug. 20. center; Harold Reed. Sept. 50. Lafayette KT-650 FM-tuner kit; Oct. What hath FCC wrought? David Sas- Triode operation of KT88's; Robert M. 59. law. June 18. Voss and Robert Ellis. Mar. 30. Vacuum-tube OTL amplifier; M. W. P. Lafayette RK120 miniature tape re- corder; Mar. 40. LOUDSPEAKERS Strandberg. Dec. 18. Luxor "Magnefon" MP410A tape re- corder; Dec. 50. Common-bass stereo speaker system; BOOK REVIEW Marantz Model 7 stereo preamp; Apr. Francis F. Chen. Nov. 19. "Noise Reduction," Leo L. Beranek, 48. Hanging hi-fi system; Harold C. Man- editor. June 68. Miracord Studio H turntable-changer; gels. Dec. 46. Sept. 56. Line Radiator; R. J. Pawlowski. July BROADCASTING Neshaminy Jan-Kit 41 speaker system 1ft. kit; Mar. 40. Loudspeaker design; Norman H. Crow- Low-cost stereo conversion for studio Neumann DST stereo cartridge; June hurst. Feb. 36. console; C. G. McProud. Nov. 44. 46. Loudspeaker magnet design; Norman Neumann PA2a turntable; June 46. H. Crowhurst. Sept. 44. CABINETRY Norelco "Continental 200" tape re- Maximum fun, medium fi, minimum A case for the custom console; F. H. corder; Nov. 62. cost; L. F. Goeller. Apr. 38. Jackson. Feb. 18. Ortofon SMG-212 phono ami and SPU/ #4, 80 pounds, a Super-8, and the shim GT stereo cartridge; Dec. 56. method; John L. Grauer. Jan. 19. COMPUTERS Paco RT-45PA stereo tuner kit; Mar. 38. Performance of series-parallel speaker "Realistic" Model 210 stereo power am- arrays; James F. Novak. Sept. 23. Computers in audio design; R. G. plifier kit; Dec. 52. "Reflection Coupler" gives stereo Buscher. I, Feb. 22; II, Mar. 22. Roberts Model 990 tape recorder; July spread; Leon J. Knize. June 30. 36. Submarine sonics; Victor L. Brociner. ENCLOSURES Sargent-Rayment SR-8000 stereo tuner- July 22. Maximum fun. medium fi. minimum preamp; Feb. 48. To phase or not to phase; R. A. Snape. cost; L. F. Goeller. Apr. 38. Sargent-Rayment SR-202 reverberation July 32. #4, 80 pounds, a Super-8. and the shim unit; Feb. 48. method; John L. Grauer. Jan. 19. Schober "Autotuner" organ tuner kit; MUSICAL INSTRUMENTS Dec. 58. Electronic organ tuning; H. D. Her- EQUALIZATION Scott LT-10 FM tuner kit; Feb. 54. locker. Dec. 30. Scott S-2 loudspeaker system; Oct. 60. The electronic organ—high fidelity mu- Interconversions of various equalization Sherwood S-2200B AM-FM stereo terminology; Kenneth Betsh. Mar. 19. sical instrument. David Wolkov. tuner; Apr. 46. Nov. 35. Equipment failure alarms; Allan M. Shure M212 and M216 Studio Dynetic Ferres. Dec. 42. stereo cartridge and arm; Feb. 50. Sonotone S2 ceramic stereo cartridge; PATENTS EQUIPMENT PROFILES Oct. 62. Loss of patent by prior use or sale; Sony TFM-121A transistorized portable Audio Dynamics ADC-1 cartridge; Albert Woodruff Gray. Oct. 50. AM-FM receiver; July 38. Patent applications and the taint of May 52. Thorens TD-124 turntable; Dec. 54. Altec 838, 845 loudspeakers; Apr. 52. public use; Albert Woodruff Gray; University Classic II loudspeaker sys- Mar. 34. Astatic "Cantata" cartridge 45D; Sept. tem; Nov. 64. 62. Viking "76 Compact" tape recorder; POWER SUPPLIES Bogen RP-40A AM-FM stereo receiver; June 48. Oct. 60. Weathers K-834 2-speed turntable and Regulate that voltage; William G. Crosby R80 AM-FM stereo receiver; pickup system; Apr. 50. Dilley. Jan. 28. June 48. Dual 1006-Custom record changer; Oct. 64. FANTASY AND FICTION PREAMPLIFIERS Dynatuner FM-1 FM tuner; July 34. Confessions of a high-fidelity widow; Designing a transistorized preamp; R. EICO ST-40 stereo amplifier; May 50. Christopher Fay. May 24. J. Bosselaers. Jan. 24. EICO ST-96 FM-AM stereo tuner; One step at a time; Burt Hines. Sept. Sept. 60. 54. PSYCHOACOUSTICS Electro-Voice Patrician 700 and Stereon 200 speakers; Jan. 39. Ersatz stereo unlimited; C. H. Malm- Empire "Troubador" turntable system; FEEDBACK stedt. Feb. 20. Nov. 62. Amplifiers with positive and negative How high is fi? George Fletcher Cooper. Ercona "Nordic I" loudspeaker; Feb. feedback; Charles P. Boegli. Apr. 18. May 40. 56. Feedback techniques in low-level am- "Sineward" distortion in high fidelity Fairchild 440-2 turntable; Feb. 52. plifiers; Donald L. Shirer. May 19. ampliflers; John W. Campbell. Nov. Fairchild 510 "Compander"; Nov. 66. 52. Fisher FM-200 FM tuner; May 46. FM-STEREO Speaker power; Paul W. Klipsch. Oct. Fisher X-1000 stereo amplifier; Sept. 60. 54. Fisher XP-4 loudspeaker system; June Filters for FM-stereo; Norman H. Stereo misconceptions; James C. Cun- 42. Crowhurst. Aug. 26. ningham; Sept. 38. Garrard Type A record changer; May Signal sampling for FM stereo; R. To phase or not to phase; E. A. Snape. 48. Shottenfeld and S. Abilock. Dec. 22. July 32.

88 AUDIO • DECEMBER, 1961 The indispensable engineer; Norman REVERBERATION To phase or not to phase? E. A. Snape, H. Crowhurst. May 36. Artificial reverberation; Fred L. Merg- July 32. ner. Apr. 28. What hath FCC wrought? David Sas- RECORDING, MAGNETIC law. June 18. STEREO Characteristics of tape noise; William SYSTEMS B. Snow. Feb. 26. Filters for FM-stereo; Norman H. "Fidelimatic" tape recording system; Crowhurst. Aug. 26. Low-cost stereo conversion Cor studio John Whitacre. Oct. 19. Signal sampling for FM stereo; R. console. C. G. McProud. Nov. 44. Tape copying—home style; R. A. Joss, Shottenfeld and S. Abilock. Dec. 22. A unique motel installation; Bob Dec. 35. FM-stereo adapter —the GE System; Kampf. Mar. 20. Tape indexing; Jerry Lerner. Jan. 22. Antal Csicsatka and Robert M. Linz. June 24. Understanding the tape oscillator; Her- TEST EQUIPMENT man Bui-stein and Henry C. Foliate. FM-Multiplex stereo adapter; Daniel Feb. 28. R. von Recklinghausen. June 21. FM sweep alignment unit—austerity Product detector for FM-stereo; Fred model; Allen R. Greenleaf. Oct. 42. L. Mergner. Aug. 23. RECORDING TECHNIQUES Synchronous oscillator FM-stereo More about recording perspective; Wil- adapter; Leonard Feldman. July 25. TRANSISTORS liam G. Dilley. July 28. Stereo misconceptions; James C. Cun- Designing a transistorized preamp; R. Recording perspective; William G. ningham. Sept. 38. J. Bosselaers. Jan. 24. Dilley. Apr. 32. Switching mono to stereo, to stereo plus A feel for transistors; L. F. Goeller. Stage sound; Richard S. Levy. May 26. center; Harold Reed. Sept. 50. Oct. 35. Stereo-plus-center to two recording Time-division approach to FM stereo; Transistor protector; George Fletcher channels; Harold Reed. Nov. 28. Carl G. Eilers. Aug. 20. Cooper. Dec. 38.

AUDIO • DECEMBER, 1961 89 1962

AMPLIFIERS Leak "Sandwich" loudspeaker. June 36. LOUDSPEAKERS Mark-Q-Matic recorder/slide projector Feedback—head cook and bottle washer! synchronizer, Model MQM-1. Apr 44. Another word on multiple speakers; John Norman H. Crowhurst. Jan 40. Omega Model 1600 transistorized ampli- W. Ward. Dec 19. High Fidelity with transistors; George fier. Mar 44. Thirty pounds of Magnet and an 18-tnch Fletcher Cooper. May 22. Permoflux headphones, models B-DHS-28, cone; S. Robert Russell. July 19. High-quality, low-power stereo amplifier; -17, HS-8. July 32. Joseph Giovanelli. July 23. Pickering stereo cartridge, Model U38-AT. MEASUREMENTS High-quality transistorized stereo pream- June 38. Audio measuring equipment; Mannie plifier; Erhard Aschinger. I, Nov 30; Pilot Model 602M FM-stereo receiver. Horowitz. Jan 19. II, Dec 36. Jan 44. Evaluating signal-to-noise ratio; Herman High-stability feedback amplifier; Arnold Pioneer Model SE-1 headphones. July 33. Burnstein. Apr. 26. J. Kauder. Oct 18. Rek-O-Kut Autopoise kit. Feb 48. The frequency-response specification; Measuring and matching tape playback H. H. Scott LK-48 stereo amplifier kit. Mannie Horowitz. Mar 24. and microphone amplifiers; Mannie Apr 40. Measuring and matching the phono equal- Horowitz. Sept 42. H. H. Scott LT-110 FM-stereo tuner kit. ization curve; Mannie Horowitz. Aug Power supply with protection; George Apr 42. 24. Fletcher Cooper. June 27. H. H. Scott Model S-3 speaker system. Stereophonic test record for evaluating Reduction of feedthrough in audio Mar 44. systems; B. B. Bauer. G. Sioles, A. switching; R. D. Herlocker. Feb. 28. Sharpe "Live Tone" headphones. July 33. Schwartz, A. Gust. Feb 18. Series Feedback; George Fletcher Cooper. Sherwood Model SR-3 loudspeaker sys- Test equipment roundup; David Saslaw. Dec. 34. tem. Apr 44. Jan 23. Taillight transistor-protector; Norman Shure-SME phono arm. Nov 64. Kramer. Sept 48. Shure Model M33-5 stereo cartridge. Nov MIXERS 66. The transistor amplifier; George Fletcher A condenser microphone mixer; William Cooper. Feb 23. Telefunken Magnetophone 97 tape re- corder. Jan 44. G. Dilley. Oct 48. The transistor amplifier, economy model; High-quality stereophonic mixer; Robert George Fletcher Cooper. Apr 24. Telex Model HPD53A headphones. July 33. Gerbracht. Mar 19. Transistor output-stage response; George Thorens Model TD-135 turntable and arm. Fletcher Cooper. Oct 62. Sept 50. MOTORS Transistorized 200-watt stereo amplifier; Transis-Tronics FM-15MX stereo tuner. Richard S. Burwen. Nov 40. Apr 47. Electronic speed control for hysteresis- Weathers "66" turntable and pickup sys- synchronous motors; Harold W. Wiebe, tem. Oct 78. Apr 20. ATTENUATORS A 125.5-db 1-megacycle audio attenuator; FANTASY MUSICAL INSTRUMENTS Weaver Dodge. Dec 23. Single-speaker stereo, L. H. Garner; Electronic organ tone generators; D. Apr 18. Wolkov. I, Feb 34; II, Mar 30. BLINDNESS and Technology; Joseph Extending the usefulness of the Schober Giovanelli. Sept 68. FEEDBACK Autotuner; Winthrop S. Pike. Oct 68. The Hamograph, a new approach to elec- Feedback—head cook and bottle washer! tronic music; J. W. Berridge. Oct 23. CONTROLS Norman H. Crowhurst. Jan 40. Light-actuated gain control; William G. Series Feedback; George Fletcher Cooper. PHONO REPRODUCTION Dilley, Sept 38. Dec 34. Measuring and matching the phono equal- EQUIPMENT PROFILES FM TUNERS ization curve; Mannie Horowitz. Aug 24. New turntable-arm design; Edgar Vill- ADC Pritchard phono arm. Sept 52. Transistorized FM front ends; C. R. Gray chur. I, Sept 19; II, Oct 34. AKG Model K-50 headphones. July 33. and T. C. Lawson. Aug 19. Phono curve data for Indolent engineers; Dual TG12SK tape recorder. Dec 42. How to align multiplex adapters; H. Bruno Staffen and Johan van Leer. EICO RP-100 stereo tape deck kit. July Heinz. June 18. Sept 46. 34. Filterless method for the detection of FM- Setting the stage for opera; R. Katz. Electro-Voice Sentry II loudspeaker. Oct stereo signals; Theodore Bially. Jan 35. June 43. 80. Vertical tracking angle—a source of IM EMI Model DLS-529 loudspeaker. Sept 52. HEADPHONE control center for mon- distortion; B. R. Madsen. Nov. 21. Fisher KX-200 stereo amplifier kit. aural, diotic, and binaural listening; Mar 40. Robert J. Larson and John M. Eargle. POWER SUPPLY with protection; Fisher KM-60 FM-stereo tuner kit. Nov 55. George Fletcher Cooper. June 27. Mar 40. HI-FI SHOWS—Audio visits Paris for PRODUCT PREVIEW SECTION; Au- Fisher Model FM-1000 FM tuner. Oct 76. two shows; C. G. McProud, Apr. 32. gust issue. Harman-Kardon stereo tuner amplifier. TA-5000X. July 49. HISTORICAL PSYCHOACOUSTICS Harman-Kardon Citation A transistorized preamplifier. Oct 75. Anecdotal history of stereo; Russel J. Effect of phase shift on hearing; R. Klein Harman-Kardon Citation MA FM-stereo Tinkham. May 35. and J. Tributsch. July 36. adapter. Feb 46. 15 years of AUDIO; C. G. McProud. May Prelude for the we 11-tempered clavichord, 19. not well tempered; Harold Tornheim. Heathkit Model AD-22 stereo tape re- Oct 42. corder. Nov 62. The state of the art; Norman H. Crow- Heathkit Model IO-21 oscilloscope. Mar 43. hurst. May 6. Isotone "Eroica" loudspeaker. Feb 48. RECORDING, DISC Knight-Kit a.c. vacuum-tube voltmeter, LAW Inner-groove distortion; R. S. Oakley, Jr. June 32. 83YU608. June 38. Essentials in the protection of trade se- Knight-Kit KX-60 50-watt transistorized crets; Albert Woodruff Gray. Apr 23. Stereophonic test record for evaluating amplifier. Sept 54. systems; B. B. Bauer, G. Sioles, A. Koss Model SP-3 headphones. July 32. LEAKAGE Inductance—a useful circuit Schwartz, A. Gust. Feb 18. Lafayette Model KT-174 vacuum-tube component; Norman H. Crowhurst. Vertical tracking angle—a source of IM voltmeter kit. Dec 46. Dec 24. distortion; E. R. Madsen. Nov 21.

78 AUDIO • DECEMBER, 1962 RECORDING MAGNETIC RELAYS Power supply with protection; George A condenser microphone mixer; William Use of d.c. relays in home audio systems; Fletcher Cooper. June 27. G. Dilley. Oct 48. Francis F. Chen. Sept 27. Taillight transistor-protector; Norman Evaluating signal-to-noise ratio; Her- Kramer. Sept 48. man Burstein. Apr. 26. The transistor amplifier; George Fletcher TEST EQUIPMENT ROUNDUP; David Cooper. Feb 23. High-quality stereophonic mixer; Robert Saslaw. Jan 23. Gerbracht. Mar 19. The transistor amplifier, economy model; Let's talk about tape synchronization; George Fletcher Cooper. Apr 24. Hal Magargle. Nov 25. TRANSISTORS Transistor output-stage response; George Measuring and matching tape playback High fidelity with transistors; George Fletcher Cooper. Oct 62. and microphone amplifiers; Mannie Fletcher Cooper, May 22. Transistorized FM front ends; C. R. Gray Horowitz. Sept 42. High-quality transistorized stereo pream- and T. C. Lawson. Aug 19. Professional tape reversing mechanism; plifier; Erhard Aschinger. I, Nov 30; Transistorized 200-watt stereo amplifier; North C. Ham, June 23. II, Dec 36. Richard S. Burwen. Nov 40.

AUDIO • DECEMBER, 1962 79 1963

AMPLIFIERS Fisher XP4A loudspeaker system; May 42. GENERAL Class D amplifiers; George Fletcher Freeman model 660 portable tape re- The definition hassle—an approach to Cooper. June 24. corder; Nov 52. Class D amplifiers—a closer look George high fidelity standards; C. G. McProud. Garrard automatic turntables—Model A, Aug 25. Fletcher Cooper. I, July 24; II, Aug 23. AT-6, Autoslim/P; May 40. Design of solid-state stereo power ampli- Hi-Fi and Electronics in .Japan; C. G. Harman-Kardon "Citation A" transistor- McProud. Mar 41. fier with silicon transistors; Marshall ized stereo preamp kit; Apr 48. R. Myers, Jr. and Morley D. Kahn. Jan Heathkit transistorized stereo amplifier, 21. model AA-21; June 44. LAW High-quality transistorized stereo pream- Heathkit transistor tester, model IM-30; plifier; Erhard Aschinger. III, Jan 35; Knowledge and skills available upon re- Dec 38. employment; Albert Woodruff Gray. IV, Feb 39; V, Mar 34. (Began Nov. Heathkit (Thomas) transistorized elec- May 34. 1963) tronic organ, model GD-232; Oct 44. High-quality transistorized tape recorder Kenwood AM, FM, and FM-stereo re- LOUDSPEAKERS amplifier; Lee Beeder. May 17. ceiver, model KW-40; Apr 46. The matched load; George Fletcher Knight-Kit d.c. to 5-mc laboratory oscil- Crossover design; Norman H. Crowhurst. Cooper. Nov 30. I, Sept 26; II, Oct 26. Remote control with light; William G. loscope, model KG2000; Sept 60. Knight-Kit stereo record/play tape re- Fresh approach to compact speakers; Dilley. Nov 24. corder model KP-70; May 38. William Hecht. Mar 30. This business of heat sinks; Ronald L. Korting stereo tape recorder, model 3000; Full-range electrostatic speaker; Rolf Ives. Mar 26. Dec 38. Rennvald. June 17. Transistorized stereo microphone mixer; Open baffle parallel-series array; R. S. Peter A. Stark. Oct 19. Lafayette 200-watt transistorized stereo power amplifier, model LA-250; Nov 54. Oakley, Jr. Dec 30. Leak "Stereo 60" power amplifier; Jan 42. AUDIO CLUBS Neat stereo tonearm model GA-17; Jan MEASUREMENTS Blueprint for an audio club; Charles K. 46. Checking frequency-compensating cir- Doty, Sr. Mar 40. Neat stereo cartridge, model VS1000D; cuits; Mannie Horowitz. May 26. Jan 44. Harmonic distortion—tests and measure- BOOK REVIEW Norelco "Continental 100" tape recorder; ments; Mannie Horowitz. Oct 38. Music, Acoustics, and Architecture; Leo Feb 50. Testing amplifier response with an oscil- L. Beranek. Jan 4. Pickering stereo cartridges U38AT, and loscope; Herbert Malamud. June 34. U38ATG with "Safe V-Guard" styli; BROADCAST EQUIPMENT Mar 54. Pilot FM-stereo tuner model 780; May 42. MICROPHONES The Auditioneer; John Whitacre. Dec 24. Revere/3M stereo tape cartridge system, Professional condenser microphone; R. model M-2; July 30. Williamson. July 17. COLOR ORGANS H. H. Scott FM-stereo tuner, model 350B; Transistorized stereo microphone mixer; Wall-projection color organ; Morris Dol- July 30. Peter A. Stark. Oct 19. lens. I, Mar 19; II Apr 23. H. H. Scott FM-stereo broadcast monitor tuner, model 4310; Sept 55. MUSICAL INSTRUMENTS CROSSOVERS Sennheiser condenser microphone, model MKH-104; Oct 50. All-electronic method for tuning organs Crossover design; Norman H. Crowhurst. Sherwood FM-stereo tuner, model S3000V; and pianos; A. M. Seybold. I, Feb 28; I, Sept 26; II, Oct 26. Dec 44. II, May 20. Shure Model M/99 series "Gard-A-Matic" Electronic simulation of organ sounds; DISTORTION stereo cartridges; June 51. Norman C. Pickering. June 21. Harmonic distortion—tests and measure- Shure Model M222 Studio Dynetic arm Organs and organ music; Winthrop S. ments; Mannie Horowitz. Oct 38. and cartridge; Dec 59. Pike. I, Oct 23; II, Nov 40. Sony "Newscaster" tape recorder porta- ble, model EM-l; Feb 48. NOISE EQUIPMENT PROFILES Tandberg tape recorder, model 64; Mar 50; recheck, May 43, Suppressing noise in audio systems; Her- Acoustic Research needle force gauge; Tannoy 10" Dual Concentric "Monitor" man Burstein. Nov 46. Jan 46. loudspeaker; Sept 56. Acoustic Research 2-speed turntable; Uher "8000 Royal" stereo tape recorder; PRODUCT PREVIEW SECTION Apr 48. Sept 58. August issue. Antronics electronic FM antenna, model Weathers Universal tonearm, model MT- MA-44; Nov 56. 66; June 45. Audio Dynamics Model ADC-18 speaker RECORDING, DISC system; June 46. FANTASY 15-deg. vertical angle—a key to better Benjamin/Elac model 322 stereo car- stereo sound; B. B. Bauer. Nov 21. tridge; July 42. Knobs—the shame of it all; Don Nort. Aug 24. 78-rpm stereo test record; Allan R. Kes- Dual automatic turntable, model 1009; kinen. Apr 32. Nov 73. FM-STEREO Vertical tracking distortion in practice; Dynaco "Stereo 35" basic power amplifier; Duane H. Cooper. Sept 40. Nov 52. Alignment and adjustment of FM-stereo Vertical tracking improvements in stereo EICO Model ST97 FM-stereo tuner, ST70 tuners and adapters; C. G. McProud. recording; B. B. Bauer. Feb 19. stereo amplifier, ST84 stereo preamp; Jan 26. Oct 48. FM-stereo reception; Jack Beever. Jan Empire record playing system, model 498; 19. RECORDING, MAGNETIC Oct 46. FM-tuner characteristics and their rela- High-quality transistorized tape recorder Fisher stereo receiver, model 500C; Dec tive importance; Daniel R. von Reck- amplifier; Lee Beeder. May 17. 44. linghausen. I, Aug 19; II, Sept 44. Fisher model SA1000 150-watt stereo Mobile FM-stereo reception; North C. REMOTE CONTROL power amplifier; Sept 54. Ham. Sept 21. Fisher model K1000 150-watt power am- Receivers with transistors plus tubes; Remote control with light; William G. plifier kit; Sept 54. William Cornell. Feb 21. Dilley. Nov 24.

66 AUDIO • DECEMBER, 1963 SOUND REINFORCEMENT Another transistorized voltmeter—and High-quality transistorized stereo pream- Controlling sound-reinforcement systems; how to use it. C. G. McProud. Apr 42. plifier; Erhard Aschinger. III, Jan 35; David L. Klepper. Dec 19. IV, Feb 39; V, Mar 34. (Began Nov. Sound reinforcement at Philharmonic TRANSISTORS 1963) Hall; David Saslaw. Apr 38. High-quality transistorized tape recorder Class D amplifiers; George Fletcher amplifier; Lee Beeder. May 17. Sound reinforcement at the Ziegfeld; Cooper. June 24. George Schimmel. July 21. Receiver with transistors plus tubes; Class D amplifiers—a closer look; George William Cornell. Feb 21. TEST EQUIPMENT Fletcher Cooper. I, July 24; II, Aug 23. Transistorized stereo microphone mixer; Alignment and adjustment of FM-stereo Design or solid-slate stereo amplifier with Peter A. Stark. Oct 19. tuners and adapters; C. G. McProud. silicon transistors; Marshall R. Myers, Transistorized audio voltmeter; Alex M. Jan 26. Jr. and Morley D. Kahn. Jan 21. Schotz. Apr 19. Transistorized audio voltmeter; Alex M. This business of heat sinks; Ronald L. Another transistorized voltmeter—and Schotz. Apr 19. Ives. Mar 26. how to use it. C. G. McProud. Apr 42.

AUDIO • DECEMBER, 1963 67 1964

ACOUSTICS Electro-Voice Speaker System Model Six; Central-versus-Distributed Loudspeaker A "Purist" Tackles Room Acoustics; J. April p. 42. Systems; David L. Klepper, June p. 19. W. Linsley. April p. 19. Empire Stereo Pickup Model 880-P; Techniques of Making Live-versus-Re- April p. 63. corded Comparisons; Edgar Villchur. AMPLIFIERS Fisher 3-Way Speaker System Model Oct. p. 34. A Direct Approach to Q-Point Stabiliza- XP-10; March p. 54. Telstar-Shaped Electrostatic Speakers; tion; Frank W. Brands. April p. 44. Furn-a-Kit Equipment Cabinet Kit 2600 R. J. Matthys. Part I, May p. 19; Part A Houseful of Hi PI; Herbert M. Honig. Series; March p. 56. II, June p. 23. March p. 42. Goodmans Loudspeaker System Maxi- Ton-and-a-Quarter of Sound; Walter A New Triode Amplifier; Robert M. Voss mus 1; Nov. p. 66. Wysoczanski. Jan. p. 19. and Robert Ellis. July p. 22. Harman-Kardon 1000 Series Tuner and Transient Performance of Loudspeaker All Silicon Tape Playback Preamps and Amplifier F1000T, A1000T; June p. 37. Dividing Networks; Robert M. Mitchell. Recording Circuit; John Abajian and Harman-Kardon Transistorized Stereo Jan. p. 24. Dwight V. Jones. Oct. p. 22. Receiver Model SR-900; Oct. p. 88. Class-D for Efficiency; Peter A. Stark. Heathkit Regulated Power Supply Model MICROPHONES Part I, June p. 23; Part II, July p. 24; IP-20; Sept. p. 48. A Ribbon Microphone for Stereo; E. R. Part III, Aug. p. 23. James B. Lansing "Olympus" Speaker Madsen. April p. 26. Intermodulation Distortion—Pros, Cons, System Model C-50; June p. 37. Magnecord Stereo Tape Recorder Model and Hows; Mannie Horowitz, Jan. p. 38. MUSICAL INSTRUMENTS Low-Cost High-Performance Volume 1024-HF; Nov. p. 66. Compressor; S. S. Andrews, Dec. p. 19. McIntosh FM-Stereo Tuner Model MR67; An All-Electronic Method for Tuning Or- Power; Mannie Horowitz, March p. 25. Feb. p. 38. gans and Pianos; A. M. Seybold. Part The El Cheapo 2-30; R. R. Moore, Nov. OKI Stereo Tape Recorder Model 555; III, March p. 22. (Parts I and II ap- p. 19. Oct. p. 90. peared in 1963.) PML Condenser Microphone Model EC-61; An Electronic Organ Design; Winthrop CROSSOVERS March p. 56. S. Pike. Part I, Oct. p. 19; Part II, Transient Performance of Loudspeaker RCA Ribbon Microphone Model SK-46; Nov. p. 24. Dividing Networks; Robert M. Mitchell. July p. 34. Electronic Organ Tone Coloring. D. Wol- Jan. p. 24. H. H. Scott FM-Stereo Tuner-Amplifier kov Dec. p. 25. Model 340-B; Jan. p. 45. CURVE PLOTTING H. H. Scott Solid-State FM-Stereo Tuner RECORDING A Note on Curve Plotting; Virginia Ret- Model 312; July p. 32. A Note on Curve Plotting; Virginia Ret- tinger. Sept. p. 24. Shure Stereo Cartridge V-15, May p. 48. tinger. Sept. p. 24. Stanton Stereotable System, Model 800B A Re-Recording Filter; H. E. Riekels, DISTORTION Jan. p. 44. Jr. Feb. p. 35. Bad Sound Prom Great Composers; Thorens Automatic Turntable TD-224; All Silicon Tape Playback Preamps and Lewis A- Harlow. Feb. p. 21. May p. 48. Recording Circuit; John Abajian and Intermodulation Distortion—Pros, Cons, Uher Portable Recorder Model 4000 Dwight V. Jones. Oct. p. 22. and Hows; Mannie Horowitz. Jan. p. Report-S; April p. 38. Low-Cost High-Performance Volume 38. Weathers Compressor; S. S. Andrews, Dec. p. 19. Reducing Distortion in Stereo Phono- Master Timer; William G. Dilley. Feb. p. graph Systems; J. G. Woodward, Part FANTASY 19. I, Feb. p. 23; Part II, March p. 28. Basic Questions and Answers; Christo- Recording a Community Music Festival; Transient Generators for Audio Testing; pher Faye. Feb. p. 36. Gil Daney. March p. 19. John L. Grauer, Sept. p. 22. Hi Fi and the British; Alan Watling. Recording the Muse on Tape; Arthur C. June p. 53. Matthews, Dec. p. 21. EQUIPMENT PROFILES Hi Fi and the British: Privacy; Alan Reducing Distortion in Stereo Phonograph Acoustic Research Watling. Sept, p. 38. Systems; J. G. Woodward. Part I, Feb. ADC Loudspeaker, Brentwood 303A; Nov. p. 23; Part II, March p. 28. p. 68. FM Stereo Disc Recording Comes of Age; ADC Stereo Pickup, Point Four; March A Solid-State Ultra-Linear Wideband Duane H. Cooper. Jan. p. 30. p. 52. FM Demodulator; Ralph Glasgal. May Techniques of making Live-versus- Re- Altec Lansing Stereo Amplifier Model p. 25. corded Comparisons; Edgar Villchur. 360A; April p. 40, A Transistor FM Squelch; K. E. Springer. Oct. p. 34. Ampex Stereo Tape Recorder Model 2070; March p. 21. The Elliptical Stylus; J. Kogen and R. Sept. p. 46. Tuner Alignment for Quality FM Recep- Samson. May p. 33. Barker & Williamson Audio Oscillator tion; Arthur L. Boynton. July p. 19. Tape Recorders and the Copyright Law; Model 210; July p. 32. Eric Darmstaedter. May p. 50. Barker & Williamson Distortion and A.C. GENERAL The RCA Victor "Dynagroove" System; Volt Meter Model 410; Sept. p. 46. Bad Sound From Great Composers; Lewis Harry F. Olson. Part I, Nov. p. 22; Part Bell Solid-State Receiver Imperial 1000; A. Harlow. Feb. p. 21. II, Dec. p. 44. May p. 46. IITRI; R & D for the Tape Industry; Bogen Robert Angus. Sept. p. 26. RELAYS Cipher Denon 8000 Tape Recorder; Jan. Automatic Speaker Connector; Ronald L. p. 46. LAW Clark Stereo Headphones Model 100; Ives. Sept. p. 19. Feb. p. 40. Freedom of Speech, Sound Trucks and the Very Low Voltage Relay Operation. Ron- Concord Tape Recorder Model 884; March Constitution; Albert Woodruff Gray. ald L. Ives. Jan. p. 36. p. 50. April p. 32. Dynaco—B & O Stereo Ribbon Micro- Tape Recorders and the Copyright Law; REMOTE CONTROL phone Model 200; June p. 37. Eric Darmstaedter. May p. 50. Automatic Speaker Connector; Ronald L. Dynaco Stereo Control Amplifier SCA-35; Ives. Sept. p. 19. March p. 52. LOUDSPEAKERS Controlling Sound-Reinforcement Systems EICO IM-Harmonic Distortion Meter An Engineer Looks at Exponential Automatically; David Klepper. April p. Model 902W; Feb. p. 40. Horns; W. A. Dodge. Nov. p. 30. 22. Electro-Voice Microphone Model 644; Oct. Automatic Speaker Connector; Ronald L. Very Low Voltage Relay Operation. Ron- p. 112. Ives. Sept. p. 19. ald L. Ives. Jan. p. 36.

76 AUDIO • DECEMBER, 1964 SOUND REINFORCEMENT TEST EQUIPMENT A Solid-State Ultra-Linear Wideband FM A Basic Course In Commercial Sound; Intermodulation Distortion—Pros, Cons, Demodulator; Ralph Glasgal. May p. 25. A Transistor FM Squelch; K. E. Springer. Norman Crowhurst. Chap. I, April p. and Hows; Mannie Horowitz. Jan. p. 38. 33; Chap. II, May p. 41; Chap. III, June March p. 21. Power; Mannie Horowitz. March p. 25. p. 33; Chap. IV, July p. 28; Chap. V, All Silicon Tape Playback Preamps and Transient Generators for Audio Testing; Aug. p. 19; Chap. VI, Sept. p. 35; Chap. Recording Circuit; John Abajian and John L. Grauer. Sept. p. 22. VII, Oct. p. 75; Chap. VIII, Nov. p. 43; Dwight V. Jones. Oct. p. 22. Chap. IX, Dec. p. 38. Central-versus-Distributed Loudspeaker Class-D for Efficiency; Peter A. Stark. Part I, June p. 23; Part II, July p. 24; Systems; David L. Klepper. June p. 19. TRANSISTORS Controlling Sound-Reinforcement Sys- Part III, Aug. p. 23. tems Automatically; David Klepper. A Direct Approach to Q-Point Stabiliza- The El Cheapo 2-30; R. R. Moore. Nov. p. April p. 22. tion; Frank W. Brands. April p. 44, 19.

AUDIO • DECEMBER, 1964 77 1965

AMPLIFIERS Mattes SSP-200 Solid-State Power Am- Are Tapes Long Lived? John T. Mullin. A La Pi-Mode, George Fletcher Cooper. plifier; Nov. p. 53 June p. 19 March p. 19 McIntosh MR-71 FM-Stereo Tuner; Feb. Converting the Uher 4000-S to Stereo Calibrated Stereo Control Unit, Raphael p. 42 Playback, C. G. McProud. Oct. p. 19 F. Ehat. Part 1, April p. 30; part 2, McIntosh C-24 Solid-State Stereo Pre- Tape Duplication at Ampex. Ed Zdobin- May p. 26; part 3, June p. 23; part 4, amplifier; Feb. p. 44 ski. Dec. p. 22 July p. 22 Network Spark Injector; Feb. p. 46 Languages and the Language Labora- tory, Harold D. Weiler. Dec. p. 19 Development of a Pulse Modulated Au- Neumann U-64 Condenser Microphone; dio Amp, Norman H. Crowhurst. Sept, p. 42 Microphone Amplifier and Coupling Unit Part 1, Sept. p. 19; part 2, Oct. p. 32; Oki 333 Stereo Tape Recorder; July p. for the Stereo-Modified Uher 4000-S, part 3, Nov. p. 36; part 4. Dec. p. 36 32 C. G. McProud. Nov. p. 26 Effect of Power Line Variation on Low- Perpetuum Ebner PE-34 Integrated New Tape Types, Larry Zide. Dec. p. 23 Frequency Operation of Amplifiers, Turntable; Jan. p. 34 Recording Without Microphones, Rob- George Lehsten. Feb. p. 22 Kos/Rek-O-Kut R-34 Integrated Turn- ert Hazelleaf, May p. 24 Matrixing Amplifier for 2-Channel table/arm; July p. 32 Solid-State Limiter for Tape Recording, Stereo Signals. Wayne B. Denny. Jan. Scott 260 Solid-State Amplifier; May Wayne B. Denny and James Young. p. 19 p. 32 Sept. p. 30 Portable Console for Broadcast or Dis- Scott 2300 Stereo Phono and Stereo-FM SPEAKERS AND SPEAKER cotheque, John Whitacre. May p. 19 Playback System. Dec. p. 48 SYSTEMS Simple Transistor Driver for Stereo Sherwood S-9900 Solid-State Amplifier; Acoustic Resistance Damping for Loud- Headphones, Fred D. Clapp. Aug. p. 26 Sept. p. 42 speakers, John L. Grauer. March p. 22 Transistor Output Stages, George Shure M55E Stereo Cartridge with Ellip- Bass Transfusion for Little Speakers. Fletcher Cooper. Oct. p. 58. tical Stylus; Nov. p. 69 Bill Yaeger and Roger Hull. June p. CONTROLS 21 Shure Solo-Phone Headphone Amplifier; Loudspeaker Directional Characteris- Characteristics of Shunted Potentiome- Sept p. 44 tics, David Klepper. Sept. p. 23 ters, Ronald L. Ives. Feb. p. 19 Sony/Superscope 250A Stereo Tape Re- Protecting Speakers Against Overload, EQUIPMENT PROFILES corder; Oct. p. 72 K. F. Russell. Sept. p. 36 Acoustech III Solid-State Power Ampli- Viking 96/RP 120 Stereo Tape Deck; The Wooden Monster, C. William Phil- fier; Feb. p. 48 Nov. p. 52 lips. Oct. p. 48 Altec 604E Speaker System; June p. 36 Whitecrest W-2 Speaker System; Nov. SOUND REINFORCEMENT Altec 844A Monitor Speaker System; p. 54 A Basic Course in Commercial Sound, Dec. p. 50 FM Norman Crowhurst. Chapter 10. Jan. Benjamin Stereo 200 Phono Playback A New Look at FM, Harry E. Maynard. p. 28 System; Feb. p. 48 Feb. p. 36 The Chrysler Pavilion, William R. Far- Bogen B-62 Integrated Turntable; May FUN AND FANTASY rell and David Klepper. April p. 28 p. 34 Calculus Made Difficult, Daniel R. But- Reversible Sound Systems, Abraham B. Concord R-2000 Tape Recorder; March terly. June p. 42 Cohen. June p. 30 p. 40 Hi Fi and the British: Exhibitionism, Sound at the Fair. Martin Dickstein. Dual 1010 Automatic Record Player; Alan Watling. Oct. p. 28 April p. 19 Feb. p. 42 HIGH FIDELITY SHOWS Temporary Sound Amplification Sys- tems, David Klepper. Part 1, Jan. p. EICO 250 Wideband A.C. VTVM; Dec. Hi Fi and the British: Exhibitionism, p. 48 23; part 2, Feb. p. 23 Alan Watling. Oct. p. 28 EICO 3566 Solid-State FM-Stereo Re- World's Fair Outdoor Sound System, ceiver; May p. 44 INSTALLATIONS Arthur W. Schneider. April p. 26 Empire 888-P Stereo Cartridge; Oct. p. Educated Audio System, Gerard Strang. The Vatican Pavilion, R. T. Bozak. 74 July p. 26 April p. 24 Fisher 600T Solid-State Stereo Receiver; Languages and the Language Labora- TEST EQUIPMENT March p. 39 tory, Harold D. Weiler. Dec. p. 19 Law Licensing of Television Service; Al- Putting Junkbox Meters to Work, Don- Garrard Lab 80 Automatic Turntable; bert Woodruff Gray, Oct. p. 26 ald R. Hicke. Aug. p. 22 March p. 38 MICROPHONES Solid-State Wien-Bridge Audio Oscilla- Grado Type A Stereo Cartridge; July p. tor, I. C. Zero. July p. 19 33 A "New" Ribbon Microphone, Charles P. Fisher. Aug. p. 19 TRANSISTORS Heathkit AJ43 AM/FM Stereo Tuner; Development of a Pulse Modulated Au- Jan. p. 35 The Improbable Optical Microphone, Virginia Rettinger. Sept. p. 29 dio Amp, Norman Crowhurst. Part 1, JBL SG 520 Solid-State Stereo Pream- Sept. p. 19; part 2, Oct. p. 32; part 3, MUSICAL INSTRUMENTS plifier; Jan. p. 34 Nov. p. 36; part 4, Dec. p. 36 JFD LPL-FM 10 FM Antenna; Jan. p. Shaping Electronic Organ Envelopes, D. Wolkov. Jan. p. 24 The Languad Expert Goes Solid-State, 50 George L. Augspurger. Sept. p. 32 KLH Eighteen FM-Stereo Tuner; June Special Electronic Organ Tone Sources, D. Wolkov. Feb. p. 30 Simple Transistor Driver for Stereo p. 35 Headphones, Fred D. Clapp. Aug. p. KLH Sixteen Stereo Amplifier; June Sound Reproducers for Electronic Or- 26 gans, D. Wolkov. March p. 30 p. 35 Solid-State Limiter for Tape Recording, KSC-3 360-deg. Speaker System; Oct. PHONO CARTRIDGES Wayne B. Denny and James Young. p. 74 Evaluating the Performance of Hi-Fi Sept. p. 30 Kenwood KW-550 FM-Stereo Tuner; Stereo Phono Cartridges, James H. Transistor Output Stages — Distortion July p. 30 Kogen. Nov. p. 21 and Driver Impedance, George Fletch- Knight-Kit KG-870 Transistor Stereo RECORDING er Cooper. Oct. p. 58 Amplifier; March p. 51 Application of Stereo Dual-Track Tech- Transresistance Method for Approxi- Marantz Model 10B FM-Stereo Tuner; niques to Lecture Recording, C. B. mating Linear Transistor Circuit Op- April p. 32 Hagen. Nov. p. 19 eration. R. R. Moore. July p. 25

68 AUDIO • DECEMBER, 1965 AMPLIFIERS DISC PLAYBACK Stanton 581EL Stereo Cartridge. Nov. An Amplifier for the Armchair Listen- The Servo Groove Tracker, Arthur G. p. 41 er, R. E. Baird. Nov. p. 38 Johnson. May p. 21 Syncron S-10 Microphone. June p. 34 High Input Resistance with Stability, Trackability, James H. Kogen. Nov. Thorens TD 124 II and TD 150 Turn- L. D. Smithey. March p. 28 p. 19; Dec. p. 26 tables. June p. 36 High-Quality Phono Preamp with Tracking Error Determinization and Uher 9000 Stereo Tape Deck. April FET's, William A. Rheinfelder. Nov. Minimization, T. J. Celi. July p. 26 p. 44 p. 26 University Mediteranean Speaker Sys- King-Size Quarter Horsepower Stereo EQUIPMENT PROFILES tem, July p. 36 Amplifier, Robert M. Voss and Acoustech XI-P/M Integrated Ampli- UTC Maximus 7 Speaker System. Jan. Robert Kllis. Oct. p. 23 fier Kit. July p. 35 p. 48 Power Amplifier Overload Character- ADC Six Hundred Stereo Receiver. Viking 880 Stereo Tape Recorder. July istics and their Importance, R. A. March p. 76 p. 34 Greiner, June p. 19 BSR McDonald 500 Automatic Turn- Push-Pull Drive from a Split-Load table. Nov. p. 42 EXHIBITIONS Stage, George Fletcher Cooper. Jan. Dual 1019 Automatic Turntable. May AES Convention Papers. Sept. p. 30 p. 19 p. 48 London Show Section. March p. 33 Empire Grenadier 8000P Speaker Sys- N. Y. High Fidelity Music Show List AUDIO MEASUREMENT tem. April p. 44 of Exhibitors. Oct. p. 100 Audio Measurements Course, Norman Euphonics CK-15-LS Cartridge Sys- Report on the London Show, C. G. H. Crowhurst, Part I, Jan. p. 28; tem. June p. 35 McProud. July p. 24 part 2, Feb. p. 54; part 3, March Fisher TFM-1000 FM Stereo Tuner. EXPERIMENTATION AND p. 66; part 4, April p. 26; part 5, Oct. p. 12 THEORY May p. 23; part 6 July p. 28; part Grado Model B Stereo Cartridge. Can We Hear Phase? Yes! No!, R. A. 7, Aug. p. 20; part 8, Sept. p. 26; March p. 76 part 9, Oct. p. 90; part 10, Nov. p. Harman-Kardon SC-440 Compact Sys- Greiner. Oct. p. 54 The Finite Approach to the Infinite, 52; part 11, Dec. p. 28 tem. Jan. p. 63 Norman H. Crowhurst. June p. 25 Simulated 'Live vs. Recorded' Test Hartely 220MS Holton Sr. Speaker Intimations of Irresponsibility: Cir- for Loudspeakers, Edgar A. Vill- System. Feb. p. 52 cuits for Speculation. George Fletch- chur. Nov. p. 33 Heathkit AR-14 Stereo Receiver. er Cooper. April p. 36 Test Instruments and the Audio Buff, March p. 84 Herman Burstein. Feb. p. 23 Heathkit GR-25 Color TV Set. May The Servo Groove Tracker, Arthur G. Johnson. May p. 21 Test Tape for Checking Head Position, p. 46 C. G. McProud. Feb. p. 46 Heathkit IG-112 FM-Stereo Generator. FM-STEREO CONSTRUCTION PROJECTS Feb. p. 48 An FM-Stereo Antenna Primer, Wal- Heathkit IO-14 Oscilloscope. Sept. p. Adjustable SCR Speaker Protection, ter G. Wohleking, Part 1, July p. Ronald L. Ives. Aug. p. 19 38 19; part 2, Aug. p. 24; part 3, Sept. A Capacitor Microphone System Us- JBL SA 600 Integrated Amplifier. p. 21; part 4 Oct. p. 28 ing Semiconductor Devices. Robert Sept. p. 38 B. Schulein. Oct. p. 104 KLH Twenty Compact System. Oct. FUN AND FANTASY High-Quality Phono Preamp with p. 127 Hi-Fi and the British-Salesmanship, FET's, William A. Rheinfelder. Nov. Knight-kit KG 415 Stereo Tape Re- Alan Watling. March p. 53 p. 26 corder. Jan. p. 48 Warning for Wives in Stereophonic King-Size Quarter Horsepower Stereo Marantz SLT-12 Integrated Turntable. Sound, Carolyn Howard Johnson. Amplifier, Robert M. Voss and Sept. p. 36 April p. 23 Robert Ellis. Oct. p. 23 Marantz 7T Stereo Preamplifier. June Putting Junkbox Meters to Work—II, p. 34 INSTALLATION AND DECOR Donald R. Hicke. Jan. p. 22 Ortofon S-15 Stereo Cartridge. Oct. Room Design for Stereo Music, Solid-State Flutter Meter, Arthur E. p. 14 Michael Rettinger. April p. 24 Gladfelter. Part 1, March p. 19; part Pilot R 1100 Stereo Receiver. April Sound Activated Color Display, Colin 2, April p. 19; part 3, May p. 39; p. 42 Shakespeare. Sept. p. 17 part 4, June p. 38 Pioneer ER-420 Stereo Receiver. Dec. Sound Actuated Color Display, Colin p. 38. LAW Shakespeare. Sept. p. 17 Revox G 36 Tape Recorder. Feb. p. 50 Patent Infringement Forfeited by De- Test Tape for Checking Head Posi- Scott 342 Receiver and S-8 Speakers. lay, Albert Woodruff Gray. Aug. p. tion, C. G. McProud. Feb. p. 46 May p. 52 26 Sherwood S-8800 FM Stereo Receiver. CONTROLS Nov. p. 40 MICROPHONES High-Quality Phono Preamp with Sonotone RM-1F Speaker System kit. A Capacitor Microphone System Us- FET's, William A. Rheinfelter. Nov. Jan. p. 50 ing Semiconductor Devices, Robert p. 26 Sony 2010 VTR and VCK-2000 Cam- B. Schulein. Oct. p. 104 A Switch-Type Tone Control, Marshall era. May p. 50; Amplifiers, turn- An Improved Omnidirectional Micro- K. Steele. June p. 24 table, arm, and cartridge. Dec. p. 34 phone, Harold S. Mawby. Jan. p. 38

74 AUDIO • DECEMBER, 1966 MUSIC Loudspeakers, Edgar A. Villchur. Solid-State Flutter Meter, Arthur E. Can We Hear Phase? Yes! No!, R. A. Nov. p. 33 Gladfelter. Part 1, March p. 19; part Greiner. Oct. p. 54 TAPE RECORDING 2, April p. 19; part 3, May p. 39; An Integrated Complex-Tone Gen- Christmas Is For Tape Recorders, C. part 4, June p. 38 erator for Electronic Music, Robert G. McProud. Dec. p. 22 Baird, R. E. C. Ehle. Oct. p. 81 The Early Flutter Spoils the Record- An Amplifier for the Armchair SOUND REINFORCEMENT ing, Lewis A. Harlowe. Dec. p. 19 Listener. Nov. p. 38 Evaluation of Artificial Reverberation Tape Recorder Compendium. Dec. p. 51 Burstein, Herman to Conventional Sound Installations, The Why's and How's of Tape Splic- Test Instruments and the Audio George S. Lehsten. Feb. p. 44; May ing, Joel Tall. Dec. p. 24 Buff. Feb. p. 23 p. 19 Celi, T. J, TEST EQUIPMENT Tracking Error Determinization and SPEAKERS Audio Test Equipment Compendium. Minimization. July p. 26 Adjustable SCR Speaker Protection, Feb. p. 27 Cooper, George Fletcher Ronald L. Ives. Aug. p. 19 Putting Junkbox Meters to Work—II, Push-PulI Drive from a Split-Load Simulated 'Live vs. Recorded' Test for Donald R. Hicke. Jan. p. 22 Stage. Jan. p. 19

AUDIO • DECEMBER, 1966 75 EXHIBITIONS Thirty-Third Convention, Audio Engineer- ing Society, List of Exhibitors, Technical Papers. Oct. p. 98 New York High Fidelity Music Show, Semi- nar Schedule. Oct. p. 115 Here Come the '68s, (N. Y. Hi Fi Show) Arthur P. Salsberg, Oct. p. 25

FM TUNERS ABZ's of FM: Tuner Measurements, Leo- nard Feldman. Oct. p. 58 ABZ's of FM: Secondary Tuner Measure- AMPLIFIERS Concertone A.C./Battery-Powered Tape ments, Leonard Feldman. Nov. p. 32 Build a Mixer-Meter Amplifier, Hal Ma- Recorder, Model 770. Sept. p. 48 ABZ's of FM: FM Stereo Measurements; gargle. Dec. p. 23 Dynaco Solid-State Power Amplifier, Leonard Feldman. Dec. p. 52 Model Stereo 120, Apr. p. 50 Third Generation Hi-Fi, Lawrence W. Fish Dynaco PAS-3X Stereo Preamplifier, Apr. Jr. Jan. p. 26 BROADCASTING p. 50 Musical Broadcasting in the 19th century, HEADPHONES Dynaco PAT-4 Stereo Preamplifier, Dec. Elliott Sivowich. June, p. 19 p. 60 Forum on Headphones and Microphones, EICO Multiplex Generator, Model 342. Arthur P. Salsberg. Pt. 1, July, p. 20; Pt. 2, CONSTRUCTION PROJECTS Jan. p. 35 Aug. p. 17 Build a Mixer-Meter Amplifier, Hal Ma- Elac Stereo Cartridge, Model STS-322. Nov. HISTORICAL gargle. Dec. p. 23 p. 76 Musical Broadcasting in the 19th Century, Build a Solid-State Stereo Limiter, Wayne Electro-Voice Dynamic Microphones, B. Denny. Sept. p. 25 Models 635A, 667A, and 636. Oct. p. 84 Elliott Sivowich. June, p. 19 20 Years of AUDIO. C. G. McProud. May, Convert your Audio Analyzer to Stereo, Fisher XP-55 Speaker System. July, p. 38 p. 25 William B. Eraser. Nov. p. 26 Heathkit "Magnecord" Tape Recorder, Model AD-16. July, p. 36 End-Table Loudspeaker, C. G. McProud. HI-FI INDUSTRY April, p. 19 Heathkit Solid-State Receiver, Model What the Next 20 Years Will Bring, Indus- Transistorized Square- and Triangular- AR-15. May, p. 76 try Executives. May, p. 44 Wave Generator, Winthrop S. Pike. IMC Boxer Fan. Feb. p. 58 June, p. 24 Kenwood Stereo Receiver, Model TK-55. INTEGRATED CIRCUITS Nov. p. 50 Third Generation Hi-Fi. Lawrence W. Fish, Knight-Kit Integrated Amplifier and Stereo CONTROLS Jr. Jan. p. 26 Tuner, Models KG-895 and KG-790, Feb. Professional Tone Controls, Arthur C. p. 56 Davis and Don Davis. Pt. 1, Feb. p. 27; LIMITERS Knight-Kit Triggered Scope, Model KG- Pt. 2, Mar. p. 36; Pt. 3, May, p. 60 Build a Solid-State Stereo Limiter, Wayne 2100. Nov. p. 56 B. Denny. Sept. p. 25 Leak "Mini-Sandwich" Loudspeaker Sys- DECIBELS tem, June, p. 50 LOUDSPEAKERS Get to Know the dB Better, George H. R. Marantz Stereo Amplifier, Model 15. Jan. End-Table Loudspeaker, C. G. McProud. O'Donnell. June, p. 44 p. 32; Addendum, Mar. p. 50 Apr. p. 19 Miracord Automatic Turntable, Model Inside an Electrostatic Speaker. Sept. 32 DECOR PW-50H. Sept. p. 46 Loudspeaker Compendium, Apr. p. 38 Decorating with Stereo Hi-Fi. July, p. 35 Norelco "Carry Corder," Model 150. June, Forum on Loudspeakers, Larry Zide. Apr. Sound and Decor Styles, Jerry Joseph. Nov. p. 49 p. 28 p. 21 Ortofon Stereo Phono Cartridge. Model Loudspeaker Directional Characteristics, SL-15, Sept. p. 44 David L. Klepper. Apr. p. 22 DIRECTORIES Pioneer Stereo Receiver, Model SX-1000 TA. June, p. 46 MEASUREMENTS Annual Product Preview. Aug. p. 24 H. H. Scott Speaker System, Model S-11. Audio Measurements Course, Norman H. Loudspeaker Compendium. Apr. p. 38 Mar. p. 50 Crowhurst. Pt. 12, Jan. p. 36; Pt. 13, Feb. Record Player Compendium. Mar. p. 26 Sharpe Stereo Headphones, Model PRO- p. 36; Pt. 14, Mar. p. 44; Pt. 15, Apr. p. Tape Recorder Directory. Dec. p. 34 660, July, p. 38 44; Pt. 16, May, p. 44; Pt. 17, June, p. 34; Sherwood FM Stereo/AM Receiver, Model Pt. 18, July, p. 26 ELECTRONIC MUSICAL INSTRUMENTS S-7600-FET. Oct. p. 80 Convert Your Audio Analyzer to Stereo, A Twelve-Tone Tuner, James B. Hays. Jan. Shure Microphone Mixer, Model M68. William B. Fraser. Nov. p. 26 p. 19 June, p. 50 FM Stereo Measurements; Leonard Feld- Shure Stereo Cartridge, Model V-15 II. Feb. man. Dec. p. 52 EQUIPMENT PROFILES p. 58 FM Tuner Measurements, Leonard Feld- AKG Two Way Cardioid Microphone, Superex Stereo Headphones, Model ST- man. Oct. p. 58 Model D-200E, Dec. p. 83 PRO. May, p. 80 Secondary FM Tuner Measurements; Leo- Altec A7-500 Loudspeaker System. Jan. p. University Compact Speaker System, nard Feldman, Nov. p. 32 34 Model "Ultra-D." May, p. 80 Transistorized Square- and Triangular- Beyer Stereo Headphones, Model 48S, Apr. Wharfedale Compact Speaker System, Wave Generator; Winthrop S. Pike. p. 51 Model W-20. Mar. p. 52 June, p. 24 AUDIO • DECEMBER 1967 87 MICROPHONES Microphones for Sound Reinforcement Systems, Arthur C. Davis and Don Davis. Dec. p. 64

MUSIC PERSONALITIES Jazz in Greenwich Village, Larry Zide. Feb. p. 42 Robert Preston says: I was raised on Red Seal Records, Larry Zide. May, p. 38 Jimmy Rushing and Dickie Wells Reunite, Bertram Stanleigh. Oct. p. 76 Isaac Stern and his Music, Leonard Silke. June, p. 30

MUSIC & RECORDINGS Electronic Organ "Demo" Records, Ed- ward T. Canby. Nov. p. 60 Jimmy Rushing and Dickie Wells Reunite, Bertram Stanleigh. Oct. p. 76 King of Instruments, Edward T. Canby. Dec. p. 70 The Mothers, Bertram Stanleigh. Nov. p. 66 Pop Meet Classic, Edward T. Canby. Oct. p. 64 Sounds of the South, Bertram Stanleigh, Dec. p. 76

RECORD PLAYERS/CARTRIDGES Program Your Listening for Up to Thirty Hours, C. G. McProud. Mar. p. 32 Record Player Compendium. Mar. p. 26 Skating Force—Mountain or Molehill? R. S. Oakley, Jr. Mar. p. 40 Skating-Force Phenomenon, James H. Ko- gen. Pt. 1, Oct. p. 53; Pt. 2, Nov. p. 38 Tracking Capability of Phonograph Pick- ups, J. G. Woodward. Mar. p. 19

SOUND REINFORCEMENT Microphones for Sound Reinforcement Systems, Arthur C. Davis and Don Davis. Pt. 1. Dec. p. 80 Sound Reinforcement in Concert Halls, Martin L. Borish. Sept. p. 30

SYSTEMS Decorating with Stereo Hi-Fi. July, p. 35 Installation Profile. Dec. p. 32 Youth's Pre-College Project. Jan. p. 28

TAPE RECORDING Automobile Tape Cartridges, Larry Zide. May, p. 66 Build a Mixer-Meter Amplifier, Hal Ma- gargle, Dec. p. 23 Build a Solid-State Stereo Limiter, Wayne B. Denny. Sept. p. 25 New NAB Magnetic Tape Standards, Her- man Burstein. Pt. 1, July, p. 17; Pt. 2, Aug. p. 22; Pt. 3, Sept. p. 38; Pt. 4, Oct. p. 92; Pt. 5, Nov. p. 44; Pt. 6, Dec. p. 48 Tape Recorder Directory. Dec. p. 34 Why Look-Alike Recorders Can Be $$$ Apart, Herman Burstein. Dec. p. 26

AUDIO • DECEMBER 1967 88 Sound & Decor Styles (a series) Feb. p. 6; H. H. Scott 2504 and 2505 Compact Stereo Apr. p. 36; May p. 61; July p. 32; Oct. Music Systems. Mar. p. 54. p. 42; Dec. p. 68. H. H. Scott LT-112-B-1 Stereo FM Tuner Kit. Nov. p. 72. DIRECTORIES Shure SM-60 Dynamic Microphone. Sept. Product Preview, Annual. August issue. p. 49. ACOUSTICS Professional Directory. Nov. p. 38. Shure M75-E Stereo Phono Carl ridge. Feb. A Creek Theatre (circa 1968), Don Davis. Speaker System Buying Guide. Mar. p. 42. p. 44. Sept. p. 30. Shure 330 Super Cardioid Ribbon Micro- Small Music Rooms, Michael Rellinger. ELECTRONIC ORGANS phone. Sept. p. 50. Sony/Superscope 230 Tape Recorder. May, Oct. p. 25. How Organs Work, Norman H. Crowhurst, p. 38. Altec Acousta Voicing, Don Davis. Nov. Sept. p. 26. Sony Corp. of America STR-6060FW AM/ 21; Dec. p. 36. How They Produce Dfferent Sounds, Nor- FM Stereo Receiver. Dec. p. 44. man H. Crowhurst, Oct. p. 52. AMPLIFIERS Sony Corp. of America TA-2000 Stereo How Constructed, Norman H. Crowhurst, Preamplifier. Dec. p. 46. Electronic Crossover Networks Revisited, Nov. p. 76. Stanton 681EE Stereo Phono Cartridge. C. G. McProud. July p. 21. Voicing Methods, Norman H. Crowhurst, Dec. p. 48. How to Build a Three-Channel Electronic Dec. p. 64. Crossover. C. G. McProud. Feb. p. 19. Switchcraft 307TR Portable Mixer. Feb. p. 50. Letters and corrections, Apr. p. 10. EQUIPMENT PROFILES How Negative Feedback Affects Amplifier TEAC A-4010S Stereo Tape Recorder. Dec. AKG Stereo Headphones. July, p. 40. Performance, Norman H. Crowhurst. I, p. 50. AR Integrated Stereo Amplifier. Apr. p. 54. Feb. p. 38; II, Mar. p. 30; III, Apr. p. 42; Telex Amplitwin Stereo Headphone/Am- AR Speaker System, AR-3a. Oct. p. 72. IV, May p. 30; V, June p. 32. plifier. Feb. p. 46. Altec 711B FM Stereo Receiver. Sept. p. 40. The Truth About Stereo Power Amplifier Telex Serenata Stereo Headphones. Feb. Ampex Micro 85 Stereo Cassette Recorder/ Ratings. Ralph Hartz and Fred Kamp. p. 48. Player. Mar. p. 60. Apr. p. 19. Telex-Viking 433 Stereo Tape Deck. Nov. BSR McDonald 600/M44E "Total Turn- p. 68. table." June, p. 40. BACKGROUND MUSIC University Studio-Pro 120 FM Stereo Re- Benjamin 1050 Compact Music System. ceiver. Jan. p. 40. SCA—Private Music On Public FM, Leonard Oct. p. 74. Feldman. Sept. p. 23. Bose 901 Speaker Systems [see "Behind the EXHIBITIONS How to Build a Background Music Adap- Scenes," Dec. p. 10.] Audio Engineering Society—33rd Conven- ter, Leonard Feldman. Oct. p. 34. Crown CX-822 Professional Tape Recorder. tion Highlights. Jan. p. 30. 34th Conven- Apr. p. 48. tion Highlights. July, p. 45. 34th Con- BASIC HI-FI Dual 1015 Automatic Turntable. Sept. p. vention Program. Apr. p. 60. 35th Expand Your Hi-Fi Reference Library. Dec. 46. Convention Program. Oct. p. 86. p. 18. Electro-Voice RE-15 Dynamic Cardioid Mi- New York Hi-Fi Show Preview. Oct. p. 26. 20 Most-often-asked Questions on Hi-Fi, crophone. Mar. p. 64. San Francisco Hi-Fi Show Preview. Nov. Leonard Feldman. Dec. p. 28. Electro-Voice Five-A Loudspeaker System. p. 26. Sept. p. 42. BROADCAST STUDIOS Elpa PE-2020 Automatic Turntable. May, FM ABZ's of, (Series by Leonard Feldman) Audio Testing in, Fred L. Zellner. Nov. p. p. 42. Co-channel interference, Jan. p. 14; Ad- 54. Erath Models I and VI Loudspeaker Sys- jacent-channel interference, Feb. p. 52; tems. Nov. p. 60. Noise, Mar. p. 26; FM broadcasting, Apr. CONSTRUCTION Fisher 200T FM Stereo Receiver. July, p. 36. p. 32; Antennas, May, p. 16; R.F. front Build A Presence Control, Al Fanning. Dec. Garrard SL95 Automatic Turntable. Apr. p. ends, June, p. 30; Front ends go solid p. 60. 57. slate, July, p. 52; Local oscillators and Build a Background Music Adapter, Leon- Hammond M100 Condenser Microphones. mixers, Aug. p. 84; the i.f. amplifier, ard Feldman. Oct. p. 34. Jan. p. 46. Sept. p. 36; Limiters, Oct. p. 82; Dis- Build a Sheet-Metal Reverberator, Robert Harman-Kardon Five-Twenty FM Stereo criminators, Nov. p. 82; Ratio Detectors, Ehle. Apr. p. 28. Receiver. May, p. 34. Dec. p. 74. Custom Home Stereo Installation, Michael Heathkit TOA-67-1 Organ "Bandbox." Private Music on Public FM, Leonard J. Curry. June p. 24. July, p. 42. Feldman. Sept. p. 23. Electronic Crossover Networks Revisited, JBL SE400S "Energizer" Stereo Power Am- Build a Background Music Adapter. Leon- C. G. McProud. July p. 21. plifier. Dec. p. 54. ard Feldman. Oct. p. 34. Further Advenures of a Sound Purist, John Jensen TF-3B Bookshelf Speaker System. W. Linsley Jan. p. 19. June, p. 42. HISTORICAL Hello (Equipment) Dolly, James P. Holm. KLH Twelve Loudspeaker System. July, History of the AES, C. G. McProud. Nov. June p. 28. p. 39. p. 28. How to Build a Low-Voltage Remote On- Marantz Eighteen FM Stereo Receiver. Transistors, 20 years old. Apr. p. 38. Off Switch, L, B. Keim. Aug. p. 21. June, p. 34. How to Build a Three-Channel Electronic Panasonic RS-761S Tape Recorder Sys- HUMOR Crossover, C. C. McProud. Feb. p. 19. tem. Sept. p. 44. New/Improved Hi-Fi equipment specifica- Letters and corrections, Apr. p. 10. Pioneer SX-1500T AM/FM Stereo Receiver. tions, Rennie Corb. Aug. p. 19. Nov. p. 64. DECOR Revox 77A Stereo Tape Recorder. Oct. p. LOUDSPEAKERS Custom Home Stereo Installation, Michael 64. Commonality of Loudspeakers and Musi- J. Curry. June p. 24. Sansui 2000 AM/FM Stereo Receiver. Oct. cal Instruments, Pt. I, Anton Doschek. Eye-Fidelity, Jerry Joseph. Oct. p. 44. p. 70. Dec. p. 23.

86 AUDIO • DECEMBER 1968 Concrete Behemoth Speakers. James Fer- Buyer's Guide to Outdoor Hi-Fi-Battery- guson. Mar. p. 21. powered Tape Recorders. May, p. 23; Exotic Speakers, Al Fanning. July, p. 22. Tape Cartridges and Cassettes, May, p. How to Choose Loudspeakers, Al Fanning. 25. Mar. p. 34. Pros and Cons of Cassette Tape, Bert New Speaker System Concept, Bert Whyte. Whyte. Sept. p. 10. Dec. p. 10. Report on New Low-Speed Tape, Edward Outdoor Loudspeakers. May, p. 26. Tatnall Canby. Feb. p. 12. Protect Your Loudspeakers with Relays, State-of-the-Art of Pre-Recorded Tapes, John R. Kissinger. May, p. 28. Bert Whyte. June, p. 50. Speaker System Buying Guide. Mar. p. 42. Stereo Eight, Bert Whyte. Aug. p. 8. [Also, see "Professional Recording."] MICROPHONES Microphones for Sound Reinforcement TEST EQUIPMENT Systems, Arthur C. Davis and Don Davis, Test Equipment Sampler. July, p. 34. Part II, Jan. p. 34; III, Feb. p. 26.

MUSIC Benny Goodman rides again, Bertram Stanleigh Feb. p. 36. Boom in LP record reissues, Stuart Triff. May, p. 45. Fall Harvest, Stuart Triff. Dec. p. 78. The Cat's Meow — homage to Gerald Moore, Edward Tatnall Canby. Jan. p. 48. Dr. Bowes amateur hour, Edward Tatnall Canby. Mar. p. 24. A doctor in the movie house. Robert Sherman. Feb. p. 34. The Duke and associates, Bertram Stan- leigh. Mar. p. 74. Edison cylinder recordings on LP, Edward Tatnall Canby. Oct. p. 96. Fall Harvest, Stuart Triff. Dec. p. 78. How to be your own critic of the new synthesized music, Lewis A. Harlow. Apr. p. 24. Jazz, blues, and the siren song of lung cancer, Bertram Stanleigh. Jan. p. 54. Pearlie Mae's "Dolly," Stuart Triff. Mar. p. 76. Rossini vs. Rossini, Edward Tatnall Canby. Apr. p. 28. The Recorded "Works," Edward Tatnall Canby. Feb. p. 24. The Ultimate Charles Ives, Edward Tatnall Canby July, p. 47. The 2nd Coming of Erik Satie, Edward Tat- nall Canby. Dec. p. 80.

PROFESSIONAL RECORDING Art of the Small Recording Studio, Joseph Giovanelli. Nov. p. 50. Audio Testing in Broadcast Stations, Fred L. Zellner. Nov. p. 54. Practical Aspects of Audio Noise Reduc- tion, Ray M. Dolby, Part I, June, p. 19; II, July, p. 26. Professional Prognostications. Nov. p. 30. Russian Recording Methods, Bert Whyte. Oct. p. 12. Stereo Disc Culling, Albert B. Grundy. Jan. p. 22. The Professional Viewpoint, Bert Whyte. Nov. p. 8.

TAPE RECORDING Batteries for Tape Recorders, Walter Salm. May, p. 21. Magnetic Tapes, Al Fanning. Oct. p. 46.

AUDIO • DECEMBER 1968 87 DECODERS, FM Kenwood multi-channel integrated stereo Early multiplex decoder circuits. Leonard amplifier, Supreme 1. Nov., 70. Feldman. Oct., 60, Klipsch speaker system, Cornwall II. Jan., Modern switching circuit decoders. Leon- 56. ard Feldman. Nov., 58. Knight-Kit sweep-marker generator kit, ACOUSTICS Time-division or switching-circuit de- KG-687. Jan., 52. Acoustical matching of sound systems coders. Leonard Feldman. Sept., 24. Koss electrostatic headphones, ESP-6. and auditoriums. David L. Klepper. Feb., 48. ELECTRONIC ORGANS Nov., 36. Lafayette solid-state AM/FM stereo re- Part V, Keying methods. Jan., 60. Part VI Facts & fallacies on detailed sound sys- ceiver, LR-1500T. Jan., 50. Vibrato and tremolo. Feb., 36. Part VII, tem equalization, Don Davis. Aug., 36. Marantz speaker systems, Imperial I. Vibrato, tremolo, and percussion. Mar., Aug., 50. AMPLIFIERS 32, Part VIII, Side effects, coupling, and Marantz stereo FM tuner, Model twenty. Crossover distortion in transistor power reverberation. Apr., 64. Part IX, Con- Dec., 62. amplifiers. Janes Bongiorno. May, 26. clusion. May, 54. Norman H. Crow- NordMende FM stereo multiband re- hurst. 15-Watt amplifier on your loudspeaker ceiver, 8001/ST. Mar., 44. basket. C. G. McProud. Apr., 21. NordMende stereo tape recorder, 8001/T. Electrostatic Tweeters, Using, with tran- Layman's Guide to amplifier specifica- June, 46. sistor amplifiers. Robert C. Ehle. Apr., tions. Mar., 26. Pioneer Speaker System, Model CS-66. 23. P. A. amplifiers. Leo Sands. Aug., 26. Dec., 70. Equalization, detailed, of sound systems. Rabco servo-driven straight-line tone Don Davis. Aug., 36. Annual Directory and List of Manufactur- arm, SL-8. May, 48. ers. Sept., 28. EQUIPMENT PROFILES Sansui stereo FM/AM receiver, Model 4000, Dec., 72. ADC stereo pickup system, ADC-25. July, ANTENNAS 48. Scott AM/FM stereo receiver kit, Model An empirical study of FM antennas. Allied stereo tape deck, TD-1070. Aug., LR-88. May, 42. Leonard Feldman. Oct., 26. 52. Scott "Quadrant" speaker system, Model Q-100. Nov., 74. Altec solid-state condenser microphone AUDIO ENGINEERING SOCIETY system, M50. Aug., 56. Sennheiser stereo headphones, Model West Coast 36th Convention papers. May, Ampex stereo tape recorder. Model 1461. HD-414. Mar., 52. 32. April, 54. Shure "Hi-Track" stereo phono cartridge, West Coast Convention product sampler, Astrocom/Mariux stereo tape deck, Model M91E. Aug., 51. May, 36. 407. Dec., 64. Shure "Unidyne IV" microphone, Model Thirty-seventh Convention program. Oct., C-M Labs stereo power amplifier, Model 548, April, 60, 80. 35D. Feb., 44. Sony Superscope stereo tape deck, TC- AUDIO INSTRUMENT SAMPLER C-M Labs stereo preamplifier, Model 666D. Feb., 40. July, 38. CC-2. Feb., 46, Sony Superscope portable AC/battery- Bi-Amplifier Systems, passive crossover Concord three-head, four-track stereo powered stereo tape deck, TC-770-2. networks for. Blaine B. Kuist, Nov., 52. tape deck, Mark III. Nov., 66. May, 40. Buyers Guide to hi fi equipment, 1970, Crown dual-channel laboratory amplifier, Sony servo turntable system, PS-1800. Sept., 28. Model DC-300. Oct., 70. July, 42 Book Reviews, Dec., 8. Dual automatic turntable, Model 1212. Sony stereo FM/AM receiver, STR-6040. Chordophones, The commonality of March, 52. Oct., 66. speaker systems and musical instru- Dual automatic turntable, Model 1219. Superex stereo headphones, Model ST- ments. Anthony Doschek, Jan., 46. Dec., 67. PRO-B. Aug., 54. Dynaco speaker system, Model A-25. Tandberg stereo tape recorder, Model Classical Recording, The $$ Crunch in Oct., 73. 1241-X. Mar., 48. classical recording. Bert Whyte (Behind EICO stereo control amplifier, Cortina Telex 8-track stereo cartridge recorder/ the Scenes) May, 10. 3150. June, 40. player, 811-R. Oct., 74. Thorens electronic transcription turn- CONSTRUCTION PROJECTS EICO stereo FM tuner, Cortina 3200. table, Model TD-125. June, 44. Build a 15-W amplifier on your loud- June, 38. speaker basket. C. G. McProud. Apr., Elac stereo cartridge, STS-444E. Jan., 54. Four-Channel Sound, Special Report an. 21. Electro-Voice "Aries" loudspeaker sys- Bert Whyte. Dec., 22. Four on tape, Edward Tatnall Canby. Sept., The austere preamplifier. John L. Grauer. tem. Oct., 68. Oct., 54. Empire stereo cartridge, Model 999-VE. 27. Build an IC tone-control stage. Richard April, 58. FM, FM-STEREO TUNERS AND Crawford. Nov., 32. Fairfax bookshelf speaker, FX-100. May, RECEIVERS 50. Antennas—an empirical study of. Leonard CROSSOVER DISTORTION Fisher stereo FM/AM receiver, Model Feldman. Oct., 26. Can it be detected by ear? James Bon- 500TX, April, 50. Automatic frequency control. Leonard giorno, June, 56. Harman-Kardon speaker system, Model Feldman. Feb., 50. —in transistor power amplifiers, James HK-50. June, 50. Convenience features. Leonard Feldman. Bongiorno. May, 26. Heath bookshelf speaker system kit, AS- Dec, 58. 48. July, 44. Early multiplex decoder circuits. Leonard Crossover networks, passive, for bi- JBL speaker system, Model C60. Dec., 76. Feldman. Oct., 60. amplifier systems. Blaine B. Kuist. Nov., Jensen single-cabinet stereo speaker sys- Front-end alignment. Leonard Feldman. 52. tem, Stereo 1®. Nov., 62. May, 30.

AUDIO • DECEMBER 1969 77 Modern switching-circuit decoders. Leon- Embellished Baroque. Edward Tatnall Can- Pop recording session. John M. Woram. ard Feldman. Nov., 58. by. Dec., 80. May, 21. More on FM detection. Leonard Feldman. Four on tape. Edward Tatnall Canby. Post recording session. John M. Woram. Jan., 58. Sept., 27. June, 30. Receiver alignment. Leonard Feldman, Historical stereo. Edward Tatnall Canby. Rock and roll loudness. Bert Whyte. April, 44. July, 14. (Behind the Scenes.) Mar., 8. Stereo composite signal, The. Leonard Hpschd: Electronic music styles. Edward Tape recorder directory. Jan., 34. Feldman. Aug., 46. Tatnall Canby. Oct., 34. Tape transport maintenance. H. W. Hell- Sum and difference in transmission sys- Inside the Moog synthesizer. Robert C. yer. I, Sept., 22; II, Oct., 42; III, Nov., tems. Leonard Feldman. July, 50. Ehle. Dec., 30. 44; IV, Dec., 46. Tuning aids. Leonard Feldman. March, Moog Jazz in the garden. Bertram Stan- Why you say it. Webb Garrison. July, 56. 40. leigh. Nov., 96. RECORDING, VIDEO More electronic pop sounds. Sherwood Hi-Fi Shows—the missing N.Y. show. Directory, Jan., 44. L. Weingarten. Oct., 37. Bert Whyte (Behind the Scenes). Oct., Electronic video recording. Bert Whyte Musical glasses. Edward Tatnall Canby. 14. Behind the Scenes). Feb., 8. Apr, 16. How High the Fi? Bert Whyte. (Behind VTR recording session. Bert Whyte (Be- Orchestral music of China. Edward Tat- the Scenes.) Oct., 10. hind the Scenes). Sept., 8. nall Canby. Aug., 66. Idiophones—The commonality of speaker Revaluing the 20th Century. Edward SOUND SYSTEMS systems and musical instruments. Tatnall Canby. May, 14. Facts and fallacies of sound system equal- Anthony Doschek. Feb., 30. Rock for all ages. Sherwood L. Wein- ization. Don Davis. Aug., 36. Intermodulation Tests—a new use for garten. Nov., 92. Reinforcement systems. David L. Klepper. Norman H. Crowhurst. July, 26. 78's Live. James Quigley. June, 35. Nov., 36. LAYMAN'S GUIDES Sinatra conducts on Wilder reissue. Ber- Stereo Broadcasting, brief history of. —Amplifier and Receiver specifications. tram Stanleigh. Feb., 58. Leonard Feldman. June, 54. Soul Music panorama. Sherwood L. Mar., 26. STEREO SYSTEMS Weingarten. June, 66. —Microphone specifications. Aug., 20. Five-channel stereo at home. Ernest Switched-on rock. Edward Tatnall Canby. —Phono cartridge specifications. June, Baenninger. Mar., 21. Oct., 36. 20. Passive crossover networks for, Blaine B. Willie the Lion. Bertram Stanleigh. Jan., —Speaker system specifications. Nov., Kuist. Nov., 52. 75. 22; Dec, 28. Tape cartridges, 8-track. Bert Whyte (Be- —Tape recorder specifications. Jan., 25. MUSICAL INSTRUMENTS hind the Scenes). Jan., 10. —Tuner specifications. Feb., 21. The commonality of speaker systems and Tone control stage, build an IC. Richard musical instruments. Anthony Doschek. LOUDSPEAKERS Crawford. Nov., 32. Jan., 46. Buying guide. Apr., 26. Tuners, layman's guide to specifications. Column speakers. Victor Brociner. Aug., Phono cartridges, layman's guide to Feb., 21. 31. specifications. June, 20. Don't let speaker phasing faze you. Al Preamplifiers, the austere. John L. Grauer. Fanning. Apr., 40. Oct., 54. How to add electrostatic tweeters to Professional viewpoint—an interview transistor amplifiers. Robert C. Ehle. with Larry Scully. Bert Whyte, (Behind Apr., 23. the Scenes.) Nov., 10. Layman's guide to speaker systems. I, Public Address Amplifiers. Leo Sands. Nov., 22. II, Dec., 38. Aug., 26. Single-speaker-enclosure stereo. C. G. Receivers, layman's guide to specifica- McProud. Oct., 88. tions. Aug., 26. Manufacturers listing—names and ad- Record-playback switching. Jan., 64. dresses. Sept., 97. Metamorphosis of retail hi-fi stores. Bert Records, technical quality of. Bert Whyte (Behind the Scenes.) July, 10. Whyte, (Behind the Scenes.) June, 10. Recording and reproduction. How to MEASUREMENTS: preamplifiers. James correct turntable bounce. Donald R. Bongiorno. July, 32. Hicke. Nov., 49. Primer on sound-level meters. Bernard Katz. I, July, 22; II, Aug. 42. RECORDING, DISC Microphones, Layman's guide to speci- How disc masters are made today. R. Lee fications. Aug., 20. Hulko. Nov., 26.

MUSIC RECORDING, MAGNETIC Approaches to the modern. Edward Tat- Cross-field technique. Fritjof Brodtkarb., nall Canby. Mar., 16. Jan., 21. Best Baroque. Edward Tatnall Canby. How tape recorder bias controls fidelity. Jan., 68. Andrew H. Persoon. Feb., 24. Blues, The new. David Lyle Segal. Mar., Layman's guide to tape recorder specifi- 70. cations. Jan., 25. Compatibility at Philadelphia. Edward On-location recording. Bert Whyte (Be- Tatnall Canby. June, 14. hind the Scenes.) Apr., 8.

78 AUDIO • DECEMBER 1969 ACOUSTICS Dynaco stereo power amplifier kit, Stereo University bookshelf loudspeaker, Project The listening room. Edward Tatnall Canby. 80. Feb., 48. M. Apr., 58. Apr., 24. Electro-Voice integrated music system, VM stereo receiver, TF-10. Dec., 68. Landmark 100. Nov., 68. Elektra-Amplidyne loudspeaker equalizer, FM, FM-STEREO TUNERS AND RECEIVERS Annual Directory and list of manufactur- SE-111. June, 58. An integrated circuit FM detector. Eugene ers. Sept., 28. Empire turntable, Model 598 Troubador. T. Patronis, Jr. Feb., 44. Additions to annual product directory. Dec., 63. FM probe unit. Leonard Feldman. Nov., 52. Nov., 43. Empire stereo cartridge, 1000 ZE. Nov., 72. FM tuner alignment guide. Arthur Boyn- Epicure loudspeaker, EPI-100. May, 46. ton. I, June, 20. II, July, 20. Ferrograph tape recorder, Series Seven. AUDIO ENGINEERING SOCIETY June, 55. HI-FI SHOWS AES convention views. Jan., 68. Fisher stereo headphones, HP-100. Jan., 66. Consumer Electronic Show. July, 6. AES exhibit preview. May, 8. Garrard automatic turntable, SL-95B. Mar., Evanston High School hi-fi show. June, 12. West Coast AES convention program and 52. New York hi-fi show. Nov., 32. papers. May, 42. Harman-Kardon basic amplifier, Citation Twelve. May, 52. Headphone review. C. G. McProud. Dec., Harman-Kardon stereo FM receiver, Eight 20. Christmas buyers guide. Dec., 22. Twenty. Feb., 52. Integrated Circuits, The wonderful world Heathkit FM/AM stereo receiver, AR-29. of. Edward J. Gately, Jr., June, 36. Computer in sound reinforcement system Aug., 44. Jensen loudspeaker system, TF-25. Feb., 58. design. Don Davis. I, Aug., 20. II, Oct., LOUDSPEAKERS KLH loudspeaker system, Model 33. Dec., 24. Bass response vs. cabinet size. Victor 62. Brociner. Mar., 20. Marantz console amplifier, Model 30. Oct., Another look at damping factors. Paul W. CONSTRUCTION PROJECTS 46. Klipsch. Mar., 30. Adding a woofer to an electrostatic Marantz stereo FM/AM receiver, Model 22. Doppler distortion in loudspeakers. Roy speaker. Nathan M. Garfinkle. Mar., 26. Apr., 54. V. Childs. Aug., 26. The function generator. Norman H. Crow- Nikko stereo FM receiver, STA-501S. Mar., Choosing a loudspeaker. Mar., 24. hurst. Nov., 22. 50. Layman's guide to loudspeaker specifica- One-third octave sound-level meter. David PE turntable, Model 2018. Jan., 65. tions. Victor Brociner. III, Jan., 52. Griesinger. Dec., 28. PE turntable, Model 2040. Dec., 66. Loudspeakers—past and present. Robert Building a variable-frequency power Pickering stereo phono cartridge, XV15/ Berkovitz. Apr., 36. source. C. G. McProud. Jan., 30. 750E. Jan., 64. Another look at parallel-connected loud- Pioneer auto-reverse tape deck, T-600. speakers. Dick Crawford. Nov., 24. Mar., 58. The Mud Factor. Paul W. Klipsch. Oct., 38. dB's, A practical view of. George H. R. Pioneer reverberation amplifier, SR-202. Speaker systems directory. Mar., 32. O'Donnell. Feb., 38. June, 62. Pioneer stereo FM/AM receiver, SX-990. Manufacturers' Listing—names and ad- Jan., 60. dresses. Sept., 34. EQUIPMENT PROFILES Pioneer two-way stereo headphones, SE- Acoustic Research receiver. May, 48. 50. Feb., 58. MUSIC Acoustic Research loudspeaker system, Roberts stereo tape recorder, 420XD. Feb., Beethoven is 200! Edward Tatnall Canby. AR-5. Jan.,62. 46. Mar., 76. ADC loudspeaker system, 303AX. Jan., 64. Sherwood stereo FM/AM receiver, SEL-200. Rosemary Brown. Edward Tatnall Canby. Advent frequency balance control. May, July, 38. Nov., 28. 56. Shure stereo phono cartridge, V-15 Mark Canby the DJ—Canby at Carnegie Hall. Advent speaker system. July, 45. II, Improved. Mar., 54. Edward Tatnall Canby. July, 42. Ampex stereo cassette deck, Micro 52. Sony stereo headphones, DR-6A. Apr., 53. Getting hooked on chamber music. Rich- Apr., 60. Sony stereo power amplifier, TA-3200F. ard Freed, I, Apr., 22. II, July, 22. III, B&O stereo cartridge, Model SP 12. Oct., Nov., 62. Oct., 36. 58. Sony Superscope stereo tape deck, TC-366. Is classical music dead? Greg Morrow. Decca phono pickup system, Mk 1. June, Aug., 50. Additional comments, Oct., 59. Oct., 66. 60. Tandberg tape deck, 6000 series. July, 34. Ethnic recording. Edward Tatnall Canby. Dual turntable, Auto-Professional 1209. TEAC integrated stereo amplifier, AS-200U. Jan., 74. Oct., 54. Apr., 50. Keyboard immortals. George W. Tillett. Dynaco integrated stereo amplifier, SCA- TEAC stereo tape deck, A-1200U. Oct., 50. 80. Aug., 48. Oct., 12.

96 AUDIO • DECEMBER 1970 Subject Index, Continued

Mahler at length. Edward Tatnall Canby. Feb., 62. Moogs and Moondog. Edward Tatnall Canby. Aug., 14. Music concrete. Edward Tatnall Canby. May, 60. Have you heard Sinatra? Don Altobell. Dec., 40.

Negative Feedback. Norman H. Crowhurst. I, Feb., 22. II, Apr., 18. III, May, 34.

PUBLIC ADDRESS SYSTEMS Electronics for public address. Norman H. Crowhurst. Aug., 36. Line radiators for public address. Aug., 10.

QUADRAPHONICS Quadrisonics on the air. Leonard Feldman. Jan., 22. The QUART broadcasting system. Michael Gerzon. Sept., 26. A new quadraphonic system. David Hafler. July, 24. The four-channel disc. Bert Whyte. Jan., 10. Four-channel phones. Jon Fixler. June, 4. Quadraphonic report. April, 25. Quadraphonic News. Nov., 48.

Recording studio, The. Dr. Donald Huns- berger. June, 28.

RECORDING, MAGNETIC Cassettes and the Dolby system. Edward Tatnall Canby. May, 40. The 8-track/cassette cold war get warmer. Don Humphreys. Jan., 50. Splicing tapes and their application. An- drew H. Persoon. Jan., 28. Tape deck maintenance. H. W. Hellyer, V, April, 40. VI, Oct., 30. Tape recorder directory. Jan., 38.

RECORDING, VIDEO The ultimate disc. Edward Tatnall Canby. Dec, 59. Video on discs. Sept., 8.

SOUND AND DECOR Sound and decor. June, 42. Nov., 50.

STEREO SYSTEMS How many channels? Duane Cooper. Nov., 36. 15 channels on one pair of wires. C. C. McProud. May, 20. Stereo receiver lexicon. Leonard Feldman. I, Sept., 22. II, Oct., 20. Transient power of a stereo system. Osamu S. Goda. Feb., 26.

Synthesizer. A new electronic. Alfred Mayer. May, 28.

Transistor Oscillators. Norman H. Crow- hurst. June, 48.

AUDIO • DECEMBER 1970 97 Amplifiers: Requirements and Specifica- Phono Cartridge Survey. Feb., 36. SAE frequency equalizer, Model Mark tions. George W. Tillett. Apr., 32. Outdoor Speaker Directory. June, 26. Seven. Mar., 66. Receiver and Tuner Directory. May, 36. Sansui AM/FM stereo receiver, Model Annual Directory and list of manu- Tape Recorder Directory. Jan., 36. 2000A. Jan., 42. facturers. Sept. 22. Scott AM/FM stereo receiver, Model Additions to annual product directory. Dynamic and Electrostatic Headphones. 387. Oct., 52. Addenda, Dec., 50. Oct., 62, Nov., 54. Howard Souther. Dec., 24. Sharpe headphone control units, Models SC-1, SC-3. May, 57. Sherwood AM/FM stereo receiver, AUDIO ENGINEERING SOCIETY EQUIPMENT REVIEWS Acoustic Research FM stereo tuner. Model S-7100. Feb., 50. AES Meeting Highlights. May, 28. Sherwood FM stereo tuner, Model SEL- July, 49. Convention highlights. Behind the 300. Nov., 44. Scenes, Dec., 12. Acoustic Research loudspeaker, Model AR-2ax. May, 55. Sonic Research frequency compensator, Model Sonex 100A. June, 61. Audio Transmission Line Equalization. Advent noise reduction unit, Model 100. Soundcraftsman frequency equalizer, Buck O. Kraft. Feb., 20. Jan., 49. Annis magnetometer. May, 58. Model 20-12. Dec., 48. Stanton electrostatic headphones, Model Christmas Buying Guide. Nov., 10. Bogen AM/FM stereo receiver, Model BR-360. May, 52. Mark III Isophase. June, 59. Tandberg tape deck, Series 3000X. Mar, Christmas Story. Dec., 18. EICO IM/HD distortion meter, Model 92. Sept., 86. 64. EPI loudspeaker, Model 50. Oct., 58. Tannoy loudspeaker system, Model Concert Hall in the Home. H. L. Orbitus 1. Oct., 60. Schmidt. Dec., 20. Fisher AM/FM stereo receiver, Model 201. June, 54. TEAC tape deck, Model A-7030U. Feb., Garrard automatic turntable, Model 46. Condenser Microphone, Case for the. TEAC tape deck, Model 7030SL. Aug., Richard Fowle. July, 26. Zero 100. July, 46. Harman-Kardon preamp/equalizer, 36. Model Citation 11. Jan., 46. V-M automatic turntable, Model 1555. Feb., 44. CONSTRUCTION PROJECTS Heath AM/FM stereo receiver, Model Build Your Own Tape Eraser. Donald AR-1500. Dec., 52. R. Hicke. Jan., 30. Heath oscilloscope, Model I0-102. Sept., IC Tone Burst Generator. Walter G. 88. EVR Video Recording Gilbert P. Jung. 1, Nov., 25; 2, Dec., 30. KLH tape deck, Model 41. Apr., 46. Wyland. Sept., 14. Improved Headphone Listening. Sieg- Logiclock electronic digital clock. Sept., fried Linkwitz. Dec., 42. 87. Hi-Fi Outdoors. Leonard Feldman. Killer Thing. Jim Ashe. Jan., 32. Marantz FM stereo receiver, Model 19. June, 20. Madsen-System Delay Tube, Construc- Mar., 60. tion of. Duane H. Cooper. 1, Apr., 18; Metrotec frequency equalizer. Apr., 50. Hi-Fi at the Playboy Mansion. Bernie 2, May, 48. Addenda. June, 56. Brown. June, 28. Ten-Watt Stereo Amp., Constructing a. Nikko stereo amplifier, Model TRM- Dwight V. Jones. May, 30. 1200. July, 44. How Much Amplifier Power? Don Wide-Range Sweep Oscillator. Michael Panasonic AM/FM stereo receiver, Davis. June, 32. Lampton. July, 30. Model SA-6500. Nov., 38. Panasonic turntable, Model SP-10. London Letter. Donald Aldous. Feb., Aug., 42. 18; Oct., 14. DIRECTORIES Phase Linear amplifier. June, 57. Annual Product Directory. Sept., 22. Pioneer AM/FM stereo receiver, Model LOUDSPEAKERS Additions., Oct., 62; Nov., 54. SX-9000. Aug., 38. Buyers' Guide to Loudspeakers. Mar., Cassette Recorder Review. Aug., 26. Pioneer AM/FM stereo tuner, Model 34. Christmas Buying Guide. Nov., 10. TX-900. Apr., 48. Doppler Anyone? Henri A. van Hessen. Headphone Directory. Dec., 44. Rabco turntable, Model ST-4. Nov., 50. Apr., 42. Loudspeaker Directory. Mar., 34. Realistic music/sound level meter. July. Doppler Distortion-Again? Roy F.Alli- Manufacturers Listing. Sept., 26. 51. son. Mar., 54. Microphone Directory. July. 36. Rotel AM/FM stereo tuner, Model RT- Electrostatic Loudspeakers. George W. Additions, Oct., 62. 320. Dec., 60. Tillett. Mar., 52.

88 AUDIO • DECEMBER 1971 Hofman's Iron Law. Henry Kloss. Mar., 30.

The Loudspeaker/Living Room System. Roy F. Allison. Nov., 18. The Hows. Wheres, and Whys of Test- ing High Quality Loudspeakers. H.D. Harwood. 1, Aug., 16; 2 Sept., 18. The Why and How of Horn Loud- speakers. Victor Brociner. 1, Mar., 16; 2, June, 36.

Mathematics for Beginners. Norman H. Crowhurst. 1, June, 52; 2, Aug., 34; 3, Nov., 34.

MUSIC Boris. Igor, and The Dutchman. Richard Freed. Feb., 30. Country Comes to the City. Don Alto- bell. July, 52. Legend of Enrico Caruso. Don Altobell. Nov., 64. Rafael Kubilek; A Direct Line to Mahler. Sept., 90. Vocal Fireworks. Richard Freed. June, 63.

QUADRAPHONICS The Compatible Stereo-Quadraphonic "SQ" Record. Benjamin Bauer. Oct., 34. How Many Channels? Duane H. Cooper. 2, Feb., 28. The JVC CD-4 System. Oct., 44. Madsen-System Delay Tube. Construc- tion of. Duane H. Cooper. 1, Apr., 18; 2, May, 48. On Matrix Quadraphonic Systems. Leonard Feldman. Oct., 20. One Approach to Four-Channel Sound -Dynaco/Gately. Craig Stark. Oct., 30. Quadraphonic Discs. Edward T. Canby. June, 65. Quadraphonic News. May., 10. Recording in Quadraphonics. Ronald M. Klein. Feb., 26. The Sansui QS System. Oct., 42. Summing Up. Oct., 46.

TAPE RECORDERS, RECORDING Eastman Recording Workshop. Paul Dean. July, 20. Killer Thing. Jim Ashe. Jan., 32. 110 dB Dynamic Range on Tape. Richard S. Burwen. June, 49. Recording in Quadraphonics. Ronald M. Klein. Feb., 26. Tape Erase, Build Your Own. Donald R. Hicke. Jan., 30. Tape Transport Maintenance. Cassette Mechanisms. H. W. Hellyer. 7, Jan., 22; 8, Aug., 22. Tape Recorder Directory. Jan., 36.

Transpet Devices. Apr., 5.

Tuning with no Moving Farts. Leonard Feldman. May, 18.

AUDIO • DECEMBER 1971 89 AMPLIFIERS Small Speaker Survey: 14 Models Panasonic SA-5800 AM/FM receiver. A 700-Watt Amplifier Design. Robert Tested. Sept., 101. Aug., 48. W. Carver. Feb., 24. Open-Reel Tape Recorder Directory. Panasonic RS-736US open-reel tape Intermodulation Distortion: A Power- April, 46. deck. Oct., 67. ful Tool for Evaluating Amplifiers. Turntables: Capsules of Past Reviews. Pioneer SX-727 AM/FM receiver. Gerald Stanely & David McLaugh- June, 46. May, 62. lin. Feb., 36. Turntable Directory. June, 48. Pioneer CS-E400 loudspeaker. Aug., 44. New Amplifiers and Preamplifiers. Realistic STA-120B AM/FM receiver. Feb., 47. Dec., 62. Testing Amplifiers with a Bridge. Rectilinear III Lowboy loudspeaker. Dynamic Noise Filter For Mastering. Andrew R. Collins. Mar., 28. June, 60. Richard S. Burwen. June, 29. Sansui QS-100 decoder/amplifier. Annual Product Directory and List of July, 42. Manufacturers. Sept., 28. Addenda. Equalization of Sound Reinforcement Scott 477 AM/FM receiver. Oct., 69. Nov., 52. Systems. Daniel Queen. Nov., 18. Sharpe 770 headphones. Mar., 64. Sony 1130 integrated amplifier. Feb., Binaural Sound, Audience Involvement EQUIPMENT PROFILES 54. Through Use of. Billy Brant. Nov., Acoustic Research AR-6 loudspeaker. Sony TC-277-4 quadradial tape deck. 34. Jan., 62. Aug., 42. Acoustic Research AR-LST loud- TEAC AS-201 integrated amplifier. C.E.S. New Products At. speaker. Dec., 58. Mar., 60. Aug., 30. Advent smaller loudspeaker. Dec., 65. TEAC A-24 cassette deck. April, 50. Audio Dynamics Corp. XLM phono Telex Studio I headphones. Mar., 68. Christmas Buying Guide. Nov., 54. cartridge. July, 53. Telex 48H 8-track tape player. April, BIX/LUX 71/3R AM/FM stereo 54. Christmas Story. T.W.G. Dec., 34. receiver. Feb., 50. Telex-Viking Quad/Sonic 2+2 tape BSR McDonald 810 automatic turn- recorder. Jan., 57. CONSTRUCTION PROJECTS table. June, 56. Wharfedale W70E speaker. Mar., 69. Acoustic Feedback Loudspeaker Sys- B&W 70CA loudspeaker. Aug., 46. Wollensak 6364 2/4-channel tape tem. Curtiss R. Schafer. Jan., 32. Beyer DT-480 headphones. Mar., recorder. Feb., 57. Dynaquad Four-Dimensional System, 66. A Simple Matrix-Type Unit for the. Crown IC-150 preamplifier and D-150 From the People Who Brought You Erno Borbely. May, 42. amplifier. Jan., 48. Franz Liszt? George W. Tillett. Equalizer, Constructing a Room. Dick Dual 1218 automatic turntable. Jan., April, 36. Crawford. Sept., 18. 56. Preamplifier, A Quiet Phonograph. Dynaco SCA-80Q amplifier. July, 48. Headphones, The "Open-Aire" Prin- James P. Holm. Oct., 34. Dynaco FM-5FM tuner. Oct., 72. ciple in High-Fidelity. Friedrich Tone Burst Generator, Part III-Check Eastman Sound Matrin Crescendo 430 Warning. May., 52. Out and Operation. Walter Jung. loudspeaker. Oct., 74. Jan., 42. Fisher 801 AM/FM quadraphonic re- Kit Builder, Trials and Tribulations of VU Meter, A Peak-Reading, with ceiver. July, 44. the Novice. Leonard Feldman. Nov., Compensation for Tape Saturation. Foster (Ercona) RDF-224 headphones. 28. E.A. Ballik. Oct., 48. Mar., 64. Harman-Kardon 930 AM/FM receiver. Diamond Styli, A New Concept in. June, 52. Language of High Fidelity. Martin Hedi Benz. Aug., 33. Harman-Kardon Citation 13 loud- Clifford. I, May, 32; II, June, 36; speaker. May, 69. III, Aug., 25; IV, Sept., 24; V, Oct., DIRECTORIES AND SURVEYS Harman-Kardon Citation 14 FM tuner. 36; VI, Nov., 42; VII, Dec., 45. New Amplifiers and Preamplifiers. Dec., 54. Feb., 47. Heath AJ-1500 FM tuner. May, 71. Lirpa Matrix System Unveiled. Annual Product Directory and List of Lafayette LA-524 SQ decoder/ampli- April, 12. Manufacturers. Sept., 28. Addenda, fier. July, 40. Nov., 52. Lenco L-75 manual turntable. July, 52. London Letter. Donald Aldous. Cassette Deck Survey: 16 Models Marantz 250 basic amplifier. June, 58. May, 75. Tested. Oct., 56. Marantz Imperial 6 loudspeaker. April, Loudspeaker Directory. Mar., 38. 52. LOUDSPEAKERS Microphone Directory. Dec., 36. Miracord 50 H-II automatic turntable. The Acoustic Feedback Loudspeaker New Receivers and Tuners. Jan., 38. May, 66. System. Curtiss R. Schafer. Jan., 32.

110 AUDIO • OUR 25TH YEAR • DECEMBER 1972 Activating Your Loudspeaker Cross- Care of Records. Percy Wilson. How Audio Tests A Phono Cartridge. over. Michael W. King. April, 32. Dec., 30. Aug., 38. Crossover Network Design. Edward M. Phono Pickups, A Practical High- Long. Mar., 34. Sound Reproduction, Psychology of. Frequency Trackability Test for. What Price Loudspeaker Response Harry F. Olson. June, 20. C. R. Anderson and P. W. Jenrick. Curves? Ralph West. Mar., 18. Aug., 34. TAPE RECORDERS How Audio Tests a Turntable. June, Mathematics For Beginners. Nor- Choosing a Tape Recorder. H. W. 42. man H. Crowhurst. IV, April, 22. Hellyer. April, 16. All About Tape Recorder Equalization. TUNERS Measurement of Loudness. Harry Herman Burstein. Oct., 26. FM Tuner Performance. How to Eval- F. Olson. Feb., 18. Tape Recorders—A View From the uate. Daniel R. von Recklinghausen. Crystal Ball. Herman Burstein. April, Jan., 18. Men of Hi-Fi. Harry Maynard. 40. Men of Hi-Fi: The Perfect FM Tuner. The Perfect FM Tuner, Jan., 26; A Dynamic Noise Filter for Mastering. Harry Maynard. Jan., 26. Status of Quadraphonic Broadcast- Richard S. Burwen. June, 29. ing, May, 57. Noise Reduction Techniques. H. W. Why Are Audio People "A Special Hellyer. Oct., 18. Breed of Cat?" Norman H. Crow- MICROPHONES Quadraphonics: Questions & Answers hurst. May, 78. Microphones. Jim Long. Dec., 18. and How To Convert. July, 36. Microphones—Quo Vadis? James H. The New Sansui "20 dB" Matrix. July, WORKBENCH Kogen. April, 24. 38. Concept Plus Speaker of the House. Men of Hi-Fi: Status of Quadraphonic Sept., 108. Broadcasting. Harry Maynard. May, EICO 955 capacitor bridge. Jan., 66. 57. Ferrograph RTS-1 tape recorder lest MUSIC Refacing Tape Recorder Heads. set. June, 62. Bundles From London. Greg Morrow. William B. Fraser. April, 20. Heathkit IB-101 frequency counter. Feb., 60. Sept., 106. The First Meyerbeer Opera on TESTING Heathkit GD-29 microwave oven. Records. Richard Freed. Sept., 110. Intermodulation Distortion: A Power- Dec., 68. Newport Jazz Festival—New York. ful Tool for Evaluating Amplifiers. Heathkit IM-105 VOM. Jan., 64. Martha Sanders Gilmore. Oct., 91. Gerald Stanley & David McLaughlin. Signal Science Whistle Switch. Oct., 78. How lo Read An Orchestral Score. Feb., 36. Russound/FMP SWB-2 Multiplay Robert F. Weirausch. Dec., 71. Testing Amplifiers with a Bridge. switch. Nov., 72. Solti's Magic Flute. Richard Freed. Andrew R. Collins. Mar., 28. April, 56. Stockhausen's Stimmung: First New York City Performance. William N. Agosto. Feb., 63. Two Verdi Requiems; G&S Encores. Richard Freed. May, 83. Return of the Native: The Link Wray Experience, Martha Sanders Gil- more. Feb., 74.

The Next Ten Years. Industry Leaders. May, 22.

Questions & Answers Amplifier Q's & A's—Mainly for Be- ginners. Feb., 46. Phono Cartridge Q's & A's-Mainly For Beginners. Aug., 40. Quadraphonics Q's & A's—and How to Convert. July, 36. Speaker Q's & A's-Mainly For Begin- ners. Mar., 58.

Quadraphonics Discrete vs. SQ Matrix Quadraphonic Discs. Benjamin B. Bauer. July, 18. Why The Four-Channel War Need Not Take Place. Leonard Feldman. July, 30. Good News Ahead For Record Buyers. Harry Maynard. July, 28. Quadraphonic News. Mar., 14.

AUDIO • OUR 25TH YEAR • DECEMBER 1972 111 AMPLIFIERS Kenwood KR-6340 "2-4 Receiver. Buying Watts and Other Things. Leon- Dec., 58. ard Feldman. Feb., 16. Lafayette LR-4000 4-Channel SQ Re- Fail-Safe Audio Amplifier Design. Brian ceiver. June, 56. G. Wachner. Feb., 38. Magnavox 8898 Receiver. March, 74. What's Watts? H. Peter Meisinger. Feb., Marantz 1120 Amplifier. May, 40. 24. A Correction. April, 62. Microstatic Full-Range Loudspeaker. June, 60. Annual Product Directory and List Microstatic MS-1 Add-On Speaker. of Manufacturers. Sept., 12. Addenda. July, 56. Nov., 38. Onkyo Model 20 Speaker System. Jan., 56. CARTRIDGES Onkyo TX-555 Stereo Receiver. Oct.; AUDIO ETC: The CD-4 Cartridge. 54. Edward Tatnall Canby. June, 36. Phase Linear 400 Amplifier. Feb., 56. AUDIO Tests Nine Phone Cartridges. Pioneer CSR 300 Speaker System. Feb., Aug., 32. 64. Trackabilitv-1973. J. Kogen, B. Jakobs, Pioneer TX-9100 AM/FM Stereo F. Karlov. Aug., 16. Tuner. Aug., 46. RTR 280 DR Speaker System. Nov., 76. CES, Seen at. Aug., 24. Realistic QTA-790 4-Channel AM/FM Receiver with Remote Control. July, Christmas Buying Guide. Nov., 52. 42. Rectilinear XIa Loudspeaker System. CONSTRUCTION Aug., 49. An Inexpensive Microphone. Roland H. Rogersound RSL 28 Loudspeaker Reiss. May, 55. System. June, 67. Simple Volume Compressor. Daniel SAE Mk. XII Speaker System. May, 42. Shanefield. May, 26. Sherwood S-7200 Stereo Receiver. May, 46. Entering the Recording Field. Joseph Shure M91E Phono Cartridge. April, Giovanelli. March, 56. Further Notes. 61. July, 4. Sony STR-7065 AM/FM Stereo Re- ceiver. Nov., 70. EQUALIZATION Tandberg TR 1020 Receiver. Feb., 52. Bass Equalization in Loudspeakers. Dick TEAC AS 100 Integrated Amplifier. Crawford. Nov., 34. Jan., 48. Equalization in the Home. John Eargle. TEAC 450 Cassette Recorder. Dec., 76. Nov., 54. TEAC 3340 Open-Reel Deck. March, 62. EQUIPMENT PROFILES TEAC AT-100 FM Stereo Tuner. June, Acoustic Research AR-7 Speaker. Feb., 64. 62. Technics by Panasonic RS-740US AKAI GXC-46D Cassette Recorder. Quadraphonic Tape Recorder. July, Nov., 72. 54. BGW 500R Stereo Amplifier. Oct., 56. Bozak Sonora Loudspeaker System. Happy 25th Birthday, Transistor! Aud- July, 52. rey Anders. June, 22. Design Acoustics D-12 Loudspeaker System. April, 52. HEADPHONES Dynaco A-35 Loudspeaker System. AUDIO ETC: Binaural Sound from June, 62. Headphones. Edward Tatnall Canby. ESS Mk. II Speaker System. Jan., 46. March, 38. ESS amt-1 Loudspeaker. Dec., 61. Quadraphonic Headphones (survey). Epicure 601 Speaker System. Jan., 54. June, 28. Fisher PL-6 Sound Panel. March, 66. Hegeman H-1 Loudspeaker. Oct., 66. Infinity 1001 Speaker System. April, 54. High Fidelity from Cassette Systems. JVC CD-1667 Cassette Deck. March, M.B. Martin. Oct., 20. 60. KLH Model 52 Stereo Receiver. Aug., The Kennedy Center. Martha Sanders 42. Gilmore. Nov., 86.

94 AUDIO • DECEMBER 1973 LOUDSPEAKERS A New Idea for Measuring Wow and Microphone Addenda. Feb., 28. Bass Equalization in Loudspeakers. Dick Flutter. Robert E. Berglas. June, 26. Open-Reel Recorder Directory. April, Crawford. Nov., 34. 44. Breakthrough in Speaker Testing. New Specs for the New Tuners. Leon- Quadraphonic Headphones. June, 28. Richard C. Heyser. Nov., 20. ard Feldman. Jan., 16. The New Receivers and Tuners. Jan., Canby Looks at and Listens to Flat 24. Loudspeakers. Edward Tatnall Canby. Newport Jazz Festival. Martha Sanders Tape Survey. May, 20. Jan., 22. Gilmore. Oct., 69. Turntable Directory. June, 46. In All Directions. John Crabbe. March, 32. QUADRAPHONICS TAPE RECORDERS The Loudspeaker as a Spherical Sound The Evolution of Four-Channel Equip- The Changing Face of Open-Reel. G.L. Source. Winslow N. Burhoe. March, ment. Leonard Feldman. July, 26. Taylor. April, 32. 16. Quadraphonic Headphones (survey). Logic Control of Tape Recorders. Ole Loudspeaker Damping. Nelson Pass. June, 28. Melvold. April, 26. March, 52. Quadraphony Needs Directional Loud- Open-Reel Tape Recorder Directory. Omnidirectional Radiation. G. Sioles. speakers. Benjamin B. Bauer. March, April, 44. March, 21. 22. Quadraphony Needs Directional Loud- SQ Update-1973. Benjamin B. Bauer. TURNTABLES speakers. Benjamin B. Bauer. March, July, 18. Automatic or Manual Turntables: Which 22. Status: The CD-4 System. George W. One to Buy? Joe Lesly. June, 18. Summing It Up. George W. Tillett. Tillett. July, 40. Turntable Directory. June, 46. March, 32. Why You Should Buy Four-Channel Now. Harry Maynard. July, 36. WORKBENCH MICROPHONES Heathkit IM-102 Digital Multimeter. Directory Addenda. Feb., 28. Studio in the Home. April, 8. Nov., 64. An Inexpensive Microphone. Roland An Inexpensive Microphone. Roland H. H. Reiss. May, 55. SURVEYS AND DIRECTORIES Reiss. May, 55. A Microphone Primer. Jim Long. Part Annual Product Directory and List of Leader LBO-301 Oscilloscope. May, II. Jan., 34. Conclusion. Feb., 48. Manufacturers. Sept., 12. 56. Microphones—The Vital Link in the AUDIO Tests Nine Phono Cartridges. Recording Chain. David Lane Joseph- Aug., 32. The ZYX Phono System. Prof. I. Lirpa. son. Dec., 22. Cassette Tape Tests. Oct., 40. April, 69.

95 AUDIO • DECEMBER 1973 Turntables and Tone Arms, 64; Christmas Buying Guide, Nov., 24. Tuners, 68; Phono Cartridges, 72; Subject Index Open-Reel Tape Recorders, 74; Cas- Construction sette and Cartridge Recorders, 79; Build a Theremin, Robert Brown and Speakers, 92; Equalizers, 118; Head- Mark Olsen, Nov., 38. Amplifiers phones, 120; Microphones, 124; Ad- Build an ES Tweeter/Cone Woofer High-Voltage Amp Design, James Bon- denda, Dec., 30. System, Jan de Vries and Michael giorno, Feb., 30. Lampton, Aug., 28. Thermal Design of a High-Power Am- Book Review: Microphones by Lou Construct a Magnetic-Cartridge Pre- plifier, J. L. Veranth, Feb., 24. Burroughs, David Lane Josephson, amp, Alan G. Ogilvie, June, 40. Dec., 56. A Stereo Control System, Richard Annual Product Directory, October Burwen, Oct., 20. Directory of Manufacturers, 30; Pre- Cartridges amps, 34; Amps, 38; Receivers, 46; Nine CD-4 Phone Cartridges Tested, Converting to Monophonic Sound, Multi-Play Turntables, 58; Manual March, 36. Gerard Rejskind, Apr., 66.

A Dipole Speaker System, Benjamin Hartley Stereo Speaker Sentry, June, Superscope R-350 AM/FM Stereo Re- B. Bauer, Sept., 50. 48. ceiver, Feb., 59. Hitachi TRQ-2040 Cassette Recorder, Tandberg TR-1055 FM/AM Stereo Education June, 62. Receiver, July, 40. IAR—Classroom to Studio, Solomon R. JVC 4VR-5446 Four-Channel Receiver, Technics by Panasonic RS-279US Kunis, Aug., 50. Jan., 44. Cassette Recorder, Apr., 55. Education in Audio, Paul Moverman, Magnavox MX-12 Speaker, May, 40. Technics by Panasonic SA-8000X 2/4- July, 26. Marantz 4400 Stereo/4-Channel Re- Channel Receiver, Nov., 50. ceiver, Sept., 66. Technics by Panasonic SL-1200 Direct- Equipment Profiles McKay Dymek AM-3 Tuner, Dec., 60. Drive Turntable System, July, 44. AKAI 4000DS Tape Deck, May, 45. McKay Dymek DA-3 AM Antenna, Thorens TD-125AB Mk. II Turntable, Altec Concept EQ5 Speaker System, Dec., 60. Feb., 67; Addenda, Apr., 64. Feb., 64. Nakamichi Tri-Tracer 1000 Cassette Wollensak 4780 Cassette Tape Re- Applied Physics Lab APL-101 Speaker, Recorder, March, 66. corder, Aug., 62. June, 65. Panasonic Strain-Gauge (Semicon- Yamaha CA-1000 Integrated Amp, Audioanalyst A-200 Speaker, Jan., 55. ductor) Cartridge, Aug., 65. Sept., 81. Audionics High-Definition Quadra- Pilot 366 Four-Channel Receiver, phonic Decoder, Aug., 64. March, 60. The Gramophone: Basis for an In- BSR 710/X Turntable, Feb., 62. Pioneer QX-949 Four-Channel Stereo dustry, Robert E. Brockway, June, 28. Bose 1801 Stereo Amplifier, Jan., 60. Receiver, Apr., 52. Crown DC-300A Amplifier, Nov., 64. Russound/FMP TMS-1W Tape Re- Headphones Dynaco AF-6 AM/FM Tuner, Sept., 80. corder Selector Switch, March, 82. Headphones Around the House, Leon- ESS Pre-Amp and Model 200 Power Sansui AU-9500 Integrated Amplifier, ard Feldman, May, 24. Amp, May, 48; Addendum, July, 51. June, 59. Why Electrostatics? Jacob Turner, Fairfax FX-350 Speaker System, Nov., Scott 451C Sound Level Meter, Nov., May, 22. 68. 74. Fisher 4060 2/4-channel Receiver, Sequerra Model 1 FM Tuner, Aug., 54. Loudspeakers June, 56. Sharp RT-480U Stereo Cassette Deck, New Loudspeaker With Extended Frankman Integrated Stereo Speaker Nov., 58. Bass, William H. Watkins, Dec., 38. System, July, 46. Sherwood Evolution One Speaker Sys- Speaker Test Explanations, Richard C. Frazier Concerto F-10W-37 Speaker, tem, Apr., 58. Heyser, Anechoic Frequency Re- March, 70. Shure M688 Pre-Amplifier, Dec., 64. sponse, Nov., 44; Frequency Re- Harman/Kardon 900+ AM/FM Multi- Superscope CD-302 Cassette Recorder, sponse-Phase, Dec., 71; Impedance channel Receiver, May, 36. Dec., 62. Sept., 33.

92 AUDIO • DECEMBER 1974 Language of High Fidelity, Martin Clifford, Part XI, May, 28; Part XII, Dec., 48.

Microphones Microphones—Vital Link in the Re- cording Chain, David Lane Joseph- son, Part 2, July, 34; Conclusion, Aug., 38. Mikes of the Pre-War Era, Robert Paquette, Dec., 22. Mike Techniques and Sound Effects, Albert R. Jourdan, Dec., 32.

Music The Folk Process, Ira Mayer, Apr., 47. Liv Taylor in Concert, Michael Nise, May, 58. Ragtime on Record, Charles B. Davis, Jr., June, 50.

Obituary Murray G. Crosby, Sept., 18.

Organs Fixing Your Electronic Organ, Jon Turino, Nov., 30.

Quadraphonic Progress Report, George W. Tillett, July, 20.

Quadra-Direction Discreet Compat- ible Stereo System, Fumitaka Naga- mura, Part 1, Jan., 30; Part 2, Feb., 40; Conclusion, March, 46.

Recording Cassette Transport Problems, Neal Rayborn, Sept., 30. A Primer on Choosing Tape, William A. Manly, Sept., 34. Rx for 78s—Tape Them, Arthur Shif- rin, Apr., 22.

Sound Reinforcement All About "Q", Don Davis, Part 1, June, 34; Conclusion, Sept. 58.

Test Records From the Ortofon Test Record Li- brary, Henning S. Madsen, March, 28.

Tuners New IHF Tuner Specs, Leonard Feld- man, Jan., 20.

20th Century Witchcraft—Electronic Surveillance, Daniel Queen, Jan, 40.

93 AUDIO • DECEMBER 1974 Subject Index Craig 3139 Car Radio, July, 25; ad- denda, Oct., 20. AM Radio Crown VFX/2 Crossover/Filter, Quality AM Radio, George McKay, Dec., 69. Jan., 28. Dynaco 400 Basic Amplifier, May, 46. ELAC 760 Automatic Turntable, Aug., Amplifiers 62. Bi-Amplification, John M. Lovda and Elekt-O-Fonie FU-100 Receiver, Apr., Stephen Muchow, Sept., 20. 54. Power FETs, Bascom H. King, Feb., 42. EPI One Basic Amplifier, Nov., 66. Transient IM Distortion, W. Marshall Ferrograph Super Seven Open-Reel Leach, Feb., 34. Tape Deck, Mar., 42. Cassette Decks: How Well Do They Fisher ST-425 Speaker System, Jan., 48. Stack Up, George W. Tillett, Sept., 38. GAS Ampzilla Basic Amplifier, Sept., 57. Christmas Buying Guide, Nov., 54. Heath AR-2020 Receiver, June, 48. Hitachi HS-300 Speaker System, Mar., Construction Articles 46. Build an Audio Generator, M. J. Sal- J.I.L. 605 Car Radio, July, 26. vati, Oct., 22. JVC 4VR-5426X Receiver, Aug., 47. Build A Dynamic Noise Suppressor, Kensonic C-200 Control Amplifier, Maxwell S. Strange, June, 34. P-300 Basic Amplifier, Mar., 49. Kenwood KP-5022 Turntable, Sept., Crossword Puzzle, Aug., 38. 65. Kenwood KX-710 Cassette Deck, Apr., dBs Made Simple, Herman Burstein, 65. Jan., 36. Koss HV/1A Headphones, Dec., 68. Marantz 125 Tuner, Feb., 54. Directories Nakamichi 500 Cassette Deck, Nov., Annual Product Directory, October. 62. Addenda, December, 77. Nakamichi Large Reference Monitor Directory of Manufacturers, Oct., 30. Speaker System, Dec., 72. Amplifiers, 36; Cassette and Cartridge Panasonic CQ-999 Car Radio, July, 28. Tape Decks, 72; Equalizers, 105; Phase Linear 4000 Preamplifier, Nov., Headphones, 102; Loudspeaker Sys- 58. tems, 76; Microphones, 106; Multi- Philips RH-532 Speaker System, Apr., Play Turntables, 58; Open-Reel Tape 67. Decks, 68; Phono Cartridges, 64; Pre- Pickering XUV/4500Q Phono Cart- amplifiers, 44; Receivers, 52; Single- ridge, Nov., 71. Play Turntables and Tonearms, 60; Pioneer KP-301 Car Radio, July, 30. Tuners, 48. Pioneer CT-F7171 Cassette Deck, Car Speakers Directory, July, 18. Nov.,72. Car Stereo Radio/Tape Player Direc- Polk Nine Speaker System, May, 36. tory, July, 13. Radio Shack STA-225 Receiver, Car Stereo Radio/Tape Player Manu- Dec., 46. facturers, July, 12. SAE Mk IIICM Basic Amplifier, Jan., 61; Addendum, Aug., 69. Equipment Profiles Sansui 881 Receiver, Apr., 55. Ace Audio ZDP Preamplifier, April, Scott R77S Receiver, May, 32. 60. Sharp RT-480U Cassette Recorder Ad- ADS 2001 Car Speaker System, July, 36. dendum, Jan., 65. AKAI GX-400D-SS Open-Reel Tape Sherwood 7210 Receiver, July, 34. Deck, Feb., 56. Shure M-64 Preamplifier, Feb., 61. Avid 102 Speaker System, Sept., 62. Sony TC-755 Open-Reel Tape Deck, Becker Mexico Car Radio, July, 25. Sept., 67. B&O BE-2200 Cassette Deck, Aug., 67. Soundcraftsmen PE-2217 Equalizer, BGW 500D Basic Amplifier, Dec., 76. Mar., 36. C/M Laboratories, RR-805 Receiver, Supex SD-900/E Phono Cartridge, June, 54. Sept., 60.

AUDIO • DECEMBER, 1975 117 Sylvania AS-210A Speaker System, Basics of Turntables, David L. Joseph- Aug., 63. son, June, 26. Technics by Panasonic RS-676 Cas- sette Deck, May, 72. Adopt/on of the Westrex 45/45 Sys- Technics by Panasonic T-400 Speaker tem, Ralph W. Wight, Mar., 24. System, Dec., 54. Technics by Panasonic SA-8500X Re- ceiver, Mar., 31. Wollensak 8080 8-track Cartridge Deck, Aug., 52. Yamaha B-1 Basic Amplifier, Aug., 56. Yamaha CR-1000 Receiver, Jan., 44. Yamaha CT-7000 Tuner, Dec., 64. Yamaha YP-701 Automatic Turntable, June, 52.

FTC Ruling On Amplifiers FTC Wattage Ratings: An Optimistic View, Brian Wachner, Feb., 22. FTC Wattage Ratings: An Alternative View, Robert Tucker, Feb., 30. How Valid is the FTC Preconditioning Rule?, Joseph DeMarinis, Sept., 30.

Headphones Dual Impedance Headphone Circuit, D. A. Kerr, May, 24. Piezoelectric Principle in Head- phones, Martin Clifford, May, 28.

Language of High Fidelity, Part XIII, Martin Clifford, Dec., 38.

Miking With The Three-Point System, Dec., 28.

Quadraphony What Do You Really Hear in Quad- raphony?, Daniel Shanefield, Nov., 44. Up-Date: Musings on the Four-Chan- nel Scene, George W. Tillett, Nov., 36.

Record Cleaners—Do They Really Work? B. V. Pisha, Mar., 20.

Loudspeaker Systems Earthquake Sound System, C. J. Czer- winski and G. R. Lewis, Apr., 46. Motional Feedback in Loudspeaker Systems, George W. Tillett, Aug., 40. Speaker Tests, Richard C. Heyser; Po- lar Response, May, 30; Room Test, Jan., 66. A. N. Thiele—Sage of Vented Speak- ers, Ray J. Newman, Aug., 30.

Recording at Home Through the Years, George Blacker, Apr., 28.

Sun Ra, The Many Worlds of, Tom Bingham, Mar., 56.

Syn-Aud-Con—Audio Toolmaker, Carolyn P. Davis, Sept., 54.

Making Tape, Joseph Kempler, Apr., 38.

118 AUDIO • DECEMBER, 1975 vice, Martin Clifford & Margaret Ei- Pioneer RG-1 Processor, May, 62. sen, Oct., 28. Quintessence Equalizer 1, Feb., 54. Subject Index SAE Mk VII Tuner, Feb., 58. Sansui SR-717 Turntable, May, 60. Equipment Profiles Sonab C-500 Cassette Deck, Nov., 52. AM/FM Radio Advent 400 Table Radio, Jan., 52. Sound Concepts SD-50 Time Delay, New Standards for Tuners and Receiv- Akai AA-1050 Receiver, June, 50. Dec., 40. ers, Leonard Feldman, Jan. 30. Allison: One Speaker System, April, Sound Guard Record Preservative, Syndication of Quadraphonic Radio 70. April, 62. Programs, Martin Clifford, Nov., 46. Audioanalyst A-100X Speaker, Sept., Spectro-Acoustics 210 Equalizer, Nov., 62. 54. Amplifiers Audio Pulse Model One Time Delay Tandberg TR-2075 Receiver, March, Build a Low TIM Amplifier, Marshall Unit, Dec., 40. 44. Leach, Feb. 30; Addenda, April, 12. B•I•C 960 Turntable, June, 58. Technics RS-630US Cassette Deck, BSR FEW-3 Equalizer, Dec., 71. Dec., 73. Construction Articles Crown M-600 Amp, Nov., 92. Technics SA-5550 Receiver, May, 52. Build A Boost/Rumble Filter, Dick Dual Auto/Reverse Cassette Deck, Thorens TD-145C Turntable, March, Crawford, June, 44; Addenda, Dec., May, 55. 57. 30. Dual 601 Turntable, Jan., 50. White 140 Analyzer, Nov., 89. Build a Low TIM Amplifier, Marshall Duntech DL-15 Speaker, Aug. 60. Yamaha HP-1 Headphones, Nov., 74. Leach, Feb., 30; Addenda, April, 12. Dynaco A-25XL Speaker, Nov., 85. Build a Mike for Binarual Listening, Dynaco PAT-5 Preamp, Feb., 64. Hearing Gene A. Nelson, May, 34; Addenda, Electro-Voice Interface: A Speaker, Hearing Loss in Rock Musicians, Dr. Sept., 16. March, 58. David M. Lipscomb, March, 32. Joseph Giovenco, Nov., 46. ESS "Eclipse" 2240 Crossover, July, 64. Switched-On Bass, W.J.J. Hoge, Aug., GTE Sylvania RS4744 Receiver, Feb., 48. Loudspeakers 34. Garrard 86 SB Turntable, July, 64. Speaker Tests: THD, Richard C. Hey- Designing Custom Installations, Paul Harman/Kardon Citation 16 Ampli- ser, Feb., 18. Seydor, Jan., 30. fier, Dec., 76. IM Distortion in Speaker Systems, 20,000 Watt Home Hi-Fi, Richard S. Heath AA-1640 Amp, Nov., 76. Richard C. Heyser, March, 38. Burwen, April, 44. Information Terminals Cassette Audio's Crescendo Test, Richard C. Gauge, March, 56. Heyser, May, 30. Car Speaker Placement, Tomlinson JVC S-300 Receiver, Sept., 48. Energy-Time Test, Richard C. Heyser, Holman, July, 54. JVC CD-1970 Cassette Deck, Dec., 65. June, 74. Kenwood KA-3500 Amp, Dec., 68. Summer Sound Systems, Glen M. Bal- Christmas Buying Guide, Nov., 26. Lux 310 Tuner, Jan., 48. lou, Aug., 24. Marantz 1150D Amp, March, 52. Switched-On Bass, W.J.J. Hoge, Aug., Directories Mark Levinson JC-2 Preamp, April, 62. 34; Addenda, Nov., 24. Annual Product Directory, Oct. McIntosh C-28 Preamp, Nov., 60. Doppler Distortion in Loudspeakers, Directory of Manufacturers, Oct., 16. McIntosh MAC1900 Receiver, June, James Moir, Aug., 42. Amplifiers, 36; Preamplifiers, 48; 66. Tuners, 54; Receivers, 58; Single Play McKay-Dymek AM-5 Tuner & DA-5 Memorabilia Turntables and Tonearms, 66; Multi- Antenna, Aug., 54. Mills Vilano-Virtuoso, Oct. 24. Play Turntables, 76; Phono Cartridges, Micro-Acoustics QDC-1e Phono Cart- 78; Loudspeakers, 86; Open-Reel ridge, Jan., 56. Microphones Tape Decks, 110; Cassette & Cartridge Motorola TC877AX Car Stereo, July, Microphone Sensitivity Ratings, Al- Tape Decks, 113; Headphones, 118; 31. fred Lorona, Dec. 32. Microphones, 120; Equalizers, 126. Nakamichi 600 Cassette Deck, Sept., Annual Product Directory Addenda, 66. Music Dec. 52. Let's Be Fair to Our Favorite Compos- Onkyo TX-4500 Receiver, Dec., 58. Addenda II to 1975 Equipment Direc- ers, Felix Arnstein, Feb., 76. Otari MX-5050-2SH Tape Deck, April, tory, Jan. 46. Of Rosie, Mame, Liza, Ellen, and Rod, 60. Car Stereo Radio/Tape Player Direc- Donald M. Spoto, Feb., 79. tory, July, 36. Phase Linear 2000 Preamp, Sept., 56. Dr. John—The Gris-Cris Man, Andy Car Speakers Directory, July, 50. Panasonic CQ-840EU Car Stereo, July, Doherty, May, 64. 30. Newport Jazz Festival, Martha Sanders Discounts Pioneer PL-71 Turntable, Feb., 74. Gilmore, May, 72. A Dealer's View of Discounts and Ser- Pioneer KP-500 Car Stereo, July, 29. Celebrating the Duke, Dan Morgen- 122 AUDIO • DECEMBER, 1976 stern, April, 74. The Feast Is Yours, Michael Tearson, Sept., 70.

Phono Styli A New Suspension System for Phono Styli, Werner Fidi & Geoffrey M. Lang- don, March, 24.

Quadraphony Build the Latest CD-4 Demodulator, Joseph Giovenco, Nov., 36. Syndication of Quadraphonic Radio Programs, Martin Clifford, Nov., 46.

Record Cleaners Record Cleaners Revisited, B.V. Pisha, May, 40.

Records Making Records, Ralph Cousino, June, 38.

Tape Understanding the NAB EQ Standard, Herman Burstein, April, 32. Understanding S/N Ratios, Herman Burstein, Sept., 32. Reading VU Meters, C.E. Moule, Sept., 42.

Three Car Radios Tested, Leonard Feldman, July, 28.

Time Delay for Ambience, Leonard Feldman, Dec., 40.

AUDIO • DECEMBER, 1976 123 Clarion PE-666A Cassette/AM/FM Car Stereo, July 68. db Systems DB-1 Preamplifier & DB-4 Moving Coil Pre-Preamp, May, 72. dbx 128 Dynamic Range Enhancer, Nov., 106. Dual 1249 Automatic Turntable, Feb. 70. Dynaco SE-10 Equalizer, April, 67. Fosgate PR-7000 Audio Amplifier, July, 56. Garrard GT55 Turntable, April, 72. Subject Index Hartley Zodiak 76 Loudspeaker, June, 72. AM/FM Radio J.I.L. 615 CB/AM/FM/MPX Radio/Stereo Nothing New Under The AM Sun, Cassette Player, July, 62. Michael N. Stosich, Jan., 59. Jensen 530 Loudspeaker, July, 84. Remedying R.F. Interference, Joseph Lirpa I Receiver, April, 60. Giovanelli, Jan., 24. Lux MB-3045 Amplifier, Nov., 80. Marantz 510M Basic Amplifier, March, Amplifiers 72. Amp Design and Overload, R.A. McIntosh C-32 Stereo Preamp- Greiner, Nov., 50. lifier/Control, Dec., 70. Construct A Class-A Amplifier, Nelson McIntosh MC-2205 Power Amplifier, Pass, Feb., 28. Sept., 70. Power Amplifiers & The Loudspeaker McIntosh MR-78 Tuner, Feb. 66. Load, Jeffrey H. Johnson, Aug., 32. Mitsubishi DA-F10 Tuner, Dec.,102. Nakamichi 630 Tuner-Preamplifier, Construction Sept., 77. Build A Low-Noise Preamp with Nikko 9095 Receiver, Jan., 42. Weighting Filters, M.J. Salvati, May, 38. Optonica RT-3535 Cassette Deck, Construct A Class-A Amplifier, Nelson Aug., 78. Pass, Feb., 28. Philips AH-572 Preamplifier, Nov., 64. Construct A Wideband Preamp, W. Pickering XSV/3000 Phono Cartridge, Marshall Leach, Feb., 38; Addenda, June, 100. April, 20, and Sept., 38. Pioneer SX-1250 Receiver, Jan., 64. Low TIM Amp-Part II, W. Marshall Pioneer 510A Turntable, Aug., 77. Leach, Feb., 48. Pioneer RT-2022 Open-Reel Tape Deck, Sept., 66. Directories Pioneer TX-9500-II Tuner, May, 66. Annual Product Directory, Oct. Rabco ST-7 Turntable, Jan., 74. Directory of Manufacturers, Oct., 42. Radio Shack STA-2000 Receiver, Preamplifiers, 52; Amplifiers, 64; March, 62. Tuners, 84; Receivers, 92; Single-Play Russound FMP SP-1 Switching Center, Turntables & Tonearms, 104; Multiple- Nov., 112. Play Turntables, 114; Phono Car- SAE 5000 Impulse Reduction System, tridges, 116; Loudspeakers, 122; June, 86. Cassette & Cartridge Decks, 154; Open- Sansui BA-5000 Amplifier, Nov., 100. Reel Tape Decks, 160; Headphones, Scott R-376 Receiver, June, 64. 162; Microphones, 166; Equalizers, Sherwood Micro/CPU 100 FM Tuner, 169. Nov., 70. Annual Product Directory Addenda, Shure 516EQ Microphone, April, 76. Dec., 108. Sonus Blue Phono Cartridge, April, 70. Car Stereo Manufacturers Directory, Soundcraftsmen TG-2209-600 Graphic July, 34. Equalizer, Nov., 88. Car Radio/Tape Player Directory, July, Sony TAE-5450 Preamplifier, March, 35. 66. Car Speaker Directory, July, 44. Sony STR-6800SD Receiver, Aug., 66. Car Stereo Directory Addenda, Oct., Tandberg TCD-330 Cassette Deck, 171. Aug., 71. Equipment Profiles Tannoy Berkeley Loudspeaker System, AKG C451E Condenser Microphone Dec., 80. System, Aug., 74. Technics SA-5760 Receiver, Jan., 64. Advent 300 Receiver, June, 104. Technics RS-1500US Open-Reel Tape AIWA AD-1800 Cassette Deck, April, Recorder, May, 80. 74. Technics SL-1350 Turntable, June, 82. BGW Systems 203 Preamplifier, Nov., Yamaha CR-2020 Receiver, June, 90. 96. Filters Celestion UL-10 Loudspeaker System, Build A Simple Pink-Noise Filter, Dr. Jan., 46. Robt. Mauro, March, 36.

AUDIO • December 1977 157 Headphones Preamplifiers What You Don't Know Hurts, Jacob C. Build a Low-Noise Preamp With Turner, May, 32. Weighting Filters, M.J. Salvati, May, 38. Hearing Cheap & Dirty Inverse RIAA/Square Perception & Geometry, Richard C. Wave Generator, Dennis Bohn, Feb., Heyser, June, 52. 65. The Physiology of Hearing, Dr. A. Construct a Wide-Band Preamp, W. Joseph Ray Jr., Ph. D. May, 54. Marshall Leach, Feb., 38. Dynamic Range Requirements of History Phonograph Preamplifiers, Tomlinson Movie Sound Reproduction, John K Holman, July, 72. Milliard, March, 44. New Tests for Preamps, Tomlinson Thirty Years of Audio, Norman Holman, Feb., 58. Eisenberg, May, 48. Nothing New Under the AM Sun., Records Michael N. Stosich, Jan., 59. Iron Curtain Records, Greg Morrow, Wags and Tales That Started a June, 44. Revolution, Oliver Berliner, Dec., 36. The Sheffield Story, Andrew P. Teton, Edison Tin-foil Phonograph, Dr. Peter Jan., 34. E. Hillman Ph.D., Dec., 60. Square Wave Generator Loudspeakers Cheap & Dirty Inverse RIAA/Square Power Amplifiers and the Loudspeaker Wave Generator, Dennis Bohn, Feb., Load, Jeffrey H. Johnson, Aug., 32. 65. The Search for an Optimum Tran- Tape smission-Line Speaker, W.J.J. Hoge, Fighting Distortion on Tape, Wayne Aug., 44, Nov., 34. Saylor, April, 34. Time Alignment™ in Loudspeakers, Open Reel vs. Cassette, Herman Lia, Edward M. Long, Aug., 58. April, 28. Modulation Distortion in Loudspeaker Thinking About Print-Through, William Systems, Stephen Kurtin, Dec., 54. Manly, Sept., 54.

Microphones Three Car Components Tested, Leonard Miking the Pro Way, Howard A. Feldman, July, 56. Roberson, Nov., 40. The Compleat Microphone Evaluation, Tonearms Jon Sank, April, 48. Tonearm Design and Other Things, Movie Sound Joseph F. Grado, Aug., 28. Movie Sound Reproduction, John K. Turntables Milliard, March, 44. Do Turntables Effect Sound?, Joseph F. Music Grado, June, 36. lohn Cage—Musical Radical, David D. Turntables & Noise, Joseph F. Grado, Spitzer, Sept., 40. July, 22. Turntables, Part IV, Arm Cartridge Noise Build a Low Noise Preamp With Resonance, Joseph F. Grado, Oct., 30. Weighting Filters, M.J. Salvati, May, 38. Fighting Distortion on Tape, Wayne Saylor, April, 34. Phono Cartridge Noise, John Maxwell, March, 40. Pink Noise Filter, Dr. Robert Mauro, March, 36. Remedying R.F. Interference, Joseph Ciovanelli, Jan., 24. Phono Cartridge Phono Cartridge Noise, John Maxwell, March, 40. Phonographs Do Turntables Effect Sound?, Joseph F. Grado, June, 36. Dynamic Range Requirements of Phonograph Preamplifiers, Tomlinson Holman, July, 72. Tonearm Design and Other Things, Joseph F. Crado, Aug., 28. Turntables & Noise, Joseph F. Crado, July, 22. Turntables, Part IV, Arm Cartridge Resonance, Joseph F. Grado, Oct., 30.

AUDIO • December 1977 158 Dolby Noise Reducer, Geoffrey Hitachi SR-2004 Receiver, Nov., 92. Shorter, May, 78. JVC KD-85 Cassette Deck, Nov., 100. Dolby Noise Reducer, Part II, June, JVC QL-7 Turntable, Dec., 92. 114. Janis Audio W-1 Subwoofer, June, 94. Dolby Noise Reducer, Part III, July, 82. Kenwood KX-1030 Cassette Deck, May, 64. Cascode Amp Design, Nelson Pass, Lenco C2003 Cassette Deck, Nov., 120. March, 52. Lirpa "VDRS" Vehicular Disc Repro- Directories duction System, April, 71. Annual Product Directory, Oct. Lux R-1120 Receiver, Aug., 70. Directory of Manufacturers, Oct., 38. Marantz 2500 Receiver, Feb., 64. Preamplifiers, 58; Amplifiers, 68; Marantz 5030 Cassette Deck, Dec., 84. Tuners, 78; Receivers, 86; Turntables, McIntosh C-27 Preamplifier, Sept., 78. 96; Tonearms, 105; Phono Cartridges, Motorola TC 887 AX Car Radio & Cas- 106; Cassette, 8-Track, & Elcaset Tape sette Player and EQB-3000 Equalizer/ Decks, 114; Open-Reel Tape Decks, Booster, July 51. 122; Headphones, 126; Loudspeakers, Nakamichi CM-700 Microphone, Sept., Subject Index 130; Microphones, 172, and Equalizers, 90. 177. Nakamichi 730 Receiver, Dec., 74. Annual Product Directory Addenda, Nakamichi T-100 Audio Analyzer, New IHF Amplifier Standard, Edward J. Dec., 62. Nov., 128. Foster, June, 24. Directory II, Nov. Neumann fet-80 Microphone, Jan., 80. Blank Tape, 54; Record Care Products, Onkyo A-7 Amplifier, Jan., 68. Antennas 62; Speaker Stands, 63; Power Indica- Optonica ST-3636 Tuner, Dec., 108. What Kind of FM Antenna Is Best for tors, 68; Time Delay & Ambience Gen- Panasonic CX-7100 Cassette Deck, CA- You? M.J. Salvati, Jan., 30. eration Systems, 68; Recorder Care 9500 Tuner, and CH-3510, Booster, Transmission Lines & Signal Distribu- Products, 72; Noise Reduction & Filter July, 64. tion, M. J. Salvati, Feb., 54. Systems, 76; Switching Systems, 80; Pioneer SX-1980 Receiver, Sept., 70. Reception Problems, M.J. Salvati, Component Racks, 84, and Directory Pioneer TVX-9500 TV Tuner, Nov., 108. March, 36. of Manufacturers, 88. Project/One Mark IVB Receiver, April, Complete Antenna Systems, M. J. Sal- Car Stereo Manufacturers Directory, 81. vati, April, 42. July, 28. Realistic Sound Level Meter, Nov., 119. Car Radio/Tape Player Directory, July, Sanyo FT-1490A Car Radio-Cassette Book Reviews 30. Player, July, 56. Modification Manual for Vacuum Car Speaker Directory, July, 36. Satin M-18 BX Phono Cartridge, Dec., Tube Electronics, Feb., 32. Car Stereo Directory Addenda, Dec., 68. 106. The Album Cover Album, Feb., 32. Disco Scene '78, Stephen Traiman, Scott CD-87R Cassette Deck, Aug., 82. John Hammond on Record, Feb., 34. June, 64. Shure M615AS Analyzer System, July, Record Art Books Compared, James 92. Wizard Wilson, June, 70. Sony PS-X6 Turntable, July, 86. Silver Ghosts, Aug., 103. Dolby Sony TC-K7II Cassette Deck, Aug., 76. 1988: The New Wave Punk Rock Build A Dolby Noise Reducer, Geof- Sparkomatic SR-48 Car Radio & Cas- Explosion, Aug., 103. frey Shorter, May, 78. sette Deck, July, 50. Acoustic Design, Aug., 103. Build a Dolby Noise Reducer, Part II, Spectro Acoustics 217 Preamplifier, June, 114. Feb., 86. Car Stereo Build a Dolby Noise Reducer, Part III, Stanton 881S Phono Cartridge, Nov., Four Car Stereos Tested, Len Feldman, July, 82. 105. July, 48. Studer-Revox B-77 Open-Reel Recor- Car Stereo Directory of Manufacturers, Equipment Profiles der, Sept., 84. July, 28. AKG P8ES Phono Cartridge, Dec., 96. Tandberg TR-2040 Receiver, June, 102. Car Stereo Directory, July, 30. Ace Audio 3100 Preamplifier, April, 87. Technics RS-9900US Tape Deck, June, Car Speaker Directory, July, 36. Acutex M320III STR Phono Cartridge, 106. June, 112. Toshiba PC-3060 Cassette Deck, Feb., Cassettes Aiwa AD-6550 Cassette Deck, Dec., 82. 58 Cassettes Tested, Howard A. 100. White 4100 Equalizer, Nov., 125. Roberson, Sept., 42. Armstrong 625 Receiver, March, 78. Yamaha CR-420 Receiver, Nov., 114. Performance of High-Energy Materials Audio General 511 Preamp, June, 86. in Cassettes, Peter Vogelgesang, Sept., B&W DM-6 Speaker, Feb., 74. Equivalent Mass—Fact or Fiction?, 54. B&O M70 Speaker, May, 64. Roger Anderson, March, 60. Cassette Tapes Tested — An Update. Beyerdynamic M500N (C) Micro- FCC's Four-Channel Listening Tests, Howard A. Roberson, Dec., 71. phone, Feb., 89. Alfred W. Myers, May, 24. Big Tape Head Maintenance Kit, Nov., Construction 112. FM Specifications Revisited, Leonard Build an Audio Phase Detector, Burwen DNF-1201A Noise Filter, Jan., Feldman, April, 58. Charles Kitchin, Jan., 54. 76. Headphones—History & Measure- Build a Pre-Preamp, W. Marshall Cerwin-Vega Metron PR-1 Preampli- ment, P. Milton, May, 89. Leach, Feb., 36. fier, May, 74. Build a Speaker Power Indicator, Al- Dual 939 Cassette Deck, April, 92. Japan Audio Fair, George W. Tillett, mon Clegg, March, 42. Garrard GT-35 Turntable, April, 90. Feb., 42.

164 AUDIO • December 1978 Listening Les Paul, Interview, Paul Laurence & Recordings for Critical Listening, Dan- Bob Rypinski, Dec., 36. iel Shanefield, Jan., 40. Headphones—History & Measure- Phono Cartridges ment, P. Milton, May, 89. Equivalent Mass—Fact or Fiction?, Roger Anderson, March, 60. Loudspeakers Phonograph Reproduction 1978, James TDS in Sound Measurements, Don H. Kogen, et al., May, 32. Davis, Jan., 46. Phono Reproduction, Part II, James H. Another Look at Crossover Networks, Kogen, et al., June, 42. Neville Thiele, Aug., 38. Confessions of a Loudspeaker Engi- Recordings for Critical Listening, Dan- neer, W.J.J. Hoge, Aug., 47. iel Shanefield, Jan., 40. Sabine Reverberation Equation and Its Offspring, Don Davis, Aug., 56. Guide to Good Service, Herman Bur- stein, July, 68. Measurements TDS in Sound Measurements, Don Standards Davis, Jan., 46. FM Specifications Revisited, Leonard Audio Phase Detector, Charles Kitchin, Feldman, April, 58. Jan., 54. New IHF Amp Standard, Edward J. Fos- FM Specifications Revisited, Leonard ter, June, 24. Feldman, April, 58. FCC's Four-Channel Listening Tests, Tape Alfred W. Myers, May, 24. Tape Slitting & Edge Quality, Wayne Phono Reproduction 1978, James H. Saylor, April, 28. Kogen, et al., May, 32. 58 Cassettes Tested, Howard A. Rober- Phono Reproduction 1978, Part II, son, Sept., 42. June, 42. Performance of High-Energy Materials New IHF Amp Standard, Edward J. Fos- in Cassettes, Peter Vogelgesang, Sept., ter, June, 24. 54. A New Standard in Turntable Speed A New Recording System, Herman Lia, Constancy, George T. Gillies, Rogers C. July, 76. Ritter, & Robert T. Rood, June, 78. The Compleat Microphone Review— A New Standard in Turntable Speed An Update, Jon Sank, Sept., 35. Constancy, George T. Gillies, Rogers C. 58 Cassettes Tested, Howard A. Rober- Ritter, & Robert T. Rood, June, 78. son, Sept., 42.

Microphones The Compleat Microphone Review— An Update, Jon Sank, Sept., 36. A Basic Guide to Coincident Micro- phones, Charles P. Repka, Nov., 40.

Music Recordings for Critical Listening, Dan- iel Shanefield, Jan., 40. My Friend, The Maestro . . . Leopold Stokowski, Bert Whyte, Jan., 58. George Martin, Interview, Paul Lau- rence, May, 46. Les Paul, Interview, Paul Laurence & Bob Rypinski, Dec., 36. Disco Scene '78, Stephen Traiman, June, 64.

Open-Reel Renaissance, Gary R. Gruber, April, 52.

Perils of Patchwork, Clyde J. Schultz, March, 68.

Personalities My Friend, The Maestro . . . Leopold Stokowski, Bert Whyte, Jan., 58. George Martin, Interview, Paul Lau- rence, May, 46. Tall Tales, Joel Tall, Oct. 16.

AUDIO • December 1978 165 Line Surge and Hash Protection for Hi- Fi Equipment, F. J. Stifter, May, 38. Build a Headphone Amp, Walter G. Jung, May, 56. Quick-Build a Speaker Impedance Checker, M. J. Salvati, Aug., 32. Addenda Car Stereo Directory — Radios/Tape The Ins and Outs of Toroidal AKG P8ES Phono Cartridge (Equip- Players, July, 56. Transformers, John I. Brown, Dec., ment Profile, Dec. 1978, 96), Feb., 12. Car Stereo Directory — Speakers, July, 38. Satin M-18BX Moving-Coil Phono Car- 64. tridge (Equipment Profile, Dec. 1978, Car Stereo Directory — Amps / Equal- 106), Feb., 12. izers, July, 73. Directories Car Stereo Directory, July. Amps & Preamps Directory of Manufacturers, 54; Build an Amplifier Strapping Circuit, Cassettes Radios/Tape Players, 56; Speakers, 64; W. Marshall Leach, Feb., 40. Tape-to-Deck Matching for Best Dolby Amps/Equalizers, 73. Build a Microphone Preamp, W. J. J. Tracking, Howard A Roberson, Sept., Annual Equipment Directory, Oct. Hoge, Feb., 50. 44. Directory of Manufacturers, 34; Build a Headphone Amp, Walter G. Up in the Air About Metal Tape?, Amplifiers, 46; Preamplifiers, 60; Jung, May, 56. Howard A Roberson, Sept., 50. Tuners, 66; Receivers, 70; Turntables, Quick-Build a Speaker Impedance Metal Cassette Tests, Howard A. 76; Phono Cartridges, 85; Tonearms, Checker, M.J. Salvati, Aug., 32. Roberson, Sept., 54. The Ins and Outs of Toroidal 100; Cassette & 8-Track Tape Decks, Transformers John I. Brown, Dec., 102; Open-Reel Tape Decks, 112; 38. Construction Equalizers, 114; Headphones, 116; Build an Amplifier Strapping Circuit, Loudspeakers, 120; Microphones, Antennas W. Marshall Leach, Feb., 40. 148. Directory II, Nov. Antennas — Part V: Special Antenna Build a Stepped Volume Control, W. Blank Tape, 54; Directory of Manu- Techniques, M. J. Salvati, Jan., 42. Marshall Leach, Feb., 44. Build a Microphone Preamp, W. J. J. facturers, 66; Ambience and Time- Hoge, Feb., 50. Delay Units, 68; Noise-Reduction Book Reviews Magnetic Shielding, Herman Burstein, and Filter Systems, 70; Compressors- Honkers and Shouters: The Golden April, 46. Expanders, 72; Record Care Accesso- Years of Rhythm and Blues, Jan., 28. Build a Tape Deck Switching Box, John ries, 74. Walk Away Rene, Jan., 29. T. Peer, April, 50. 1978 Equipment Directory Addenda II, Music, Speech & High Fidelity, Feb., Jan., 30. 34. Active-Filter Cookbook, Feb., 34. IC Timer Cookbook, March, 99. Distortion Theory Handbook of Noise Assessment, A View Through Different Windows, March, 99. Richard C. Heyser, Feb., 56. Audio IC Op-Amp Applications, Sept., Catastrophe Theory and Its Effect on 74. Audio, Richard C. Heyser, Part I, Noise Reduction Techniques in Elec- March, 52; Part II, April, 36; Part III, tronic Systems, Sept., 74. May, 42. Grounding and Shielding Techniques Phase Time, Ears & Tape, William A. in Instrumentation, Sept., 74. Manly, April, 52. The Complete Handbook of Public An Overview of SID and TIM, Walter Address Systems, Sept., 78. G. Jung, Mark L. Stephens, and Craig The Face of Rock & Roll, Sept., 78. C. Todd; Part I, June, 59; Part II, July, Dictionary of Scientific and Technical 38; Part III, Aug., 42. Terms, 2nd Edition, Nov., 110. The History of Radio, Nov., 110. TV Antennas and Signal Distribution Dolby Systems, Nov., 110. Tape-to-Deck Matching for Best Dolby Tracking, Howard A. Roberson, Sept., 44. Car Stereo Tips from a Pro — Car Speaker Installa- tion, July, 52. Equipment Profiles Car Stereo Manufacturers Directory, ADC Model LMF-2 Tonearm & ZLM July, 54. Phono Cartridge, Jan., 92.

146 AUDIO • December 1979 ADC Model 1700DD Semi-Automatic Realistic SCT-30 Cassette Deck, June, Measurements Turntable, Dec., 84. 94. TDS—A Progress Report, Don and ADS Model 10 Digital Time Delay Sys- ReVox Model B 790 Turntable, June, Carolyn Davis, Jan., 58. tem, June, 98. 92. Metal Cassette Tests, Howard A. Acoustic Research AR90 Loudspeaker, Rotel RT-2100 Tuner, Sept., 58. Roberson, Sept., 54. Nov., 88. SAE Model 2922 Integrated Amplifier, Advent 500 SoundSpace Control, May, March, 84. Obituaries 70. Sansui SR-838 Direct-Drive Turntable, Clarence C. Moore, May, 28. Akai GX 267D Open-Reel Tape Deck, Feb., 70. Benjamin B. Bauer, July, 51. June, 106. Sanyo RD5350 Cassette Deck, Feb., 87. Howard T. Souther, Dec., 32. Audio Technology 510 Peak Respond- H. H. Scott 390R Receiver, Aug., 60. ing Delay, May, 68. Sencore PR50 Audio Prescaler, April, Personalities Bauman Research Pro-400 Preampli- 76. Scott—The Stradivarius of Radio, fier, Nov., 102. Shure V15 Type IV Phono Cartridge, J.W.F. Puett, Feb., 36. Berkshire Audio Products Match- Feb., 68. Interview/Jim Metzner/Sound Image, Maker, March, 93. Sonus Gold Series II Blue Label Phono Tom Bingham, Nov., 44. Berkshire Audio Products CCM Capa- Cartridge, July, 81. citance Meter, March, 94. Sony ECM-56F Electret Condenser Phono Cartridges Cotter MK-2 Transformer, March, 94. Microphone, Jan., 103. Understanding Phono Cartridges, S.K. Crown DL-2 Digilogic Control Center, Soundcraftsmen RP2215-R Stereo Pramanik, March, 33. March, 89. Equalizer, July, 83. Records & Recording db Systems DBP-6 Phono Equalization Stanton Permostat Anti-Static Record Acoustic Rosetta Stone, Richard C. Kit, March, 93. Treatment, May, 60. Heyser, Jan., 66. Decca London International Tonearm TDK HD-01 Head Demagnetizer, Aphex Aural Exciter—New Tool of Hit & Mk VI Cold Elliptical Phono Car- March, 96. Record Makers, Paul Laurence, and tridge, Aug., 72. TDK Test Tapes, Dec., 82. George Pontis, June, 46. Empire Disco Film Record Cleaner, TEAC Model C-1 Cassette Deck, Dec., Interview/Jim Metzner/Sound Image, April, 75. 78. Tom Bingham, Nov., 44. Empire EDR.9 Magnetic Phono Car- Tandberg TD 20A Open-Reel Tape Christmas Buying Guide: Audiophile tridge, Sept., 66. Deck, March, 64. Recordings, Gary Stock, Dec., 52. Infinity Black Widow Tonearm, March, Technics RS-616 Cassette Deck, Feb., Digital Recording: State of the Market, 76. 84. Gary Stock, Dec., 70. Jensen R-430 Car Stereo Cassette/Re- Technics RS-M85 Cassette Deck, June, ceiver, Jan., 70. 87. Tape KEF 104aB Loudspeaker System, Dec., Visonik DD-8200 Turntable, May, 76. Phase, Time, Ears & Tape, William A. 88. Warp Out Record Weight, Sept., 64. Manly, April, 52. Yamaha NS-1000 Loudspeaker System, KLH/Burwen Research TNE7000 Tran- Tape-to-Deck Matching for Best Dolby sient Noise Eliminator, Jan., 105. Jan., 82. Tracking, Howard A. Roberson, Sept., Yamaha CR-2040 Receiver, June, 74. Kenwood KR-7050 Receiver, July, 76. 44. Lirpa 1 Showermike, April, 70. The Forum Up in the Air About Metal Tape?, McKay Dymek DR-33 All-Wave AM Clear-Channel Proposal, Lawrence Howard A. Roberson, Sept., 50. Receiver, Sept., 70. D. Swift, May, 6. Metal Cassette Tests, Howard A. Megatronics HV9100 Ribbon (Velocity) Polarity Convention, Richard C. Roberson, Sept., 54. Magnetic Phono Cartridge, May, 66. Heyser, Aug., 18. Nakamichi 582 Cassette Deck, Aug., Omitted Factors in Audio Design, John Tuners 82. J. Curl, Aug., 20. Rimo FM Tuner Filters, Richard Moda- Nikko Gamma I Tuner, May, 64. ferri, Jan., 32. Onkyo TX-2500-II Receiver, Feb., 74. SCA & Stereo FM, Stephen R. Waldee, Ortofon MC-30 Moving-Coil Phono History Jan., 50. Cartridge & T-30 Transformer, Nov., Scott—The Stradivarius of Radio, J. W. 98. F. Puett, Feb., 36. Turntables PS Audio Model PS-II Phono Preampli- Do Turntable Mats Work? You Bet!, fier, Feb., 80. Robert Stockton, June, 42. Phase Linear 3000 Series II Preampli- Loudspeakers The Fine Art of Tweaking Your Turn- fier, Jan., 76. Quick-Build a Speaker Impedance table, Bob Gary, June, 52. Pioneer TX-9800 Tuner, Nov., 80. Checker, M.J. Salvati, Aug., 32. Professional Systems Engineering (PSE) Influence of Listening Rooms on Workbench Profiles Studio One Preamplifier and Studio Loudspeaker Systems, Roy F. Allison, Hewlett-Packard 339A Distortion Ana- Two Power Amplifier, April, 72. Aug., 36. lyzer/Oscillator, July, 48. Quad (Acoustical Mfg., Ltd.) 405 Pow- The Importance of Speaker Directivity, Crown RTA-2 Real-Time Analyzer, er Amplifier, April, 77. Dan Queen, Sept., 37. Nov., 106.

AUDIO • December 1979 147 Addenda Digital Recording Cartridge, March, 78. Crown RTA-2 Real Time Analyzer Digital Techniques In Sound Repro- B•I•C T-4M Cassette Deck, Feb., 68. (Workbench Profile, Nov. 1979, 106), duction, Daniel Minoli, Part I, April, Carver M-400 Power Amplifier, Nov., Jan., 30. 54; Part II, May, 34. 30. Ortofon MC-30 Moving Coil Cartridge Dr. Thomas Stockharn — On The Fu- Connoisseur BD2A Turntable, July, 74. (Equipment Profile, Nov. 1979, 98), ture of Digital Recording, Gary Crown FM-1 Tuner, May, 66. Jan., 30. Stock, Feb., 8. DB Systems DB-6 Basic Amplifier, Jan., 102. Dennesen Geometric Soundtracktor & Amplifiers Directories Vertical Tracking Angle Gauge, Build a Double-Barreled Amplifier. W. Car Stereo Directory, July. March, 75. Marshall Leach, Jr., Part I, April, 36; Directory of Manufacturers, 28; Ra- Denon DL-103D Phono Cartridge, Part II, May, 44. dios/Tape Players, 29; Speakers, 35; Sept., 70. Amps/Equalizers, 44. Denon DA-307 Tonearm, Sept., 70. Annual Equipment Directory, Oct. Antennas Denon AU-320 Transformer, Sept., 70. Directory of Manufacturers, 158; Am- Kill FM Interference with Two Anten- Dual CS 731Q Automatic Turntable, plifiers, 20; Preamplifiers, 32; Tuners, nas, Richard Modafferi, Jan., 68. May, 70. 40; Receivers, 44; Turntables, 50; Dual C-820 Cassette Deck, Sept., 67. Tonearms, 58; Phono Cartridges, 62; Dynavector DV/Karat Diamond Car- Book Reviews Loudspeakers, 67; Microphones, 103; tridge, July, 71. Born To Run: The Bruce Springsteen Cassette Decks, 108; Equalizers, 113; Dynavector DV-6A Transformer, July, Story, Nov., 50. Open-Reel Tape Decks, 116; Head- 71. The Concerts, Aug., 63. phones, 118. Fisher CR-4029 Cassette Deck, April, The Preservation & Restoration of Directory II, Nov. 66. Sound Recordings, Aug., 63. Directory of Blank Tape, 64; Noise Fisher MT-6250 Turntable, June, 88. The Illustrated History of Rock Album Reduction & Filter Systems, 68; Ambi- Fried Products Model Q Loudspeaker Art, Nov., 50. ence & Time-Delay Units, 70; Com- System, June, 93. The Rolling Stone Record Guide, Dec., pressors/Expanders, 72; Directory of Fulton Nuance Loudspeaker, Dec., 48. 20. Manufacturers, 74. JVC A-X9 Amplifier, July, 68. Bob Dylan, His Unreleased Record- 1979 Equipment Directory Addenda, Lirpa 5 Kg Tonearm & Cartridge, April, ings, Dec., 20. Jan., 33. 62. 7979 Car Stereo Directory Addenda, Luxman K-12 Cassette Deck, April, 74. Jan., 41. Car Stereo Mitsubishi M-A01 (Micro) Amplifier, Car Stereo Manufacturers Directory, Jan., 90. July, 28. Distortion Theory Mitsubishi M-P01 (Micro) Preampli- Car Stereo Directory — Radios/Tape Another View of TIM, Robert R. Cor- fier, Jan., 90. Players, July, 29. dell, Part I, Feb., 38; Parr II, March, 39. Mitsubishi M-F01 (Micro) Tuner, Jan., Car Stereo Directory — Speakers, July, Picking Capacitors, Walter G. Jung and 90. 35. Richard Marsh, Part I, Feb., 52; Part II, Mitsubishi DA-R20 Receiver Aug., 50. Car Stereo Directory — Amps/Equaliz- March, 50. NAD 7020 Receiver, June, 76. ers, July, 44. NAD 6040 Cassette Deck, Dec., 41. Great Cars! Great Sound!, Gary Stock, Nakamichi 680ZX Cassette Deck, Sept., Dynamic Range July, 52. 56. The Importance of Dynamic Range, Keep Your Car Stereo Safe, Bob Curtis, Nakamichi High-Com II Noise Reduc- Jerome E. Ruzicka, Jan., 52. July, 60. tion System, Sept., 62. Optonica RT-6905 Cassette Deck, Equipment Profiles June, 83. Christmas ADC Sound Shaper Two Mark II Phase Linear 8000 Series II Turntable, Christmas Buying Guide, Dec., 28. Equalizer, Feb., 73. Nov., 40. Alpine Car Stereo 3002 Main Amplifier, Pioneer PL-630 Turntable, Jan., 98. Construction April, 70. RG Dynamics RG D-3 Preamplifier, Build a Double-Barreled Amplifier, W. Alpine 7307 Car Stereo, April, 70. May, 74. Marshall Leach, Jr., Part I, April, 36; Apt/Holman Control Preamplifier, Sansui BA-F1 Power Amplifier, March, Part II, May, 44. Feb., 76. 72. Build An Energy Storage Bank, Walter Astatic MF-100 Phono Cartridge, Dec., Sansui CA-F1 Preamplifier, June, 90. G. Jung, Aug., 38. 45. Sherwood S-32CP Tuner, Jan., 106. Build A Headphone Crossfeed Circuit, Audio-Technica Lifesaver Record Care Shure SM-81 Microphone, Aug., 57. Charles Repka and Paul Berkowitz, System, Feb., 64. Sony PCM-1 Digital Adaptor, March, May, 32. Bang & Olufsen MMC 20CL Phono 64. AUDIO • DECEMBER 1980 107 Soundcraftsmen SP 4001 Preamplifier- Records and Record Care Tonearms Equalizer, Nov., 44. How Records Are Made, Gary Stock, Tonearm Geometry and Setup Demys- Technics ST-C01 Tuner, April, 79. June, 42. tified, Martin D. Kessler and B.V. Threshold Stasis 3 Power Amplifier, In The Groove: Close-Up View of Pisha, Jan., 76; Addenda, April, 26. Dec., 38. Record Wear, Walter Davies, Sept., Understanding Tonearms, S.K. Vector Research VCX-600 Cassette 38. Pramanik, June, 52. Deck, Dec., 58. White 4220 Passive Equalizer, March, Video 76. Tape RCA Shows SelectaVision Video Disc, BASF DIN Calibration Cassettes, How- Gary Stock, March, 44. ard A. Roberson, Feb., 82. Future Trends Blank Tape Directory, Nov., 64. Workbench Profile Doug Sax On Current Record Technol- 37 Cassette Tapes Tested, Howard A. BASF DIN Calibration Cassettes, How- ogy and Music Systems of the future, Roberson, Sept., 44. ard A. Roberson, Feb., 82. Gary Stock, March, 30. Dr. Thomas Stockham — On the Fu- ture of Digital Recording, Gary Stock, Feb., 8. Trends For The Future, Gary Stock, April, 28.

History Edwin Armstrong: Genius Inventor, Gary Stock, Nov., 52. Mechanical Marvel, C.F. Kerry Gauld- er, Nov., 58.

Loudspeakers Alternative Speaker Technologies, Gary Stock, Aug., 32.

Measurements Which Is The Real Tape Playback Curve? — Tape Guide II, Herman Burstein, May, 30. The New Level Meters, Ronald G. Ajemian, Dec., 34. All That Data: FM Tuner Quieting and Distortion, Leonard Feldman. Dec., 68.

Obituaries Robert M. Schmetterer, June, 40. John E. Volkmann, Nov., 12.

Personality Profiles Fiedler, Arthur — lust Call Me Maes- tro, Bert Whyte, Jan., 48. Klipsch, Paul — Arkansas Speaker Maker, Bob Browne and Gary Stock, Aug., 26. Sax, Doug— On Current Record Tech- nology and Music Systems of the Fu- ture, Gary Stock, March, 30. Stockham, Dr. Thomas — On the Fu- ture of Digital Recording, Gary Stock, Feb., 8. 108 AUDIO • DECEMBER 1980 Addenda Construction Projects JVC R-S77 Receiver, Jan., 56. Cassette Retest: Tape 5 Wide Latitude Construct an Indoor/Outdoor FM Anten- JVC HR-6700U Videocassette Recor- Tape, Howard A. Roberson (37 Cas- na, Dr. Frank P. Maloney, Jan., 38; der, April, 56. sette Japes Tested, Sept. 1980, 44), Addenda. March, 18. JVC KD-A7 Cassette Deck, May, 36. Jan., 68. Buiid a Square and Triangle Wave Gen- Koss K/4DS Digital Delay System, Dec., Construct an Indoor/Outdoor FM Anten- erator, M.J. Salvati, Jan., 44. 60. na, Dr. Frank P. Maloney (Jan. 1981, Build a High-Performance THD Analyzer, Marovskis MIT-1 Phono Cartridge. Nov., 38). March, 18. Robert R. Cordell, Part I, July, 34; Part 62. The New Level Meters, Ronald G. Ajemi- II, Aug., 14; Part III, Sept., 52; Adden- McIntosh MR-80 Tuner, March, 34. an (Dec. 1980, 34), May, 16. da, Nov., 14. Mitsubishi LT-30 Turntable, June, 68. Build a Pre-Preamp, W. Marshall Leach Mordaunt-Short Signiter Loudspeaker, Jr. (Feb. 1978, 36), Oct., 22. Feb., 56. Pioneer F-9 Tuner (Equipment Profite, Digital Recording MTI 500 Preamplifier, May, 40. Aug. 1981, 36), Oct., 22. Telefunken Digital Mini Disc, Gary Stock, MXR 139 Linear Preamplifier, Nov., 58. Build a High-Pgrformance THD Analyzer, June, 45. Nakamichi 1000 ZXL Cassette Deck, Part III, Robert R. Cordell (Sept. 1981, The Audio interview: Todd Rundgren, June, 54. 52), Nov., 14. Jon & Sally Tiven, Nov., 28. Onkyo CP-1150F Turntable. Aug., 42. Measuring Speaker Motion with a Laser, The Audio Interview: Morton Gould, Phase Linear 1100 Series Two Paramet- Part II, G.J. Adams (Sept. 1981, 40), Gary Stock, Dec., 32. ric EQ, Dec., 52. Nov., 14. Phase Linear 1200 Series Two RTA Build a Double-Barreled Amplifier, W. Dec , 56. Directories Marshall Leach Jr. (April 1980, 36; Pioneer F-9 Tuner, Aug., 36; Addenda, Car Stereo Directory, July. May 1980, 44), Dec., 20. Oct., 22. Index of Manufacturers, 16; Radios/ Pioneer A-9 Amplifier, Dec., 38. Tape Players, 17; Speakers, 21; Realistic STA-2200 Receiver, Feb., 44. Amplifiers Amps/Equalizers, 26. SAE Two C4 Cassette Deck, Feb., 50. Crown's Self-Analyzing Power Ampli- Annual Equipment Directory, Oct. SAE A-501 Amplifier, Nov., 46. fiers. Gerald Stanley, Feb., 29. Directory of Manufacturers, 6; Intro- Shure V15 Type IV Phono Cartridge and duction, 44; Preamplifiers, 46; Ampli- SME 3009 III Tonearm May, 44. Audio Hall of Fame fiers, 52; Tuners, 58; Receivers, 62; Shure MV30HE Phono Cartridge and Len Feldman & Edgar Villchur Honored, Turntables, 66; Tonearms, 74; Phono Tonearm Combination, June, 62. Jan., 12. Cartridges, 76; Cassette Decks, 83; SME 3009 III Tonearm and Shure V15 Open-Reel Tape Decks, 96; Type IV Phono Cartridge, May, 44. Loudspeakers, 98; Microphones, 126; Book Reviews Sony ST-J75 Tuner, April, 44. Headphones, 132; Equalizers, 135. IEEE Standard Dictionary of Electrical & Sony TC-K81 Cassette Deck, Nov., 50. Directory of Blank Tape, Nov., 22. Electronic Terms, 2nd Edition, June, Sony PS-X800 Turntable, Dec., 48. 1980 Equipment Directory Addenda, 28. Soundcraftsmen RA7502 Power Ampli- Jan., 26. No One Here Gets Out Alive, June, 28. fier, July, 54. 1980 Car Stereo Directory Addenda, Symmetry ACS-1 Stereo Crossover Jan., 36. Jan., 65. Cassettes Technics SA-424 Receiver, Aug., 50. Cassette Retest: Tape 5 Wide Latitude Equipment Profiles Technics SH-F101 FM Antenna, Aug., Tape, Howard A. Roberson, Jan., 68. Akai GX-F90 Cassette Deck, Aug., 46. 55. The Mechanism of Magnetic Tape Era- Apt Corp. Apt 1 Amplifier, March, 44. Technics RS-M95 Cassette Deck, Sept., sure, Peter Vogelgesang, April, 24. Audio Control C-101 RTA/Equalizer, 62. Focus on Head Demagnetization, Her- April, 50. Technics SL-QL1 Turntable and P22S man Burstein, April, 25. Audio-Technica AT-32 Phono Cartridge Phono Cartridge, Nov., 55. The Audio Interview: Willi Studer, Gary and AT-650 Matching Transformer, Wharfedale E-90 Loudspeaker System, Stock, April, 34. Dec., 44. Sept., 68. The New Cassettes: Performance Up- Bryston 1-B Preamplifier, Nov., 42. Yamaha R-2000 Receiver July, 44. date, Howard Roberson, Sept., 18. E-V CO15P/CS15P Electret Condenser Focus on Shell Mechanics, Howard Microphones, March, 50. Headphones Roberson, Sept., 31. Jensen T-415 Car Stereo Cassette Deck The New Featherweight Headphones, Directory of Blank Tape, Nov., 22. and A-60 Power Amp, July, 58. Gary Stock, May, 30.

98 AUDIO/DECEMBER 1981 History Psychoacoustics Turntables Acoustics Circa 1657 — Explorations Audio — Pain or Pleasure?, Martin Po- Linear Tracking Turntables, Gary Stock. into Our Acoustic Heritage, Don & lon, Jan., 48. June, 48. Carolyn Davis, Feb., 40. Lirpa StereoMusikon Discovered!, Jim Tape Recording & Recorders Video Wilson, April, 40. The Mechanism of Magnetic Tape Era- JVC HR-6700U Videocassette Recorder The Roots of High Fidelity Sound, Bert sure, Peter Vogelgesang, April, 24. (Equipment Profile), April, 56. Whyte, June, 34. Focus on Head Demagnetization, Her- Sony Profeel: "The Video Screen in Fifty Years of TV, Eugene Pitts III and man Burstein, April, 25. Your Future," Leonard Feldman, May, Walter I. Seigal, July, 28. The Audio Interview: Willi Studer, Gary 34. A Christmas Gift of Music, Long Ago, Stock, April, 34. The Audio Interview: Todd Rundgren, Hans Fantel, Dec., 28. The New Cassettes: Performance Up- Jon & Sally Tiven, Nov., 28. date, Howard Roberson, Sept., 18. Focus on Shell Mechanics, Howard Interviews Roberson, Sept., 31. KLH's Daniel von Recklinghausen, Gary Stock, Feb., 20. Willi Studer, Gary Stock, April, 34. Todd Rundgren, Jon & Sally Tiven, Nov., 28. Morton Gould, Gary Stock, Dec., 32.

Loudspeakers The Audio Interview: KLH's Daniel von Recklinghausen, Gary Stock, Feb., 20. Measuring Speaker Motion with a Laser, G.J. Adams, Part I, Aug., 26; Part II, Sept., 40; Addenda, Nov., 14.

Measurement All That Data: Tape Deck Frequency Re- sponse and Headroom, Howard A. Roberson, Jan., 24. Measuring Speaker Motion with a Laser, G. J. Adams, Part I. Aug., 26; Part II, Sept., 40; Addenda, Nov., 14.

Noise Reduction Dolby C-Type Noise Reduction, Joseph Hull, May, 20. National's New Noise-Reduction Chip, Ralph Hodges, Nov., 34.

Obituaries Alexander M. Poniatoff, Feb., 96. Paul G. A. H. Voigt, by Donald Aldous, June, 12.

Phono Cartridges More Than One Vertical Tracking Angle, Jon M. Risch and Bruce R. Maier, March, 21. The Phono Cartridge Electrical Output Network, Arnold Schwartz, March, 26.

AUDIO/DECEMBER 1981 99 Construction Projects Akai GX-F66RC Cassette Deck, Nov., Try a Rhombic FM Antenna, Richard J. 52. Kaufman, Jan., 24. AKG P25MD/24 Cartridge, Aug., 66. Build the AM Superloop Antenna, Amber Electronics Series 70 Amplifier, Richard Modafferi, Jan., 30. Feb., 52. Addendum Crossovers for Subwoofer Biamping, Audio Design Model One Preamp, John Marovskis Audio MIT-1 Phono Richard J. Kaufman, Aug., 28. Dec., 55. Cartridge (Equipment Profile, Nov. Sub-Bass on a Budget, A. L. New- Audio Interface CST-80 Step-Up 1981, 62), July, 49. comb, Aug., 36. Transformers, Dec., 65. Audio-Technica AT 6006a Safety Rais- AM Stereo: An FCC Fiasco!!, Leonard Digital Equipment er, Aug., 61. Feldman, July, 34. Hitachi PCM-V300 Digital Audio Re- Audio-Technica AT813 Microphone, corder, June, 42. Sept., 60. Antennas Sony PCM-F1 Digital Audio Processor, Bang & Qlufsen Beocord 9000 Cas- Try a Rhombic FM Antenna, Richard J. March, 48. sette Deck, July, 48. Kaufman. Jan., 24. Sony CDP-101 Digital Compact Disc Black Acoustics Night Loudspeaker, Build the AM Superloop Antenna, Player, Nov., 36. Aug., 52. Richard Modafferi, Jan., 30. Technics SV-P100 Digital Audio Cas- Cambridge Physics 310 Loudspeaker, sette Recorder, April, 46. Nov., 68. Book Reviews Carver TX-11 Tuner, Dec., 48. The Complete Guide to Car Audio, Directories Crown FM Two Tuner, April, 51. July, 92. Car Stereo Directory, July. dbx 20/20 Computerized EQ/Analyzer, The Compleat Beatles, July, 92. Amps/Equalizers, 17; Radios/Tape Jan., 52. The Rolling Stone Illustrated History of Players, 20; Speakers, 25; Index of Dennesen ABLT-1 Tonearm, July, 58. Rock & Roll, Aug., 46. Manufacturers, 33. Denon DR-330 Cassette Deck, March, Rock Record, Aug., 46. Annual Equipment Directory, Oct. 64. Radio Enters the Home, Aug., 46. Introduction, 31; Amplifiers, 33; Dual C844 Cassette Deck, July, 54. Microphones—An Anthology of Arti- Preamplifiers, 39; Tuners, 45; Re- Empire 600LAC Phono Cartridge, cles from the Pages of the Journal of ceivers, 47; Turntables, 50; Loud- June, 56. the Audio Engineering Society, Vol. speakers, 56; Tonearms, 81; Phono Fostex 250 Mixer/Recorder, Aug., 48. 1-27, Sept., 88. Cartridges, 83; Open-Reel Tape Fulton RS-1 Moving Coil Phono Car- The Complete Handbook of Videocas- Decks, 89; Cassette Decks, 91; tridge and MC-1 Moving Coil Trans- sette Recorders, Nov., 89. Digital Recorders/Processors, 95; former, Sept., 58. How to Get the Most Out of Your Re- Microphones, 96; Headphones, 102; GAM Electronics Stereo One FM An- cording and Playback System, Nov., Equalizers, 106; Index of Manufac- tenna, June, 64. 89. turers, 130. Goldring G-920 IGC Cartridge. Feb., Son of Directory, Nov. 50. Car Stereo Blank Tape, 30; Noise-Reduction Heathkit AA-1800 Stereo Power Amp, Car Stereo Directory, July, 17. Units, 32; Index of Manufacturers, 34. Sept., 53. AM Stereo: An FCC Fiasco!!, Leonard 1981 Annual Equipment Directory Ad- Hitachi FT-5500 Tuner, May, 58. Feldman, July, 34. denda, Jan., 69. Hitachi PCM-V300 Digital Audio Re- Delco-GM/Bose: Wizardry on Wheels, 1981 Car Stereo Directory Addenda, corder, June, 42. Ivan Berger, Dec., 36. Jan., 72. KEF 105 Series II Loudspeaker, Feb., 56. Cassettes & Cassette Decks Equipment Care Kenwood KX-900 Cassette Deck, New Cassettes Tested—Update, How- Tape Recorder Maintenance, Howard June, 58. ard A. Roberson, March, 37. A. Roberson, April, 32. KM Labs SP-100 Preamp, May, 66. Tape Recorder Maintenance, Howard Refocus on Demagnetization, Herman Luxman PD-375 Turntable, July, 61. A. Roberson, April, 32. Burstein, Sept., 36. Magnum 95FM Sleuth FM Antenna Basics of Magnetic Tape Performance, Amplifier, Aug., 60. Howard A. Roberson, Sept., 28. Equipment Profiles McIntosh MX-117 Tuner-Preamp, Refocus on Demagnetization, Herman Ace Audio 3900 Ground Eliminator, June, 50. Burstein, Sept., 36. Jan., 66. Mission 776 Preamp, June, 62. World's Most Expensive Cassette Ace Audio 4100 Filters, March, 63. Mission Electronics 777 Power Amplifi- Deck: Nakamichi 1000ZXL Limited, ADC Sound Shaper SA-1 Real Time er, Nov., 58. Ivan Berger, Sept., 42. Analyzer, Sept., 50. Mitsubishi DA-R35 Receiver, April, 54. Adcom Crosscoil XC/van den Hul MC M & K Satellite-1A and Volkswoofer-A Christmas Buying Guide, Dec , 45. Phono Cartridge, Jan., 63. Loudspeakers, April, 63.

AUDIO/DECEMBER 1982 87 NAD 6050C Cassette Deck, Jan., 58. Loudspeakers Nakamichi 700 ZXL Cassette Deck, Audio in England George W. Tillett, Jan., 44. Jan., 37. Nakamichi ZX-7 Cassette Deck, May, The Audio Interview: Rudy Bozak, Da- 54. vid Lander, May, 28. Nakamichi NR-100 Dolby C Noise-Re- Crossovers for Subwoofer Biamping, duction Processor, Aug., 62. Richard J. Kaufman. Aug., 28. Oracle Turntable, March, 54. Sub-Bass on a Budget, A. L. New- Ortofon TPO-70 Cartridge Wand and comb, Aug., 36. Thorens TD115 Turntable, Dec., 60. Seeing Sound with a Laser, Graham Pioneer PL-7 Turntable, Aug., 58. Bank, Sept., 44. Sansui AU-D11 Amplifier, Feb., 46. The Audio Interview: Godehard Shure SM85 Microphone, May, 62. Guenther, David Lander, Nov., 46. Shure V15 Type V Phono Cartridge, Nov., 63. Music and Recording Signet SK305 Electronic Stylus Clean- Understanding Equalization and Time er, May, 61. Constants, Herman Burstein, Feb., Sonus Dimension 5 Cartridge, March, 26. 61. The CX Noise Reduction System for Sony PCM-F1 Digital Audio Processor, Records, Louis A. Abbagnaro, Feb., March, 48. 32. Sony CDP-101 Digital Compact Disc The Audio Interview: Jimmy Miller, Player, Nov., 36. Paul Laurence, April, 38. Stanion 980LZS Cartridge, Feb., 54. MTV: Music Comes to Cable, Jon & Tandberg TCA 3002 Preamp, April, Sally Tiven, May, 36. 60. Get the Most Sound from 78's, Peter TEAC X-20R Open-Reel Recorder, Milton, June, 30. March, 68. "You're Hearing America," Tom Technics SH-50P1 Stylus Pressure Bingham, July, 42. Gauge, Jan., 66. Refocus on Demagnetization. Herman Technics SV-P100 Digital Audio Cas- Burstein, Sept., 36. sette Recorder, April, 46. Technics SU-A8 Preamp and SE-A7 Noise Reduction Power Amp, May, 50. The CX Noise Reduction System for Thorens TD115 Turntable and Ortofon Records, Louis A. Abbagnaro, Feb., TPO-70 Cartridge Wand, Dec., 60. 32. Yamaha P-850 Turntable, Sept., 56. The Audio Interview Ray Dolby, David Lander, July, 14. The Forum: One-Brand Systems, Joel Schwartz. March, 36. Obituaries Rudy Bozak. May, 28. Headphones Harry F. Olson, July, 85. Headphone Hints, Andrea Lynne Harold W. Lindsay, July, 85. Hecker, May, 40. Headphones: How They Work, Peter One-Brand Systems Reviews Milton, May, 44. Fisher System R-70, Nov., 44. JVC S-40 System, Sept., 40. History Kenwood Spectrum 70, July, 40. Audio in England, George W. Tillett, Sansui 6600 Super Compo, June, 38. Jan., 37. Yamaha Concert System 70, Aug., 40. The Audio Interview: Jimmy Miller, Paul Laurence, April, 38. Phono Cartridges: How They Work, The Audio Interview: Rudy Bozak, Da- Peter Milton, March, 42. vid Lander, May, 28. Audio's 35th Birthday, John P. Wol- Psychoacoustics konowicz, May, 33. Sonic Holography, Robert W. Carver, Get the Most Sound from 78's, Peter March, 26. (Included test Sound- Milton, June, 30. sheet.) The Audio Interview: Ray Dolby, David The Only Component You Can't Re- Lander, July, 14. place: Ears, Simeon Costa, Dec., The Audio Interview: Godehard 40. Guenther, Nov., 46. Sonic Holography, Robert W. Carver, Interviews March, 26. (Included test Sound- Jimmy Miller, Paul Laurence, April, 38. sheet.) Rudy Bozak, David Lander, May, 28. Ray Dolby, David Lander, July, 14. Tonearms: Which Tracks Best, Pivoted Godehard Guenther, David Lander, or Radial?, Pete; W. Mitchell, June Nov., 46. 24.

88 AUDIO/DECEMBER 1982 Sony CDP-701ES Compact Disc Play- er, Sept., 50. Technics SL-P10 Digital Audio Disc Player, Feb., 48. Toshiba XR-Z90 Compact Disc Player, Dec., 66.

Addenda Mass Tape Test: 77 Cassettes Rated, Directories First Look: Sony's Digital Compact Howard A. Roberson, Sept., 34. Car Stereo Directory, July. Disc Player, Leonard Feldman (Nov. Amps/Equalizers, 10; Radios/Tape 1982, 36), Jan., 64. Computers & Audio Players, 15; Speakers, 21; Index of Build a High-Performance THD Analyz- Computer-Aided Filter Design, Richard Manufacturers, 31. er, Robert R. Cordell (Part I, July Kaufman. Nov., 28. Annual Equipment Directory, Oct. 1981, 34; Part II, Aug. 1981, 14; Part Computer-Aided Audio Calculations, Introduction, 51; Digital Recorders/ III, Sept. 1981, 52; Addenda, Nov. Leonard Feldman, Nov., 32. Processors, 53; Compact Disc Play- 1981, 14), Feb., 16. TDS Computing, Gerald R. Stanley, ers. 54; Amplifiers, 56; Preamplifiers, Tonearm Geometry and Setup Demys- Nov., 38. 62; Tuners, 70; Receivers, 72; Turn- tified, Martin D. Kessler and B. V. tables, 81, Tonearms, 86; Phono Pisha (Jan. 1980, 76; Addenda, April Construction Projects Cartridges, 88; Open-Reel Tape 1980, 26), May, 48. How to Build a Low-Cost Stereo En- Decks, 96; Cassette Decks, 98; hancer, Richard J. Kaufman, Headphones, 103; Microphones, Amplifiers & Preamplifiers May, 58. 121; Equalizers, 126; Loudspeakers, Build a Stereo Headphone Amplifier, Build a Stereo Headphone Amplifier, 129; Index of Manufacturers, 218. Paul D. Chapman, May, 62. Paul D. Chapman. May, 62. Son of Directory, Nov. Battle of the Amps (Denon PRA-6000 Build a Poor-Man's Wow & Flutter Me- Blank Tape, 44; Noise-Reduction Preamplifier and POA-8000 Amplifi- ier, M. J. Salvati, June, 64. Units, 46; Index of Manufacturers, er, Sony Esprit TA-E900 Preamplifier Drive Your Walkman 'Round the Block, 48. and TA-N900 Amplifier), Leonard Richard Boryczewski, July, 70. 1982 Annual Equipment Directory Ad- Feldman June, 56. New Lows in Home-Built Subwoofers, denda, Jan., 31. Lorr Kramer and Greg Timbers, 1982 Car Stereo Directory Addenda, Antennas & FM Aug., 58. Jan., 36. 11 Outdoor FM Antennas Measured, Build a Center-Woofer Crossover, M. J. Leonard Feldman, Jan., 40. Salvati, Aug., 65. WFMT: Satellite Superstation, Rich Computer-Aided Filter Design, Richard Equipment Profiles Warren and Daniel Queen, Feb., 42. Kaufman, Nov., 28. Acoustat Trans-Nova Twin-200 Amplifi- er, March, 64. Book Reviews Digital Sound & Equipment ADS C2 Cassette Deck, July, 84. 21 Custom Speaker Enclosure Projects Japan Fair: The Art Advances, Gene Audio Control Richter Scale Bass EQ You Can Build, May, 89. Pitts, March, 32. and Crossover, Aug., 86. The Complete Handbook of Magnetic Confessions of a Digital Recordist, AudioSource EQ-One Equalizer and Recording, May, 89. Richard S. Burwen, Dec., 46. Spectrum Analyzer, Nov., 64. How to Install Your Own Stereo Sys- Hitachi DA-1000 Digital Audio Disc Audio-Technica AT666EX Disc Stabi- tem, Second Edition, May, 90. Player, Jan., 50; Postscript, May, 88. lizer, Jan., 54. Radio Shack Catalog, Dec., 30. Kyocera DA-01 Compact Disc Player, B & O MMC1 Phono Cartridge, Aug., Saga of the Vacuum Tube, Dec., 106. Aug., 70. 74. How to Make & Sell Your Own Record, Magnavox FD1000SL Compact Disc Boston Acoustics A40 Speaker, July, Dec., 106. Player, June, 86. 78. The Musician's Guide to Independent Mitsubishi DP-101 Compact Disc Crown PZM-30GP Pressure Zone Mi- Record Production, Dec., 106. Player, Aug., 82. crophone, March, 48. NEC CD-803E Compact Disc Player, Crown Power Line Four Amplifier, April, Car Stereo Nov., 50. 64. Car Stereo Directory, July, 10. Phase Linear 9500 Compact Disc Play- Denon DRA-400 Receiver, Feb., 62. Drive Your Walkman 'Round the Block, er, June, 76. Denon PRA-6000 Preamplifier, June, Richard Boryczewski, July, 70. Sharp DX-3 Compact Digital Audio 56. Disc Player, March, 44. Denon POA-8000 Amplifier, June, 56. Cassettes & Cassette Decks Sony CDP-101 Digital Audio Disc Play- ESB 7/06 Speaker, Nov., 72. Noise reduction: Side Benefits & Side er: Postscript, Jan., 64. Genesis 210 Speaker, Sept., 67. Effects, Howard A. Roberson, April, Sony PCM-701 Digital Audio Proces- Grace F-9E Ruby Phono Cartridge, 55. sor, April, 60. July, 90.

126 AUDIO/DECEMBER 1983 Hafler DH-160 Equalizer, April, 70. Sumiko MDC-800 Tonearm/Talisman S Music & Recording Harman/Kardon T60 Turntable, Jan., Cartridge, Sept., 72. WFMT: Satellite Superstation, Rich 58. Sumo Nine Amplifier, Dec., 70. Warren and Daniel Queen, Feb., 42. Hitachi DA-1000 Digital Audio Disc Talisman S Cartridge/Sumiko MDC- Home Studio: Do It the Pro Way, Jon Player, Jan., 50; Postscript, May, 88. 800 Tonearm, Sept., 72. Tiven, Sept., 45. JVC R-X80 Receiver, Nov., 68. Tandberg TPT 3001A Tuner and TIA The Audio Interview: Ray Manzarek, Koss CM/1030 Loudspeaker, May, 74. 3012 Amp, Nov., 80. Paul Laurence, Dec., 40. Kyocera R-851 Tuner-Amp, May, 82. Technics SL-P10 Digital Audio Disc Confessions of a Digital Recordist, Kyocera DA-01 Compact Disc Player, Player, Feb., 48. Richard S. Burwen Dec., 46. Aug., 70. Technics RS-M275X Cassette Deck, Linn-Sondek LP12 Turntable, Nov., 56. March, 68. Noise Reduction Luxman RX-103 Receiver, Sept., 80. Telarc Omnidisc Test Record, Feb., Noise Reduction: Side Benefits and Magnavox FD1000SL Compact Disc 60. Side Effects, Howard A. Roberson, Player, June, 86. Toshiba XR-Z90 Compact Disc Player, April, 55. MAS (Music and Sound) Mk. I Turnta- Dec., 66. ble MAS-282 Tonearm, Dec., 61. Vector Research VCX-800 Cassette Obituaries Mitsubishi DP-101 Compact Disc Play- Deck, Jan., 60. George W. Tillett, Feb., 14. er Aug., 82. C. Robert Fine, March. 72. NAD 9150 Tuner, March, 56. Etsuro Nakamichi, May, 36. Nakamichi Dragon Cassette Deck, Furniture May, 66. Hi-Fi Furniture: A Cabinetmaker's One-Brand System Reviews NEC CD-803E Compact Disc Player, Comparison, John Basinski, April, Aiwa S.P.A.N. V-1000G, March, 42. Nov., 50. 44. Lirpa A11-1N-1SKY, April, 40. Onkyo TX-61 Tuner-Amplifier, Feb., 54. Quad Component System, Dec., 32. Parasound EQf210 Equalizer, Jan., 68. Interviews Sanyo Pro-Ponent Audio-Video Sys- Phase Linear 9500 Compact Disc Play- Jim Kogen, David Lander, Feb., 36. tem, June, 72. er, June, 76. Amar Bose, David Lander, July, 74. Scott Slimcom 650SL, Jan , 48. Phase Linear DRS 900 Amplifier, Sept., Ray Manzarek, Paul Laurence. Dec., 61. 40. Phono Cartridges Realistic Systems P-10-MM Preamp, The Audio Interview: Jim Kogen, David May, 51. Lander, Feb., 36. Realistic 33-1080 Microphone, July, Loudspeakers Phase Testing in Phono Cartridges, 94. The Audio Interview: Amar Bose, David Kevin Byrne, March, 38. Rovox B710 MKII Cassette Deck, Lander, July, 74. March, 60. New Lows in Home-Built Subwoofers, Psychoacoustics Revox B261 Tuner, Dec., 56. Lorr Kramer and Greg Timbers, A Sense of Loss, Joseph Giovanelli, SAE E101 Equalizer, Dec., 76. Aug., 58. July, 72. Scott 438A Amplifier, Aug., 80. Build a Center-Woofer Crossover, M. J. How We Hear Direction, Denis Sharp DX-3 Compact Digital Audio Salvati, Aug., 65. Vaughan, Dec., 50. Disc Player, March, 44. TDS Computing, Gerald R. Stanley, Sherwood S-6010CP Tuner, April, 67. Nov., 38. Video Sound SIE Publishing "Critical Listening: An The RCA Videodisc Gets Stereo, Audio Training Course." July, 88. Charles Repka, Ed Freeman and Sony CDP-101 Compact Disc Player: Measurements Gopi Viehrotra, Feb., 30. Postscript, Jan., 64. 11 Outdoor FM Antennas Analyzed, Beta Hi-Fi: Better Audio for Video, Sony PCM-701 Digital Audio Proces- Leonard Feldman, Jan., 40. Leonard Feldman, May, 53. sor, April, 60. Phase Testing in Phono Cartridges, Sony Esprit TA-E900 Preamplifier, Kevin Byrne, March, 38. June, 56. Battle of the Amps, Leonard Feldman, Sony Esprit TA-N900 Amplifier, June, June, 56. 56. Build a Poor Man's Wow & Flutter Me- Sony CDP-701ES Compact Disc Play- ter, M. J. Salvati, June, 64. er Sept., 50. Mass Tape Test: 77 Cassettes Rated, SOTA Sapphire Turntable, June, 80. Howard A. Roberson, Sept., 34. Soundcraftsmen DC2214 Equalizer, Computer-Aided Audio Calculations, Dec., 66. Leonard Feldman, Nov., 32. Soundcraftsmen AE2000 Analyzer- TDS Computing, Gerald R. Stanley, Spectrumanalyzer, June, 90. Nov., 38. Spectal DMC-10 Preamplifier, Sept., How We Hear Direction, Denis 56. Vaughan, Dec., 50.

AUDIO/DECEMBER 1983 127 Marantz CD-73 Compact Disc Player, Feb., 66. Micro-Acoustics 630 Phono Cartridge, March, 67. Micro Seiki CD-M1 Compact Disc Player, Addenda 184; Preamplifiers, 190; Amplifiers, 202; June, 70. Drive Your Walkman 'Round the Block, Tuners, 212; Receivers, 215; Turntables, Monster Cable Alpha-1 Phono Cartridge, Richard Boryczewski (July 1983, 70), 222; Tonearms, 228; Phono Cartridges, Jan., 94. Jan., 9. 230; Open-Reel Tape Decks, 236; Blank NAD 5120 Turntable, Feb., 58. Build a Center-Woofer Crossover, M. J. Sal- Tape, 238; Noise-Reduction Units, 240; NAD 4155 Tuner, Dec., 75. vati (Aug. 1983, 65). Jan., 9. Cassette Decks, 242; Microphones, 248; Nakamichi RX-505 Cassette Deck, July, 50. Boston Acoustics MC-1vdH Phono Car- Headphones, 256; Equalizers, 261; Loud- Nakamichi TD-800 Car Stereo, Sept., 64. tridge (Equipment Profile, Feb. 1984, 61), speakers, 264; Company Addresses, Nakamichi BX-300 Cassette Deck, Nov., 56. March, 6. 352. Nitty Gritty 1.0 and VPI HW-16 Record Error Correction in the Compact Disc Sys- Cleaners, Nov., 100. tem, Dr. Toshi T. Doi (April 1984, 24), Equipment Profiles Ortofon MC 2000 Phono Cartridge and T July, 8. Accuphase C-280 Preamp and P-600 Amp, 2000 Transformer, Dec., 83. Akai CD-D1 CD Player (Equipment Profile, Aug., 42. Perreaux SM2 Preamp, July, 60. June 1984, 76), July, 8. Acoustical Physics Labs Acoustic Image II Pioneer F-90 Tuner, Jan., 98. Cassette Test Update: 12 Formulations, Loudspeaker, Dec., 65. Proton 300 Table Radio and Model 301 Howard A. Roberson (Sept. 1984, 47), Acoustic Research Turntable, July, 38. Speaker System, Dec., 94. Nov., 15; Dec., 5. Akai CD-D1 Compact Disc Player, June, 76; Revox B225 Compact Disc Player, Sept., Addenda, July, 8. 50. Book Reviews Allsop 3 Cassette Deck Cleaning System, SAE R102 Receiver, Dec., 58. 'Scuse Me While I Kiss the Sky, Oct., 41. May, 80. Sansui PC-X1 PCM Digital Processor, Jan., Handbook of Noise Control, Second Edi- Alphasonik A-265 Car Stereo Amplifier, 76. tion, Oct., 41. July, 57. Sanyo DAD 8 Compact Disc Player, April, The Yardbirds, Oct., 41. Alpine 7347 Car Stereo, March, 60. 64. ASC AS-6004/S Open-Reel Recorder, Jan., Sears 564.97500350 Compact Disc Player, Car Stereo 82. April, 56. 10th Annual Car Stereo Directory, May, 39. Audible Illusions Modulus Preamplifier, Sherwood S-2680CP Receiver, June, 62. Sony Car CD Player: On the Road Ahead, Nov., 62. Shure V15 Type V Cartridge with Souther Leonard Feldman, July, 26. Audio Research SP-10 Preamplifier and D- SLA-3 Tonearm, May, 70. 70 Amplifier, June, 84. Sony CDP-610ES Compact Disc Player, Construction Audio-Technica AT160ML Cartridge, Sept., Nov., 88. Performance-Check Your Amp and 72. Soundcraftsmen PCR800 Amplifier, Aug., Preamp. M. J. Salvati, Part I, Feb., 42; Boston Acoustics MC-1vdH Phono Car- 55. Part II, March, 42. tridge, Feb., 61; Addenda, March, 6. Souther SLA-3 Tonearm with Shure VI5 Bruel & Kjaer Type 4003 and Type 4007 Type V Cartridge, May, 70. Digital Sound & Equipment Microphones, Nov., 78. Spectrascan BPA-100B Amplifier, July, 66. The Audio Interview: Sheffield's Doug Sax The Carver Receiver, June, 52. Tandberg TCD 3014 Cassette Deck, Sept., and Lincoln Mayorga, David Lander, conrad-johnson PV-5 Preamp, Aug., 68. 58. Jan., 62. dbx 4BX Dynamic-Range Expander, Feb., Teac Z-7000 Cassette Deck, May, 84. Error Correction in the Compact Disc Sys- 50. Technics SH-8055 Graphic EQ/RTA, March, tem, Dr. Toshi T. Doi, April, 24; Addenda, Dennesen Polaris Indoor FM Antenna, Dec., 54. July, 8. 91. Technics SL-P8 and SL-P7 Compact Disc Philips Oversampling System for Compact Denon DN-3000F Compact Disc Player, Players, April, 48. Disc Decoding, Wayne Schott, April, 32. April, 36. van den Hul Type I Phono Cartridge, July, What Makes a CD Player Professional?, Discwasher D'Mag Cassette Deck Demag- 43. Leonard Feldman, April, 36. netizer, May, 82. van den Hul Type III Phono Cartridge, July, Sony Car CD Player: On the Road Ahead. Hafler DH-220 Power Amplifier, Feb., 54. 71. Leonard Feldman, July, 26. Harman/Kardon CD491 Cassette Deck, VPI HW-16 and Nitty Gritty 1.0 Record The Audio Interview: Jack Renner, David March, 50. Cleaners, Nov., 100. Lander, July, 30. Heybrook TT2 Turntable and Tonearm, Yamaha M-70 Power Amplifier, Jan., 90. Phase Filter for Digital, Richard J. Kaufman. Nov., 95. Yamaha CD-X1 Compact Disc Player, Aug., July, 34; On the Testbench, Richard C. Hitachi DA-800 Compact Disc Player, May, 60. Heyser, July, 37. 76. Yamaha NS-2000 Loudspeaker, Sept., 78. Innovative Techniques ITC-1 Speaker, Directories June, 97. History of Hi-Fi Car Stereo Directory, May. JVC R-X500B Receiver, Dec., 50. Olde-Tyme High-Tech Electronic Cylinder Radios/Tape Players, 39; Amps/Equaliz- Linn Asack Cartridge and Ittok LVII Tonearm System, Fred Petras, May, 66. ers/Crossovers, 45; Speakers, 53; Com- March, 70. History of Magnetic Recording Robert An- pany Addresses, 64. Lirpa Si-O Compact Disc Player, April, 40. gus, Part I, Aug., 27 (inciudes Soung- Annual Equipment Directory, Oct. Luxman KX-102 Cassette Deck, March, 76. sheet); Part II, Sept., 33. Introduction, 181; Digital Recorders Pro- Luxman DX-103 Compact Disc Player, The Untold Story Behind the Bose-CU cessors, 182; Compact Disc Players, Nov., 69. Case, David Lander, Dec., 42.

AUDIO/DECEMBER 1984 143 Interviews Sheffield's Doug Sax and Lincoln Mayorga, David Lander, Jan., 62. Jack Renner, David Lander, July, 30.

Loudspeakers Polk's SDA Speakers: Designed-In Stereo, Matthew Polk, June, 32. Speaker Impedance: More Complex Than One Number, Richard C. Heyser, June, 42. Music Performance & Recording The Audio Interview: Sheffield's Doug Sax and Lincoln Mayorga, David Lander, Jan., 62. Sound Reinforcement for the Amateur, Glen Ballou, March, 36. The Audio Interview: Jack Renner, David Lander, July, 30. History of Magnetic Recording, Robert An- gus, Part I, Aug., 27 (includes Sound- sheet); Part II, Sept., 33. Dynamic Bias Control with HX Professional. J. Selmer Jensen and S. K. Pramanik, Aug., 34. Rock 'n' Roadies: Traveling with Journey, Pam Alloway, Dec., 32. Home Studio: Do It the Pro Way, Part II, Jon & Sally Tiven, Dec., 46.

Olde-Tyme High-Tech Electronic Cylinder System, Fred Petras, May, 66.

Phono Cartridges Bringing Trackability Home, Robert Kita, Jan., 68.

Psychoacoustics Polk's SDA Speakers: Designed-In Stereo, Matthew Polk, June, 32. Speaker Impedance: More Complex Than One Number, Richard C. Heyser, June, 42.

Tape & Tape Recorders History of Magnetic Recording, Robert An- gus, Part I, Aug., 27 (includes Sound- sheet); Part II, Sept., 33. Dynamic Bias Control with HX Professional, J. Selmer Jensen and S. K. Pramanik, Aug., 34. How Important Is Tape Azimuth?, Herman Burstein, Sept., 40. Cassette Test Update: 12 Formulations, Howard A. Roberson, Sept., 47; Adden- da. Nov., 15; Dec., 5.

Tonearms & Turntables NAD's Floppy Tonearm, B. E. Edvardsen, P. W. Mitchell, and J. Janda, Feb., 34.

Video Sound At Last—Stereo TV, Leonard Feldman, June, 47. VHS Hi-Fi: Five Units Tested, Leonard Feld- man, Nov., 42.

144 AUDIO/DECEMBER 1984 Nakamichi OMS-7 Compact Disc Player Aug., 70. NEC T-6 Tuner, Dec., 78. Onkyo T-9090 Tuner, May, 68. 130, 372; Digital Processors, 133; Com- Parasound DR40 Receiver, April, 99. Addendum pact Disc Players, 134; Preamplifiers, Pioneer SX-V90 Audio/Video Receiver, Jan., 102. Frequency Contouring for Image Enhance- 142; Amplifiers, 156; Tuners, 171; Receiv- ment, Richard J. Kaufman (Feb. 1985, ers, 175; Turntables, 179; Tonearms, 191; Pioneer CLD-900 Compact Disc/Laserdisr 34), April, 37. Phono Cartridges, 194; Cassette Decks, Player, Feb., 52. 205; Open-Reel Tape Decks, 212; Blank Pioneer FEX-95 Car Stereo, May, 80. Amplifiers Tape, 215; Microphones, 218; Head- Pioneer F-99X Tuner, Nov., 52. The Perfect Amp: Zero Distortion, George V. phones, 228; Equalizers, 234; Signal Pro- Proton 440 Tuner, July, 70. Dajan, April, 42. cessors, 242; Hi-Fi VCRs, 245; Cross- Quad ESL 63 Loudspeaker, June, 110. overs, 247; Loudspeakers, 251; Compa- Revox B215 Cassette Deck, July, 44. Book Reviews ny Addresses, 299; Audio Yellow Pages, Rotel RC-870 Preamplifier, Aug., 96. Spatial Hearing, Jan., 154. 306. Sansui C-2301 Preamplifier and B-2301 Catch a Fire: The Life of Bob Marley, Jan., Amplifier, April, 82. 169. Equipment Profiles/Auricles Shure V15 Type V-MR Phono Cartridge/Nak- Unsung Heroes of Rock 'n' Roll, Jan., 170. Acoustic Research AR98LS Speaker, Jan., amichi Dragon-CT Tonearm, April, 70. POPS: Paul Whiteman, King of Jazz, April, 94. Signet TK10ML Phono Cartridge, Feb., 65. 110. Acoustic Research SRC Stereo Remote Signet TK10ML Phono Cartridge, Feb., 65. Album Cover Album 3, April, 110. Control, Jan., 112. Sony D-5 Portable Compact Disc Player, The Record Producers, April, 111. ADS CD3 Compact Disc Player, June, 88. March, 42. All You Need Is Ears, April, 111. Akai GX-R99 Cassette Deck, June, 94. Sony CDP-650ESD Compact Disc Player, Showtime at the Apollo, June, 14. Amber Model 7 Tuner and Model 50b Am- July, 56. New Rock Record, June, 16. plifier, Aug., 76. Sony DAS-702ES D/A Converter, July, 58. Slowhand, The Story of Eric Clapton, June, 16. Apogee Acoustics Scintilla Loudspeaker, Sony CDP-620ES Compact Disc Player, Dec., 84. Sept., 62. Apt Holman Preamplifier Two, Aug., 90. Sony PCM-501ES Digital Audio Processor, Car Stereo Audiovox/Hi-Comp HCC-1250 Car Stereo, Sept., 84. Car Stereo: Getting the Noise Out, Daniel May, 74. Stax SR-Lambda Professional Earspeaker, Sweeney, May, 60. Bose Roommate Loudspeaker, Nov., 90. Jan., 116. 11th Annual Car Stereo Directory, May, 89. Bryston 4B Amplifier, Nov., 80. Streets Electronics Model 950 Power Ampli- The Carver Compact Disc Player, March, fier, Jan., 80. Construction Projects 74. Technics SP-10MK3 Turntable, Feb., 58. Frequency Contouring for Image Enhance- Celestion SL-600 Loudspeaker, Feb., 78. Technics RS-B100 Cassette Deck, March, ment, Richard J. Kaufman, Feb., 34; Ad- Crown PZM-180 Microphone, March, 88. 94. dendum, April, 37. dbx 10/20 Computerized Equalizer/Analyz- Technics SL-P3 Compact Disc Player, Aug., The DNR Noise Reducer: How It Works and er, Jan., 90. 84. How to Build It, Leonard Feldman and R. Electron Kinetics Eagle 2 Amplifier, Sept., Thiel CS3 Speaker, Nov., 60. Aryana, Feb., 40. 70. ULTRX R100 Receiver, April, 104. Build a High-Performance Noise Reducer, Esoteric Sound Re-Equalizer, Nov., 70. Yamaha R-9 Receiver, Dec., 60. John H. Roberts, Feb., 46. Hitachi DA-600 Compact Disc Player, Feb., Tailor-Made Bass, Richard J. Kaufman, 71. FM Reception Aug., 56. Intraclean S-711 Head Cleaner and C-911 FM Fidelity: Is the Promise Lost?, Dennis Cassette Cleaner, Dec., 96. Ciapura, March, 48. Designs for Listening, David Lander, JBL Ti Series Loudspeakers, Aug., 100. FM Fidelity: One Station's Response, Gor- March, 60. Kenwood DP-1100B Compact Disc Player, don S. Carter (of WFMT), March, 53. Jan., 84. The Problem with FM, Eric Small and Robin Digital Sound & Equipment Krell PAM-3 Preamplifier and KSA-50 Am- Lanier, March, 56. Living with CDs, Leonard Feldman, Jan., plifier, Dec., 90. 68. Mark Levinson ML-10A Preamplifier and Gray Market: Is It Worth the Price?, Daniel A New CD Test Standard, Leonard Feld- ML-9 Amplifier, Aug., 60. C. Sweeney, Sept., 54. man, Dec., 54. McIntosh MC 2002 Amplifier, April, 56. Meridian MCD Compact Disc Player, June, Interviews Directories 100. John Hammond, Ted Fox, Jan., 56. Car Stereo Directory, May. Mission DAD-7000R Compact Disc Player, John Charles Cox, F. Alton Everest, Jan., 74. Radios/Tape Players, 89; Amps/Equaliz- Dec., 70. Jerry Wexler, Ted Fox, Part I, May, 52; Part ers/Crossovers, 100; Speakers, 108; NAD 7130 Receiver, Sept., 76. II, June, 62. Company Addresses, 131. Nakamichi Dragon-CT Turntable, April, 62. Clive Davis, Ted Fox, Part I, July, 28; Part II, Annual Equiptnent Directory, Oct. Nakamichi Dragon-CT Tonearm/Shure V15 Aug., 50. Introduction, 129; Category Color Codes, Type V-MR Phono Cartridge, April, 70. Nile Rodgers, Ted Fox, Sept., 42.

AUDIO/DECEMBER 1985 135 Mitch Miller, Ted Fox, Part I, Nov., 40; Part Obituary II, Dec., 42. Norman Eisenberg, Nov., 10.

London Letter Phono Cartridges Pengelly Cylinder Player, Donald Aldous; Controlling MC Cartridge Response, Mile HFNRR Awards Reinstated; May, 47. Nestorovic and Glenn White, Jan., 71. Nestorovic's MCC Network: On the Test- Loudspeakers bench, B. V. Pisha, Jan., 72. Forum: Woofing It Up, Gregory R. Jones, April, 30. Psychoacoustics The Magic Speaker from Acoustic Re- Frequency Contouring for Image Enhance- search, Kenneth L. Kantor, July, 34. ment, Richard J. Kaufman, Feb., 34; Ad- Tailor-Made Bass, Richard J. Kaufman, dendum, April, 37. Aug., 56. The Magic Speaker from Acoustic Re- search, Kenneth L. Kantor, July, 34. Microphones Microphones: Start with the Basics, Robert Tape & Tape Recorders F. Herrold, April, 46. The Whys and Hows of Cassette Equaliza- tion, Herman Burstein, June, 72. Noise Reduction Cassette Quality: What Is the Industry Do- The DNR Noise Reducer: How It Works and ing?, Mike Jones, June, 82. How to Build It, Leonard Feldman and R. Aryana, Feb., 40. Testing Build a High-Performance Noise Reducer A New CD Test. Standard, Leonard Feld- John H. Roberts, Feb., 46. man, Dec., 54.

136 AUDIO/DECEMBER 1985 Infinity RS 4B Loudspeaker I Auricle"), April, 82. Kenwood KRC-999 Car Stereo, April, 52; Addendum, Oct., 29. Kinergetics KPA 1 Preamplifier Aug., 62. Addenda 275; Hi-Fi VCRs, 279; Loudspeakers, Klipschorn Loudspeaker, Nov., 64. Museum of Broadcasting: The Show Place, 283; Company Addresses, 397. Lirpa Distortek J-X33B Rack System ("Auri- David Lander (Jan. 1986, 58), May, 8. cle"), April, 80. The Audio Interview: Bob Thiele, Ted Fox Equipment Profiles/Auricles Magnavox FD30403L ("Auricle: One Listen- (Feb. 1986, 36), May, 8. Adcom XC-MR II ("Auricle: A Clutch of Car- er's CD Player Survey"), Jan., 120. Kenwood KRC-999 Car Stereo (Equipment tridges"), Feb., 86. Magnum Dynalab FT 101 Tune, June, 108. Profile, April 1986, 52), Oct., 29. Akai CD-M88 Compact Disc Player, March, Marantz PMD430 Portable Cassette Deck, 76. July, 94. Book Reviews Alpine 5900 Car Stereo Compact Disc Play- Maxell UR, UDS-I, XLI, XLI-S, UDS-II, XLII, The New Sound of Stereo, June, 53. er. Feb., 70. XLII-S, and MX Cassette Tapes ("Cas- San Francisco Nights, June, 53. Alpine 7374 Car Stereo, April, 62. sette Test Update"), June, 74. Principles of Digital Audio, June, 54. Audio Control Phase Coupled Activator, McLaren 402 Preamplifier and 702 Amplifi- Beatle! The Pete Best Story, June, 57. Sept., 80. er, Dec., 68. Bookcassettes (from Brilliance Corp.), Audio Research SP-11 Preamplifier ("Auri- Memorex MRX I, HBII, HBXII, and CDXII June, 57. cle"), Sept., 92. Cassette Tapes ("Cassette Test Up- In One Lifetime: The Life of William Grant Audio Research D-250MKIIS Amplifier date"), June, 74. Still, June, 58. ("Auricle"), Dec., 122. Meridian MCD ("Auricle: One Listener's CD AudioSource RTA-One Real-Time Analyzer Player Survey"), Jan, 120. Car Stereo ("Auricle"), Dec., 128. Meridian Professional ("Auricle: One Listen- Detroit Steers a Collision Course on Car Azden WMS-10 Wireless Microphone. Nov., er's CD Player Survey"), Jan., 120. Stereo, David Lander, April, 46. 110. Michell GyroDec Turntable, Dec., 82. Music on the Move: The Keys to Car Stereo, Bang & Olufsen Beogram CD X Compact Mission DAD-7000R ("Auricle: One Listen- Ivan Berger and Hans Fantel, May, 52. Disc Player. March, 54. er's CD Player Survey"), Jan., 120. 12th Annual Car Stereo Directory, May, 95. BASF LH-MI, CR-EII, and CR-MII Cassette Mitsubishi DP-409R ("Four Multi-Disc CD Tapes ("Cassette Test Update"), June, 74. Players"), June, 62. Cartridges Monster Cable X-Terminator Speaker Plugs A Clutch of Cartridges ("Auricle"), Anthony Bryston 5B Preamplifier and TF-1 Trans- ("Auricle"), Jan., 118. H. Cordesman, Feb., 86. former, Sept., 60. Nakamichi OMS-5 ("Auricle: One Listener's Classe Audio DR-3 Amplifier, July, 76. CD Player Survey"), Jan., 120. Compact Disc Players conrad-johnson Premier Five Amplifier, Nakamichi TD-700 Car Stereo, March, 58. One Listener's CD Player Survey ("Auri- Aug., 50. Nakamichi CR-7A Cassette Deck, Aug., 42. cle"), Anthony H. Cordesman, Jan., 120. dbx DX3 Compact Disc Player, Nov., 82. NEC CD-705E ("Auricle: One Listener's CD Change for the Better: Four Multi-Disc CD Decca Super Gold ("Auricle: A Clutch of Player Survey"), Jan., 120. Players, Leonard Feldman, June, 62. Cartridges"), Feb., 86. NEC CD-650E Compact Disc Player, Dec., Denon DCD-1800 ("Auricle: One Listener's 112. Construction Projects CD Player Survey"), Jan., 120. Nikko NCD-600 ("Four Multi-Disc CD Play- Build a Slow-Start Circuit, Daniel Dufresne, Denon DCR-7600 Car Stereo. April, 70. ers"), June, 62. Jan., 66. Denon DX3, DX4, HD6, HD7, HD8, and Onkyo M-510 Amplifier ("Auricle"), Aug., Build a Stereo/Balance Test Switch, Her- HDM Cassette Tape ("Cassette Test Up- 69. man Burstein, July, 46. date''), June, 74. Oracle Delphi II Turntable ("Auricle"), June, Build a Passive Image Enhancer. Richard J. Denon DCD-1500 Compact Disc Player. 130. Kaufman, Nov., 60. June, 116. PDMagnetics FERRO, Tri-Oxide FERRO Build a Live End/Dead End Listening Discrete Technology LSI ("Auricle: One Lis- HG, 500 Crolyn, 500 Crolyn HG, and Room, Part I, William R. Hoffman. Dec., tener's CD Player Survey"), Jan., 120. 1100 Metal HG Cassette Tapes ("Cas- 62. Discrete Technology LSI MK.II Compact sette Test Update"), June, 74. Disc Player, Nov., 102. Pioneer PD-9010X Compact Disc Player, Directories Electrocompaniet MC-2 Pre-Preamp ("Auri- Feb., 78. Car Stereo Directory, May. cle"), Jan., 114. Pioneer PD-M6 ("Four Multi-Disc CD Play- Amplifiers/Equalizers, 95; CD Players, Fried Studio IV Speaker, Feb., 58. ers"), June, 62. 106; Radios/Tape Players, 107; Speak- Fuji GT-1, FR-II, GT-II Cassette Tapes Proton D940 Receiver, July, 86. ers, 115; Company Addresses, 136. ("Cassette Test Update"), June, 74. RAKS High Dynamic, High Dynamic I, and Annual Equipment Directory, Oct. Garrott Decca ("Auricle: A Clutch of Car- High Dynamic II Cassette Tapes ("Cas- Introduction, 153; Digital Processors, tridges"), Feb., 86. sette Test Update"), June, 74. 157; Compact Disc Players, 158; Amplifi- Goldbug Clement II Cartridge and Zeta Revox B225 ("Auricle: One Listeners CD ers, 170; Preamplifiers, 186; Tuners, 201; Standard Tonearm, Dec., 90. Player Survey"), Jan., 120, Receivers, 204; Turntables, 210; Phono Grace G-747 Tonearm and F-9E Super Car- Revox B286 Tuner/Preamplifier, Dec., 102. Cartridges, 219; Tonearms, 228; Open- tridge, Jan., 94. Robertson Sixty Ten Amplifier, Feb., 52. Reel Tape Decks, 233; Cassette Decks, Grado Signature 8MR ("Auricle: A Clutch of Scotch CX, XCI, XSII, and XSMIV Cassette 236; Blank Tape, 244; Microphones, 248; Cartridges"), Feb., 86. Tapes ("Cassette Test Update"), June, Headphones, 259; Equalizers, 264; Am- Hafler DH-330 FM Tuner, Nov., 74. 74. bience & Surround-Sound Processors, Harman/Kardon CH160 Car Stereo, May, Sherwood CRD-180 Car Stereo, May, 72. 271; Signal Processors, 272; Crossovers, 66. Shure SM91 Microphone, June, 122.

AUDIO/DECEMBER 1986 167 SME V Tonearm and Talisman Virtuoso DTi Jerry Leiber & Mike Stoller, Ted Fox, Part I, Obituaries Cartridge, June, 88. Nov., 52; Part II, Dec., 54. Frank Hoffman, Feb., 21. Sony D-5 ("Auricle: One Listener's CD Play- Herb Horowitz, April, 40. er Survey"), Jan., 120. Lirpa C. G. "Mac" McProud, Sept., 6. Sony CDX-A10 ("Four Multi-Disc CD Play- The Lirpa Turbo Steamtable, Prof. I. Lirpa A. Stewart Hegeman, Nov., 26. ers"), June, 62. and Ivan Berger, April, 42. Jack Trux. Dec., 18. Sony HF, HF-S, UCX, UCX-S, and Metal-ES Lirpa Distortek J-X33B Rack System ("Auri- Cassette Tapes ("Cassette Test Up- cle"), April, 80. date"), June, 74. Psychoacoustics SOTA Star Sapphire Turntable, June, 98. London Letter A History of Binaural Sound, John Sunier, Soundstream TC 308 Car Stereo, Sept., 66. Masterful Remastering ("Jazz Classics in March, 36. Talisman Alchemist IIIS ("Auricle: A Clutch Stereo"), Donald Aldous, Nov., 9. The Filters in Our Ears, F. Alton Everest, of Cartridges"), Feb., 86. Sept., 50. Talisman Virtuoso DTi Cartridge and SME V Loudspeakers Tonearm, June, 88. Confessions of a Loudspeaker Salesman Tandberg 3008A Preamplifier and 3009A Harold Weinberg and Robert Angus, Round-Up Reviews Amplifier, June, 68. March, 48. One Listener's CD Player Survey ("Auri- TDK D, AD, SA, SA-X, and HX-S Cassette cle"), Anthony H. Cordesman, Jan., 120. Tapes ("Cassette Test Update"), June, Measurements A Clutch of Cartridges ("Auricle"), Anthony 74. Femtowatts Take Over, Leonard Feldman, H. Cordesman, Feb., 86. Technics EPC-205CMk4 Cartridge, Jan., Nov., 80. Change for the Better: Four Multi-Disc CD 78. Players, Leonard Feldman, June, 62. Technics EPC-305MCII Cartridge and SH- Microphones Cassette Test Update: 49 Formulations, 305MC Transformer, Aug., 56. Matching a Mike, Howard A. Roberson, Howard A. Roberson, June, 74. Technics SH-8066 Equalizer, Nov., 94. Aug., 40. Terk 8403 FM Antenna, Jan., 89. Triad FX, EM-X, and MG-X Cassette Tapes Music Performance & Recording Tape & Tape Recorders ("Cassette Test Update"), June, 74. Fitting Revivals: The Mosaic Reissues, Forum: Tape Measure, Leonard Feldman, Uher CR 160 AV Portable Cassette Record- Frank Driggs, June, 136. Jan., 39. er, Jan., 104. Zydeco Music: Hat as a Pepper, Ted Fox, Cassette Test Update: 49 Formulations, Yamaha CD-2 ("Auricle: One Listener's CD Sept., 42. Howard A. Roberson, June, 74. Player Survey"), Jan., 120. London Letter: Masterful Remastering Deck-to-Deck Matching and NR: Straignt- Yamaha CD-3 ("Auricle: One Listener's CD ("Jazz Classics in Stereo"), Donald Al- ening the Mirror, Howard A. Roberson, Player Survey"), Jan., 120. dous, Nov., 9. Aug., 30. Yamaha K-1020 Cassette Deck, March, 68. Yamaha YGE-600 Car-Stereo Equalizer ("Auricle"), May, 81. Zeta Standard Tonearm and Goldbug Clement II Cartridge, Dec., 90.

FM Reception FMX: Long Distance Stereo, Clean as Mono, Leonard Feldman, May, 60.

Forum Tape Measure, Leonard Feldman, Jan., 39.

Headphones A History of Binaural Sound, John Sunier, March, 36.

History of Audio Museum of Broadcasting: The Show Place, David Lander, Jan., 58; Addendum, May, 8. A History of Binaural Sound, John Sunier, March, 36. Confessions of a Loudspeaker Salesman, Harold Weinberg and Robert Angus, March, 48. Fitting Revivals: The Mosaic Reissues, Frank Driggs, June, 136.

Interviews Bob Thiele, Ted Fox, Feb., 36; Addendum, May, 8. Phil Ramone, Ted Fox, July, 38.

168 AUDIO/DECEMBER 1986 Electrocompaniet EC-1 Preamplifier, Nov., 118. Eminent Technology Tonearm 2 and Talis- man Virtuoso B Cartridge, Feb., 80. EPI Stat 450 Speaker, Feb., 70. Forte Audio Model 1 Amplifier, Dec., 90. Fuji FR-I Super and FR-II Super ("Mass Book Reviews The New Chip Set: The Essence of the Mag- Cassette Test"), Nov., 50. An Autobiography of Black Jazz by Demp- navox ICs, Prasanna Shah, June, 76. Grado XTE + 1, Signature 8MX, and Signa- sey J. Travis, April, 100. Exclusive Test Report: Four DAT Recorders ture MCX Cartridges ("Auricle"), June, The Penguin Guide to Compact Discs, Cas- (Sony DTC-1000ES, Technics SV-D1000, 144. settes and LPs by E. Greenfield, R. Lay- Luxman KD-117 Prototype, and Mitsubi- Hafler MA-1 ("8 Car Amps Tested"), May, ton, and I. March; April, 101. shi Car Player Prototype), Leonard Feld- 42. The Continuous Wave: Technology and man, July, 36. Hafler XL-280 Amplifier, Nov., 126. American Radio, 1900-1932 by Hugh G. The R-DAT Standard, Leonard Feldman, Harman/Kardon CA260 ("8 Car Amps Test- J. Aitken, April, 102. July, 38. ed"), May, 42. Acoustical Measurements, Methods and In- Forum: Unbalancing Act/Update (CBS Infinity MRA-150 ("8 Car Amps Tested"), strumentation edited by Harry B. Miller, Copy-code system), Leonard Feldman, May, 42. April, 102. Aug., 28. JVC RX-9V A/V Receiver, March, 68. Handbook of Recording Engineering by Do CDs Sound Different?, John Eargle, Kyocera DA-710CX Compact Disc Player, John Eargle, April, 104. Nov., 62. Sept., 98. Auditory Perception (manual and audio Dithered Linearity CD Test Signals, Leonard Mark Levinson No. 20 Mono Amplifie,. Aug., cassettes) by F. Alton Everest, Sept., 46. Feldman, Dec., 110. 62. Introduction to Magnetic Recording edited Linear Power Model 1002 ("8 Car Amps by Robert M. White, Sept., 46. Directories Tested"), May, 42. I Remember—Eighty Years of Black Enter- Car Stereo Directory, May. Linn Axis Turntable, May, 74. tainment, Big Bands, and the Blues by Amplifiers/Equalizers, 101; Compact Disc Linn Basik LVX Tonearm and K9 Cartridge, Clyde Bernhardt and Sheldon Harris, Players, 112; Radios/Tape Players, 114; Nov., 100. Sept., 46. Speakers, 121; Company Addresses, Luxman KD-117 Prototype ("Exclusive Test The Recording Angel: Explorations in Pho- 144. Report: Four DAT Recorders"), July, 36. nography by Evan Eisenberg, Sept., 50. Annual Equipment Directory, Oct. Luxman LV-109 Integrated Amplifier, Sept., Introduction, 167; Compact Disc Players, 72. Broadcasting 172; Digital Recorders/Processors, 184; Magnavox CDB650 Compact Disc Player, Nine Stations—One Antenna, Ivan Berger, Amplifiers, 186; Preamplifiers, 206; Tun- March, 60. Jan., 58. ers, 224; Receivers, 228; Turntables, 234; Maxell XLI-S, XLII-S, and MX ("Mass Cas- Interview: Richard L. Edwards, WINZ Tonearms, 240; Phono Cartridges, 244; sette Test"), Nov., 50. Broadcast Engineer, Lewis T. Fineman, Cassette Decks, 256; Open-Reel Tape Memorex dBS, MRX I, HB II, HBX II, and Jan., 61. Decks, 263; Blank Tape, 263; Micro- CDX II ("Mass Cassette Test"), Nov., 50. Dept. of Amplification (Major Armstrong and phones, 267; Headphones, 282; Equaliz- Mission PCM-7000 Compact Disc Player, FM development), John K. Mitchell, Oct., ers, 288; Ambience & Surround-Sound Aug., 80. 121. Processors, 296; Signal Processors, 300; Mitsubishi Car Player Prototype ("Exclusive FMX: Technology Update, Ron Schneider- Crossovers, 302; Hi-Fi VCRs, 307; Loud- Test Report; Four DAT Recorders"), July, man, Oct., 127. speakers, 310; Company Addresses, 36. A Life in Radio Broadcasting, Mortimer 449. Monster Cable Alpha 2 Cartridge, April, 90. Goldberg, Dec., 62. NAD 7220PE Receiver, Sept., 86. Equipment Profiles/Auricles Nakamichi SR-3A Receiver Jan., 76. Car Stereo Accuphase DP-70 Compact Disc Player Nikko Gamma 30 Tuner, Jan., 110. 8 Car Amps Tested (ADS PQ10, Carver M- ("Auricle"), Dec., 128. Onkyo P-308 Preamplifier and M-508 Ampli- 240, Hafler MA-1, Harman/Kardon ADS PQ10 ("8 Car Amps Tested"), May, 42. fier ("Auricie"), Sept., 112. CA260, Infinity MRA-150, Linear Power ADS CD4 Compact Disc Player, June, 108. Onkyo DT-2001 Digital Audio Tape Record- Model 1002, Proton D275, and Sound- Akai CD-A70 Compact Disc Player, June, er, Dec., 78. stream D200), Leonard Feldman and Ivan 124. Pioneer SA-V70 Amplifier, Jan., 98. Berger, May, 42. AR Powered Partners Active Speakers Pioneer VSX-5000 A/V Receiver, June, 136. Car Stereo Noise: A Process of Elimination, ("Auricle"), Feb., 88. Proton D275 ("8 Car Amps Tested"), May, Mike Ergo, May, 51. AR Model X-10 Receiver, Dec., 96. 42. 13th Annual Car Stereo Directory, May, 101. Audio Control Richter Scale Series III Ana- Rane PE 15 Mono Equalizer April, 82. lyzer/EQ/Crossover, Dec., 116. SAE A202 Amplifier, July, 58. Construction Projects Audio-Technica AT-9400 Stereo Micro- Shure HTS5000 Surround Audio Processor, Build a Live End/Dead End Listening Room, phone, Nov., 132. Feb., 60. Part II, William R. Hoffman, Jan., 55. Audix UD-200S Microphone, June, 132. Shure D6000 Compact Disc Player, April, Nulling Out Amp Distortion, David Hafler, A.V.A. (Audio by Van Alstine) Transcen- 74. Feb., 46. dence 250 Series Two Amplifier, June, SKC GX, AX, QX, and ZX ("Mass Cassette The Magnavox 16-Bit Series: Making Good 118. Test"), Nov., 50. Players Better, Walter G. Jung, June, 74. Azden GM-P5L Cartridge, Jan., 104. Sony DTC-1000ES ("Exclusive Test Report: Build a Polarity Inverter, Richard J. Kauf- Carver M-240 ("8 Car Amps Tested"), May, Four DAT Recorders"), July, 36. man, Dec., 70. 42. Sony CDP-705ESD Compact Disc Player, Build an Op-Amp Power Supply, Richard J. CTI Astatic MF-100MR Cartridge, Sept., July, 48. Kaufman, Dec., 72. 105. Sony HF, HF-S, UX, UX-S, UX-ES, UX-PRO, dbx Soundfield Ten Speaker System, Jan., and Metal-ES ("Mass Cassette Test"), Digital Sound & Equipment 84. Nov., 50. The Magnavox 16-Bit Series: Making Good Denon DX1, DX3, DX4, HD6 HD7, HD8, and Soundcraftsmen Pro-Power Four Amplifier, Players Better Walter G. Jung, June, 74. HD-M ("Mass Cassette Test"), Nov., 50. Sept., 78. AUDIO/DECEMBER 1987 175 Soundstream D200 ("8 Car Amps Tested"), Theory, Ingenuity, and Wizardry in Speaker Mobile Fidelity's Latest CDs, John Eargle, May, 42. Design, George L. Augspurger, April, 51. Nov., 148. Speiden SF-12 Stereo Microphone, March, Plane Facts About Flat Speakers, Kenneth 82. L. Kantor, Aug., 40. Obituaries Sumo Polaris Amplifier, Nov., 92. The LEDE Concept, Don Davis, Aug., 48. Richard C. Heyser, June, 6. Talisman Virtuoso B Cartridge and Eminent Designing a Home Listening Room, B. V. John Hammond, Oct., 4. Technology Tonearm 2, Feb., 80. Pisha and Charles Bilello, Sept., 56. Tandberg TCA 3018A Preamplifier and TPA The Case for Active Speaker Systems, Bob Psychoacoustics 3026A Amplifier, April, 66. Stuart, Sept., 64. Build a Live End/Dead End Listening Room, Tandberg 3015A Compact Disc Player Part II, William R. Hoffman. Jan., 55. ("Auricle"), Nov., 144. Music Performance & Recording Illusions for Stereo Headphones (Includes TDK AD-S, SA-XG, MA-X, and MA-XG Direct Metal Mastering—A New Art in LP Soundsheet), Dr. Diana Deutsch, March, ("Mass Cassette Test"), Nov., 50. Records B. V. Pisha and George Alexan- 36. Technics SV-D1000 ("Exclusive Test Re- drovich, April, 56. The LEDE Concept, Don Davis, Aug., 48. port: Four DAT Recorders"), July, 36. DMM for CDs Too!, Leonard Feldman, April, Designing a Home Listening Room. B. V Technics CQ-H7500 Car Stereo, July, 64. 60. Pisha and Charles Bilello, Sept., 56. Technics SL-P1200 Compact Disc Player, Compelling Reissues: MCA's Jazz Classics, Dec., 104. Hector G. La Torre, April, 96. Thorens TD 320 Turntable and TP 16 MK III The Audio Interview: George Martin, Susan Round-Up Reviews Tonearm, March, 76. Borey, June, 58. 8 Car Amps Tested, Leonard Feldman and Threshold SA/1 Mono Amplifier, Jan., 68. A Plethora of Planets (CD issues of Gustav Ivan Berger, May, 42. Triad F-X, EM-X, and MG-X ("Mass Cas- Hoist's "The Planets"), John Eargle, Oct., Exclusive Test Report: Four DAT Recorders, sette Test"), Nov., 50. 137. Leonard Feldman, July, 36. Velodyne ULD-15 Powered Subwoofer, Do CDs Sound Different?, John Eargle, Mass Cassette Test: We Review 35 New Nov., 78. Nov., 62. Tapes, Howard A. Roberson, Nov., 50. VPI HW 19-MKII Turntable ("Auricle"), Jan., 114. Yamaha DSP-1 Digital Sound Field Proces- sor, June, 82.

Forum Show Woes, Anthony H. Cordesman, April, 44. Unbalancing Act/Update (CBS Copy-code system), Leonard Feldman, Aug., 28.

History of Audio Theory, Ingenuity, and Wizardry in Speaker Design, George L. Augspurger, April, 51. Behind the Scenes (Anniversary remem- brance), Bert Whyte, May, 26. Thanks for the Memories: Audio Is 40, Leon- ard Feldman, May, 56. Audio ETC (Anniversary remembrance), Edward Tatnall Canby, June, 30. Spectrum (Anniversary remembrance), Ivan Berger, June, 34. Dept. of Amplification (Major Armstrong and FM development), John K. Mitchell, Oct., 121. A Life in Radio Broadcasting, Mortimer Goldberg, Dec., 62,

Interviews Richard L. Edwards (WINZ broadcast engi- neer), Lewis T. Fineman, Jan., 61. Chris Blackwell, Ted Fox, Part I, Feb., 50; Part II, March, 50. George Martin, Susan Borey, June, 58. Alfred Lion, Ted Fox, June, 62. Allen Toussaint, Ted Fox, Nov., 66.

Listening Rooms Build a Live End/Dead End Listening Room, Part II, William R. Hoffman, Jan., 55. The LEDE Concept, Don Davis, Aug., 48. Designing a Home Listening Room, B. V. Pisha and Charles Bilello, Sept., 56.

Loudspeakers Build a Live End/Dead End Listening Room. Part II, William R. Hoffman, Jan., 55. 176 AUDIO/DECEMBER 1987 Ariston Forte Turntable and Enigma Tone- arm, Dec., 140. Audiolab 8000A Integrated Amplifier, April, 70. Audio Research M-300 Amplifier ("Auri- cle"), Nov., 152. Blaupunkt Berlin TQR 07 Car Stereo, May, Build an Active Filter, Richard J. Kaufman, 64. July, 44. Clarion Audia 2000E Car Stereo, May, 76. Amplifiers Build a High-Blend Control, Richard J. Kauf- Creek 3140 FM Tuner, Jan., 124. Understanding Common-Mode Signals, man, July, 47. dbx TX1 Tuner, Nov., 101. R. N. Marsh, Feb., 58. Speakers By Design, Ken Kantor, Part I, Denon DN-950 CD Cart Player ("Spec- An Informal History of Car Amps, John R. Nov., 64; Part II, Dec., 72. trum"), Aug., 18. Bishop, May, 37. Dual CS 5000 Turntable and Ortofon X3-MC An Informal History of Solid-State Amps, Digital Sound & Equipment Cartridge, Nov., 114. Daniel Sweeney and Steve Mantz, June, Deciding on DAT: Witness of the Persecu- Eclipse EST-240 Car DAT Player Nov., 134. 46. tion, Barry Fox, March, 40. Ford Premium Car Stereo, May, 50. Forum: Philips' holly, Leonard Feldman, Harman/Kardon Citation Twenty-Three Tun- Book Reviews April, 16. er, Jan., 101. Introduction to Professional Recording Forum: "DATs de Breaks," Leonard Feld- Infinity 9 Kappa Loudspeaker ("Airicle"), Techniques by Bruce Bartiett, Sept., 36. man, May, 30. Jan., 132. Audio Production Techniques for Video by Forum: Pop Goes the Problems, Leonard KEF 107 Loudspeaker, Feb., 88. David Miles Huber, Sept., 36. Feldman, Aug., 24. Kenwood KX-660HX Cassette Deck, April, The Audio Dictionary by Glenn D. White, Crest Factors of CDs, Leonard Feldman, 78. Sept., 36. Dec., 96. Kenwood KDT-99R AM/FM-DAT Car Stereo, The Loudspeaker Design Cookbook. Third Sept., 86. Edition by Vance Dickason, Sept., 42. Directories Klyne SK-5A Preamplifier, Jan., 72. The Jazz Years: Earwitness to an Era by Car Stereo Directory, May. Mark Levinson No. 23 Dual Mono Amplifier Leonard Feather, Oct., 53. Introduction, 101; DAT Players, 101; ("Auricle"), April, 83. Benny Goodman: Listen to His Legacy by Amps/Equalizers, 102; Compact Disc Luxman R-117 Receiver, March, 56. D. Russell Connor, Oct., 53. Players, 110; Radios/Tape Players, 111; Marantz CD-94 Compact Disc Player and Remembering Buddy by John Goldrosen Speakers, 123; Company Addresses, CDA-94 D/A Converter, Aug., 70. and John Beecher, Oct., 54. 145. Marantz PM-94 Integrated Amplifier, Dec., A Life in Jazz by Danny Barker, Oct., 54. Annual Equipment Directory, Oct. 116. Grounding and Shielding Techniques in In- Introduction, 139; DAT Recorders, 142; MB Quart Electronics 280 Loudspeaker, strumentation, Third Edition by Ralph CD Players & D/A Converters, 146; Ampli- Dec., 102. Morrison, Dec., 57. fiers, 172; Preamplifiers, 206; Tuners, McIntosh C 31V Audio/Video Preamplifier, Noise Reduction Techniques in Electronic 222; Receivers, 228; Turntables, 242; Feb., 80. Systems, Second Edition by Henry Ott, Tonearms, 252; Phono Cartridges, 255; Meitner PA-6i Preamplifier, Nov., 140. Dec., 57. Cassette Decks, 268; Open-Reel Tape Mission Mat ("Mats & Clamps: By the Num- Total Harmonic Distortion by Charles Rodri- Decks, 276; Blank Tape, 276; Micro- bers"), April, 44. gues, Dec., 59. phones, 281; Headphones, 298; Equaliz- Mod Squad Prism Compact Disc Player ers, 304; Ambience & Surround Sound ("Auricle"), Aug., 104. Car Stereo Processors, 308; Signal Processors, 310; Monster Cable Planax Clamp ("Mats & An Informal History of Car Amps. John R. Crossovers, 316; Hi-Fi VCRs, 320; Loud- Clamps; By the Numbers"), April, 44. Bishop, May, 37. speakers, 324; Company Addresses, Nakamichi CR-4A Cassette Deck, Aug., 88. Power to the People: Build a Car Sub- 439. NEC AVD-700E Digital Surround Processor, woofer, Richard A. Frank, May, 44. March, 78. 14th Annual Car Stereo Directory, May, 101. Equipment Profiles/Auricles Ohm Walsh 5 Loudspeaker, June, 78. 4 x 4 By Two, Ivan Berger, Nov., 72. Akai AD-93 Digital Audio Tape Recorder, Onkyo T-9090II FM Tuner, July, 70. June, 68. Oracle Mat ("Mats & Clamps: By the Num- Construction Projects Akai AT-93 Tuner, Dec., 128. bers"), April, 44. Power to the People: Build a Car Sub- AR TSW 115P Powered Loudspeaker ("Au- Ortofon X3-MC Cartridge and Dual CS 5000 woofer, Richard A. Frank, May, 44. ricle"), Dec., 156. Turntable, Nov., 114; with Ariston Forte

AUDIO/DECEMBER 1988 199 Turntable and Enigma Tonearm, Dec., Tom Jung, David Lander, Aug., 50. (dmp) The Moscow Sessions: From Russia with 140. Leonard Feather, Ted Fox, Sept., 56. Love, Bert Whyte and Lisa Sonne, March, Parasound D/HX-600 Cassette Deck, Pick Rowe, Susan Elliott, Dec., 82. (Restora- 45. March, 68. tion of Hair) Inscriptions: Miles Davis on CD, John Sun- Philips CD960 Compact Disc Player, June, ier, April, 38 (Erratum, June, 6). 112. Loudspeakers Ella in Rome, Michael Aldred, Oct., 118. Philips DAC960 D/A Converter, June, 124. Power to the People: Build a Car Sub- Irving Berlin: The Memories Linger On, Don- Pioneer Elite F-91 Tuner, Aug., 58. woofer, Richard A. Frank, May, 44. ald Spoto, Oct., 124. Platter Matter Mat ("Mats & Clamps: By the Build an Active Filter, Richard J. Kaufman, Reprise: The Commodore and Keynote Col- Numbers"), April, 44. July, 44. lections, Frank Driggs, Dec., 78. PS Audio 4.6 Preamplifier ("Auricle"), Sept., Speakers By Design, Ken Kantor, Part I, 116. Nov., 64; Part II, Dec., 72. Obituary Revox B260 FM Tuner, Sept., 70. John Bowers, April, 2. Sansui CD-X901 Compact Disc Player, Measurement Techniques Jan., 108. Understanding Common-Mode Signals, Tape & Tape Recorders Scotch Dustguard Mat ("Mats & Clamps: By R. N. Marsh, Feb., 58. The Effectiveness of Bulk Erasing, Howard, the Numbers"), April, 44. Mats & Clamps: By the Numbers, Edward A. Roberson, Jan., 64. Sennheiser MKH 40 Microphone, Jan., 114. M. Long, April, 44. EQ and NR: Striking a Balance, Howard A. Sony CDP-707ESD Compact Disc Player, Forum: Pop Goes the Problems, Leonard Roberson, Aug., 46. April, 56. Feldman, Aug., 24. Hi-Fi Sound on Hi-Fi VCRs, Joseph Giovan- SOTA Mat and Supermat ("Mats & Clamps: Crest Factors of CDs, Leonard Feldman, elli, Sept., 52. By the Numbers"), April, 44. Dec., 96. Oberlin Smith: Centenary of Magnetic Re- Soundcraftsmen Pro-Control Four Preampli- cording, Jon R. Sank, Dec., 90. fier, Feb., 104. Music Performance & Recording Sumo Delilah Crossover, Aug., 98. Grateful Tapers: An Informal History of Re- Turntables Tandberg 3001 A FM Tuner, March, 48. cording "The Dead," Michael Nash, Jan., Mats & Clamps: By the Numbers, Edward Turomat ("Mats & Clamps: By the Num- 54. M. Long, April, 44. bers"), April, 44. van den Hul MC-One Cartridge and Weil Tempered Tonearm, July, 49. Well Tempered Turntable, July, 48. Well Tempered Tonearm and van den Hul MC-One Cartridge, July, 49. Wheaton Tri-Planar II Tonearm, June, 100. Yamaha CDX-5000 Compact Disc Player, Jan., 88. Yamaha CDX-1110U Compact Disc Player, Sept., 102. Yamaha DSP-3000 Digital Sound Field Pro- cessor, Nov., 82.

Forum Philips' Folly, Leonard Feldman, April, 16. "DATs de Breaks," Leonard Feldman, May, 30. Pop Goes the Problems, Leonard Feldman, Aug., 24.

History of Audio An Informal History of Car Amps, John R. Bishop, May, 37. An Informal History of Solid-State Amps, Daniel Sweeney and Steve Mantz, June, 46. Oberlin Smith: Centenary of Magnetic Re- cording, Jon R. Sank, Dec., 90.

Interviews Milt Gabier, Ted Fox, Feb., 66. (Commodore Music) Dave Grusin and Larry Rosen, David Land- er, March, 34. (GRP Records) Chris Strachwitz, Ted Fox, June, 56. (Arhoo- lie Records/Down Home Music) E. Alan Silver, David Lander, July, 38. (Con- noisseur Society/In Sync Laboratories) 200 AUDIO/DECEMBER 1988 Annual Equipment Directory, Oct. Special Section Tabs, 179; CD Players & D/A Converters, 182; DAT Recorders, 204; Amplifiers, 206; Preamplifiers, 236; Tuners, 258; Receivers, 264; Turntables, 273; Tonearms, 278; Phono Cartridges, 280; Open-Reel Tape Decks, 294; Cas- sette Decks, 296; Blank Tape, 302; Micro- Broadcasting phones, 305; Headphones, 322; Equaliz- Spectrum: FMX Haze, Leonard Feldman, ers, 332; Ambience & Surround Sound May, 32. Processors, 337; Signal Processors, 342; Crossovers, 344; Hi-Fi VCRs, 350; Loud- Car Stereo speakers, 353; Company Addresses, Amplifiers Road War: 5 Car Amps Tested (a/d/s/ 483. Cables and the Amp/Speaker Interface, PH15, Altec Lansing ALA-435, Blaupunkt R. A. Greiner, Aug., 46 (Addendum, Nov., PSA 168, Canton M50 Amp Module and Equipment Profiles/Auricles 4). MF5 Mainframe, and Linear Power 4302), Accuphase G-18 Third-Octave Equalizer, THX Sound System: Certified Hi-Fi for the Leonard Feldman and Ivan Berger, May, April, 80. Movies, Tomlinson Holman, Sept., 62. 38. a/d/s/ CC4 Tuner/Preamplifier, March, 72. Forum: Burst of Creativity (Amp Test Stan- Quick-Build Car Project: Op-Amp Power a/d/s/ PA4 Power Amplifier, March, 73. dards), Edward J. Foster, Nov., 60. Supply, Richard J. Kaufman, May, 51 a/d/s/ PH15 Car Amplifier ("Road War: 5 (Addendum, July, 6). Car Amps Tested"), May, 38. Quick-Build Car Project: Subwoofer Cross- Altec Lansing ALA-435 Car Amplifier Binaural Sound over, Richard J. Kaufman, May, 53. ("Road War: 5 Car Amps Tested"), May, The Blue Max Affair, Robin Lanier, Nov., 68. 15th Annual Car Stereo Directory, May, 115. 38. Binaural Overview: Ears Where the Mikes Anechoic Orchestral Music Recording Test Are, John Sunier, Part I, Nov., 74; Part II, CD ("Auricle"), July, 98. Available from Construction Projects Dec., 48. Denon. Quick-Build Car Project: Op-Amp Power The Aachen Head System: Binaural Re- Apogee Duetta Signature Loudspeaker, cording for Headphones and Speakers, Supply, Richard J. Kaufman, May, 51 Dec., 70. (Addendum, July, 6). Dr.-lng. Klaus Genuit and Wade R. Bray, Audio Control Ten Plus Equalizer, Jan., 99. Quick-Build Car Project: Subwoofer Cross- Dec., 58. Audio Dynamics T-2000E Tuner, Feb., 108. over, Richard J. Kaufman, May, 53. AudioPrism 7500 indoor FM Antenna ("Auri- Build an Indoor FM Antenna, Richard J. cle"), Dec., 130. Kaufman, July, 52. Book Reviews Auditory Demonstrations Test CD ("Auri- Frequency Analysis by R. B. Randall, cle"), July, 98. Available from the Acousti- March, 26. Digital Sound & Equipment cal Society of America. Celebrating Bird: The Triumph of Charlie DATs the Way It Is, Christopher Greenleaf, Blaupunkt PSA 168 Car Amplifier ("Road Parker by Gary Giddins, March, 36. Jan., 70. War: 5 Car Amps Tested"), May, 38. Perception of Reproduced Sound edited by How's DAT Doing Here?, Ivan Berger, Jan., Cambridge SoundWorks Ensemble Loud- Soren Bech and O. Juhl Pedersen, April, 72. speaker, Sept., 106. 22. Putting the Byte on Noise: NoNoise from Canton M50 Car Amplifier Module and MF5 Buck Clayton's Jazz World by Buck Clay- Sonic Solutions, Michael Wright, March, Mainframe ("Road War: 5 Car Amps Test- ton, assisted by Nancy Miller Elliott, June, 54. ed"), May, 38. 22. How Hot Are CDs?, Howard A. Roberson, Classic Audio CA260 Dual Mono Amplifier, Dick Todd: King of the Juke Box by Sheldon July, 42. Nov., 130. O'Connell, June, 22. Whither the Stereo LP?, John Eargle, Aug., Denon DCD-3520 Compact Disc Player, The New Penguin Guide to Compact Discs 54. June, 82. and Cassettes by Edward Greenfield, In Conference: Bit by Bit (AES International Eminent Technology LFT-III Loudspeaker Robert Layton, and Ivan March, July, 16. Conference, "Audio in Digital Times"), ("Auricle"), Feb., 114. The New Grove Dictionary of Jazz, Vols. I R. A. Greiner, Sept., 42. Fosgate DSM-3610 Pro-Plus Surround Pro- and II edited by Barry Kernfeld, July, 18. Forum: DAT Deal's Done, Leonard Feld- cessor, March, 88. The Wood Effect by R. C. Johnsen, Aug., man, Oct., 118. Fuselier 3.8D Loudspeaker, June, 110. 14. Goldmund Mimesis 7 Preamplifier and Mi- Loudspeaker and Headphone Handbook Directories mesis 6 Amplifier, Dec., 82. edited by John Berwick, Aug., 16. Car Stereo Directory, May. Hafler XL600 Power Amplifier, Feb., 86. The Compact Disc: A Handbook of Theory Introduction, 115; DAT Players, 115; Harman Kardon HD800 Compact Disc Play- and Use by Ken C. Pohlmann, Oct., 44. Amps/Equalizers, 116; CD Players, 129; er, Jan., 116. Audio Electronics Reference Book edited Radios/Tape Players, 131; Speakers, Harman Kardon Citation Twenty-Five Pre- by Ian R. Sinclair, Oct., 46. 142; Company Addresses, 171. amplifier, March, 98.

178 AUDIO/DECEMBER 1989 Harman Kardon CR151 Car Stereo, May, Yamaha CDX-2020 Compact Disc Player, Songs, and Stars), Donald Spoto, Aug., 54. Dec., 102. 60. Harris XD-001UH Digital Audio Tape Re- YBA Dual Mono Amplifier, Jan., 108. Centennial Celebration: Heinrich R. Hertz, corder, June, 98. Almon H. Clegg, Oct., 68. JVC XP-A1010 Digital Acoustics Processor, FM Reception The Blue Max Affair, Robin Lanier, Nov., 68. Sept., 118. Spectrum: FMX Haze, Leonard Feldman, The Aachen Head System: Binaural Re- Mark Levinson No. 26 Dual Mono Preampli- May, 32. cording for Headphones and Speakers, fier ("Auricle"), Aug., 106. Build an Indoor FM Antenna, Richard J. Dr.-lng. Klaus Genuit and Wade R. Bray, Lexicon CP-1 Digital Audio Environment Kaufman, July, 52. Dec., 58. Processor, Nov., 104. Linear Power 4302 Car Amplifier ("Road Forum International Audio Whither the Stereo LP?, John Eargle, Aug., DATs the Way It Is, Christopher Greenleaf, War: 5 Car Amps Tested"), May, 38. Jan., 70. Linn LK1 Preamplifier, April, 88. 54. Design Digest: The Quad Manchester Com- Linn LK280 Power Amplifier, April, 89. DAT Deal's Done, Leonard Feldman, Oct., petitions, David Lander, April, 64. Mitsubishi DT-10 Car Digital Audio Tape 118. Burst of Creativity (Amp Test Standards), Audio in China: Hi-Fi Takes a Great Leap Player, May, 70. Edward J. Foster, Nov., 60. Modulation Sciences ModMinder ("Spec- Forward, Robert Angus, April, 70. trum"), Oct., 57. Interviews Motif MC8 Preamplifier and MS100 Amplifi- Headphones The Blue Max Affair, Robin Lanier, Nov., 68. Raymond Kurzweil, David Lander, Jan., 62. er, July, 56. Binaural Overview: Ears Where the Mikes Bruce Lundvall, Ted Fox, June, 68. NAD 7400 Receiver, Aug., 62. Are, John Sunier, Part I, Nov., 74; Part II, Emory Cook, David Lander, Sept., 50. Nakamichi 1000 DAT Recording System, Nov., 90. Dec., 48. Loudspeakers Onkyo DX-G10 Compact Disc Player, The Aachen Head System: Binaural Re- Measuring Acoustic Phase, Don Davis, March, 62. cording for Headphones and Speakers, Feb., 60 (Dept. of Amplification, Dec., Paradigm 7se Loudspeaker, Sept., 74. Dr.-lng. Klaus Genuit and Wade R. Bray, 14). Phantom Acoustics Shadow Active L.F. Dec., 58. Electrostatic Speakers: Theory and Prac- Acoustic Controller ("Auricle"), June, tice, Ronald Wagner, Part I, March, 46; 126. Hearing Part II, April, 56. Philips CD880 Compact Disc Player, Jan., Earning a Deaf Ear: Loud Music and Hear- Design Digest: The Quad Manchester Com- 84. ing Loss, Leigh Silverman, Jan., 76. petitions, David Lander, April, 64. Revolver Turntable, Standard Arm, and Bul- Book Review: The Wood Effect by R. C. Cables and the Amp/Speaker Interface, let Cartridge, April, 106. Johnsen, Aug., 14. R. A. Greiner, Aug., 46 (Addendum, Nov., Shure Home Theater Sound HTS 5300 Sur- Book Review: Loudspeaker and Head- 4). round Decoder, July, 84. phone Handbook edited by John Ber- THX Sound System: Certified Hi-Fi for the Sony PCM-2500 Digital Audio Tape Record- wick, Aug., 16. Movies, Tomlinson Holman, Sept., 62. er, Feb., 92. The Blue Max Affair, Robin Lanier, Nov., 68. Testing at Canada's National Research Sony SDP-777ES Digital Surround Proces- Binaural Overview: Ears Where the Mikes Council, D. B. Keele, Jr., Sept., 75. sor, Aug., 80. Are, John Sunier, Part I, Nov., 74; Part II, The Oil-Can Effect, D. B. Keele, Jr., Sept., Sony CDP-X7ESD Compact Disc Player, Dec., 48. 90. Nov., 120. The Aachen Head System: Binaural Re- The Aachen Head System: Binaural Re- Soundcraftsmen Pro-Power Ten Amplifier, cording for Headphones and Speakers, cording for Headphones and Speakers, Sept., 100. Dr.-lng. Klaus Genuit and Wade R. Bray, Dr.-lng. Klaus Genuit and Wade R. Bray, Sumo Athena Preamplifier, Aug., 94. Dec., 58. Dec., 58. Superphon C.D. Maxx Preamplifier, Dec., 116. History of Audio Measurement Techniques Tandberg 3080A FM Receiver, July, 74. Enduring Instruments: Treasures from the Measuring Acoustic Phase, Don Davis, TEAC V-970X Cassette Deck, Jan., 126. Yale Collection, David Lander, Feb., 52. Feb., 60 (Dept. of Amplification, Dec., Terk 9600 Pi FM Antenna, Feb., 106. Electrostatic Speakers: Theory and Prac- 14). Test CDs: Auditory Demonstrations, from tice, Ronald Wagner, Part I, March, 46; How Hot Are CDs?, Howard A. Roberson, the Acoustical Society of America, and Part II, April, 56. July, 42. Anechoic Orchestral Music Recording, Audio in China: Hi-Fi Takes a Great Leap Distortion Tests & Analog Recording, How- from Denon ("Auricle"), July, 98. Forward, Robert Angus, April, 70. ard A. Roberson, July, 47. Theta DS Pre Preamplifier ("Auricle"), Sept., Dept. of Amplification: Engineering Report Cables and the Amp/Speaker Interface, 132. (Chicago Symphony/Fritz Reiner Record- R. A. Greiner, Aug., 46 (Addendum, Nov., VMPS Super Tower/R and Tower II Loud- ings), Willis Connor, Aug., 38. 4). speakers ("Auricle"), June, 118. Whither the Stereo LP?, John Eargle, Aug., Dolby Spectral Recording, John Eargle, VPI TNT Turntable ("Auricle"), Dec., 124. 54. Aug., 57. Yamaha CX-10000 Preamplifier ("Auricle"), Nights the Stars Came Out (Smithsonian Testing at Canada's National Research Jan., 138. Collection of American Theater: Shows, Council, D. B. Keele, Jr., Sept., 75.

AUDIO/DECEMBER 1989 179 The Oil-Can Effect, D. B. Keele, Jr., Sept., Putting the Byte on Noise: NoNoise from Forum: DAT Deal's Done, Leonard Feld- 90. Sonic Solutions, Michael Wright, March, man, Oct., 118. Forum: Burst of Creativity (Amp Test Stan- 54. Restoring Old Masters, Daniel Sweeney, dards), Edward J. Foster, Nov., 60. Too Many Signal Sources (Using a Tape Oct., 148. Switchbox), Herman Burstein, June, 62. The Blue Max Affair, Robin Lanier, Nov., 68. Distortion Tests & Analog Recording, How- Binaural Overview: Ears Where the Mikes Microphones ard A. Roberson, July, 47. Are, John Sunier, Part I, Nov., 74; Part II, The Blue Max Affair, Robin Lanier, Nov., 68. Dept. of Amplification: Engineering Report Dec., 48. Binaural Overview: Ears Where the Mikes (Chicago Symphony/Fritz Reiner Record- The Aachen Head System: Binaural Re- Are, John Sunier, Part I, Nov., 74; Part II, ings), Willis Connor, Aug., 38. cording for Headphones and Speakers, Dec., 48. Dolby Spectral Recording, John Eargle, Dr.-lng. Klaus Genuit and Wade R. Bray, The Aachen Head System: Binaural Re- Aug., 57. Dec., 58. cording for Headphones and Speakers, Dr.-lng. Klaus Genuit and Wade R. Bray, Dec., 58.

Noise Reduction Putting the Byte on Noise: NoNoise from Sonic Solutions, Michael Wright, March, 54. Dolby Spectral Recording, John Eargle, Aug., 57. THX Sound System: Certified Hi-Fi for the Movies, Tomlinson Holman, Sept., 62. Restoring Old Masters, Daniel Sweeney, Oct., 148.

Obituaries Roy Orbison, Feb., 122. Irv Demsky, May, 6. Gordon J. Gow, Oct., 39.

Psychoacoustics Earning a Deaf Ear: Loud Music and Hear- ing Loss, Leigh Silverman, Jan., 76. Cables and the Amp/Speaker Interface, R. A. Greiner, Aug., 46 (Addendum, Nov., 4). The Blue Max Affair, Robin Lanier, Nov., 68. Binaural Overview: Ears Where the Mikes Are, John Sunier, Part I, Nov., 74; Part II, Dec., 48. The Aachen Head System: Binaural Re- cording for Headphones and Speakers, Dr.-lng. Klaus Genuit and Wade R. Bray, Dec., 58.

Reissues of Classic Recordings Nights the Stars Came Out (Smithsonian Collection of American Theater: Shows, Songs, and Stars), Donald Spoto, Aug., 60. Thelonious Monk: Sphere of Influence, John Sunier, Oct., 152. Bird in Full Flight: A Charlie Parker Compila- tion, Jon W. Poses, Nov., 86.

Surround Sound THX Sound System; Certified Hi-Fi for the Movies, Tomlinson Holman, Sept., 62.

Tape & Tape Recording DATs the Way It Is, Christopher Greenleaf, Jan., 70. How's DAT Doing Here?, Ivan Berger, Jan., 72.

180 AUDIO/DECEMBER 1989 Digital Sound & Equipment Sound from Space: Digital Broadcasts, Dig- ital Components, Robert Angus, Feb., 51. Exclusive U.S. Test: Thomson CD Recorder, Leonard Feldman, March, 38. Recordable CDs—Write Now, Robert An- gus, July, 32. QED: DSP ("Roadsigns"), Ivan Berger, Aug., 24. Digital Signal Processing for the Hearing Impaired: Parallel Universes. Dan Sween- ey, Sept., 38.

Audio Engineering Handbook edited by K. Directories Blair Benson, Nov., 20. Car Stereo Directory, May. Sound Recording Handbook by John M. Introduction, 89; DAT Players, 89; Amps/ Addenda Woram, Dec., 20. Equalizers, 90; CD Players, 106; Radio/ THX Sound System: Certified Hi-Fi for the Tape Players, 110; Speakers, 126; Com- Movies (Sept. 1989, 62), Tomlinson Hol- Car Stereo pany Addresses, 164. man, July, 4. Cool Cars, Hot Sound. Ivan Berger, May, Annual Equipment Directory, Oct. Statistics in A/B Testing: By the Numbers 36. Special Section Tabs, 149, CD Players & (Feb. 1990, 42), Herman Burstein, Sept., 16th Annual Car Stereo Directory, May, 89. D/A Converters, 154; DAT Recorders, 4. QED: DSP ("Roadsigns"), Ivan Berger. 170; Amplifiers, 175; Preamplifiers, 205; Aug., 24. Tuners, 223; Receivers, 229; Turntables, Book Reviews 239; Tonearms, 244; Phono Cartridges, The Art of Digital Audio by John Watkinson, Construction Projects 246, Open-Reel Tape Decks, 253; Cas- Jan., 24. Certified Bass lor the Certifiable, James S. sette Decks, 256; Blank Tape, 264; Micro- The New Trouser Press Record Guide, Re- Sherwin, Jan., 62. phones, 268; Headphones, 289; Equaliz- vised Edition edited by Ira A. Robbins, Build the Bassis: A Circuit To Correct and ers, 297; Ambience & Surround Sound Jan., 28. Extend Loudspeaker Bass Response, Processors, 300; Signal Processors, 305; Tonmeister Technology: Recording Environ- Ralph E. Gonzalez, April, 36. Crossovers, 306; Hi-Fi VCRs, 312; Loud- ments, Sound Sources and Microphone Build an Auxiliary Switchbox, Richard J. speakers, 317; Company Addresses, Techniques by Michael Dickreiter (trans- Kaufman, Aug., 34. 440. lated by Stephen Temmer), June, 14. Good Walls Make Good Neighbors, Peter The Encyclopedia of Pop, Rock and Soul Jurew, Dec., 72. Environmental Sound (Revised Edition) by Irwin Stambler, June, Muffling the Neighbors: Ten Tips To Reduce 17. Digital Broadcasting Noise, F. Alton Everest, Nov., 68. Handbook for Sound Engineers edited by Sound from Space: Digital Broadcasts, Dig- Good Walls Make Good Neighbors. Peter Glen Ballou, Nov., 20. ital Components, Robert Angus, Feb., 51. Jurew, Dec., 72.

AUDIO/DECEMBER 1990 169 SME 309 Tonearm and Signet OC9 Car- tridge (with SOTA Cosmos Turntable), Sept., 59. Sony HF, HF-S, UX, UX-S, UX-ES, UX-Pro, Metal-SR, Metal-ES, and Metal Master Cassettes, March, 44. Sony CDP-X77ES Compact Disc Player, June, 70. Sony DTC-75ES Digital Audio Tape Record- er, Nov., 84. SOTA Cosmos Turntable (with SME 309 Tonearm and Signet OC9 Cartridge), Sept., 58. TDK D, AD, AR, AR-X, SD, SA, SA-X, MA, Lirpa Labs VCDRS Compact Disc Player, MA-X, and MA-XG Cassettes, March, 44. ("Auricle"), April, 96. Terk Technologies Pi2 FM Antenna ("Auri- Equipment Profiles/Auricles Marantz CD3577 Compact Disc Player, cle"), Nov., 126. Adcom GFP-565 Preamplifier ("Auricle"), Dec., 108. That's CD, CD-II, CD-MH, and CD-IV Cas- Oct., 138. Maxell Frill, UR-F, UDI, XLI-S, Capsule II, settes, March, 44. Adcom GFA-565 Mono Amplifier ("Auri- UDX-II, UDII, XLII, XLII-S, and MX Cas- Thomson DR 1000 CD Recorder, March, cle"), Oct., 139. settes, March, 44. 38. BASF Ferro Extra I, Ferro Super I, Ferro McIntosh MC 7200 Power Amplifier. Jan., Tree Dimensions CD550 CD Cabinet ("Auri- Maxima I, Chrome Extra II, Chrome Maxi- 72. cle"), Oct., 132. ma II, and Metal Maxima IV Cassettes, Memorex dBS, MRX I, HBS II, and CDX II Vector Research VRX-5200R Receiver, March, 44. Cassettes, March, 44. Jan., 104. BBE Sound 1002 Sonic Maximizer ("Auri- Memorex Compact Disc Repair and Mainte- Vendetta Research SCP-2B Pre-Preamplifi- cle"), Feb., 90. nance Kit ("Auricle"), Nov., 130. er, Dec., 116. Boulder 500AE Amplifier and Ultimate Pre- Mitsubishi M-AV1 Audio/Video Receiver, Visa High Performance I, Superferro UFX I, amplifier, Feb., 54. Feb., 72. Chromdioxid CX II, and Superchrom UCX Bruel & Kjaer 4011 Studio Microphone, Nakamichi EXII, SX, SXII, and ZX Cassettes, II-S Cassettes (from Interworld Electron- Jan., 114. March, 44. ics), March, 44. B & W 801 Matrix Series 2 Loudspeaker, Nakamichi Car Components: TD-560 Tuner/ VTL Compact 100 Mono Amplifier and De- Nov., 92. Cassette Player, CDC-101 CD Changer, luxe Preamplifier, Aug., 74. Carver CT-17 Tuner/Preamplifier, Dec., 78. DAC-101 D/A Converter, and CA-101 Certron HD and UX Cassettes, March, 44. Control Amplifier, May, 42. Forum Chrome Master LX-II Cassette (from Master NHT Model II Loudspeaker, July, 60. The Lowdown on HDTV, James C. Davies, Hi-Tech Video), March, 44. Onkyo Integra T-4700 Tuner, June, 104. March, 30. Classe Audio DR-5 Preamplifier ("Auricle"), Philips LHH1000 Compact Disc Player, Value-Added Ownership, Mel Lambert, Jan., 126. Jan., 94. July, 22. Counterpoint SA-220 Power Amplifier, July, Pioneer TZ-9 Loudspeaker, June, 90. An Open Letter to Analog Cassette Hard- 48. Precise Monitor 10 Loudspeaker, Sept., 98. ware Manufacturers, Edwin Outwater; Re- Dahlquist M907i Loudspeaker, Aug., 88. Proton CR-560 Car Stereo, April, 84. sponse to "An Open Letter...," Marty DAK MLX and MLX2 Cassettes, March, 44. Realistic Supertape LN, Supertape XR, Zanfino; Nov., 54. Denon DX1, DX4, HD6, HD7, HD8, and HD- Supertape HD, Supertape MII, and M Cassettes, March, 44. Supertape MIV Cassettes (from Radio Hearing Denon DCC-8970 Car Tuner and CD Player, Shack), March, 44. Digital Signal Processing for the Hearing Nov., 114. Reference Recordings Test Videodisc: A Impaired: Parallel Universes, Dan Sween- Dolan PM1 Preamplifier, Jan., 82. Video Standard ("Auricle"), March, 88. ey, Sept., 38. Dynaudio Special One Loudspeaker, Dec., Revox B226-S Compact Disc Player, 90. March, 66. Fisher RS-Z1 Receiver, Aug., 60. Rockford Fosgate RF200 Preamplifier, History Fuji DR-I, DR-II, FR-llx, FR-llx PRO, and FR June, 78. The Audio Interview: Laurie Fincham, David Metal Cassettes, March, 44. Rockford Fosgate RF2000 Power Amplifier, Lander, Jan., 54. Goldmund ST4 Turntable and Gold Car- June, 79. The Audio Interview: Doc Pomus, Danny tridge, Aug., 40. Jeff Rowland Design Group Coherence McCue, Feb., 36. Goldstar HP, HR, CRX, and MT Cassettes, One Series II Preamplifier and Model 7 The Audio Interview: Moses Asch, Gary March, 44. Mono Amplifier, April, 48. Kenton, July, 38. Greencorp XDS, Music+, and CR Cas- Sansui AU-X911DG Digital/Analog Amplifi- Engineering the Boston Symphony Orches- settes, March, 44. er, April, 76. tra, John Alvin Pierce, Aug., 36. Hafler Iris FM Tuner, Feb., 84. Shure SM89 Shotgun Condenser Micro- Digital Signal Processing for the Hearing Heath AJ-2520 Tuner, March, 76. phone, Dec., 124. Impaired: Parallel Universes, Dan JVC GI, AFII, and AFIV Cassettes, March, Signet OC9 Cartridge and SME 309 Tone- Sweeney, Sept., 38. 44. arm (with SOTA Cosmos Turntable), The Audio Interview: Avery Fisher, David Laser XL Plus Cassette (from Swire Magnet- Sept., 59. Lander. Sept., 48. ics), March, 44. SKC GX, AX, QX, CD, and ZX Cassettes, The Audio Interview: Orrin Keepnews, Jon Lazarus H-1A Amplifier. Sept., 88. March, 44. W. Poses, Dec., 60.

170 AUDIO/DECEMBER 1990 Historical Notes on Shotgun Mikes, Jon R. Herman Burstein. Feb., 42 (Addendum. Introducing Dolby S-Type Noise Reduction, Sank, Dec., 130. Sept., 4). Kenneth Gundry and Joseph Hull, June, 50. Interviews Reissued Recordings A First Test: Dolby S-Type, Howard A. Ro- Laurie Fincham, David Lander, Jan., 54 Reclimbing Everest (Philips CDs of Everest berson, June, 58. (KEF Electronics). recordings), John Eargle, Jan., 132. Forum: Value-Added Ownership, Mel Lam- Doc Pomus. Danny McCue, Feb., 36. Haute Cuisine: Belshazzaar's Feast, John bert, July, 22. Tom Kraus and Larry Schnapf. Susan Elliott. Eargle, Aug., 26. Forum: An Open Letter to Analog Cassette April, 30 (BMG Studios). The Mosaic Reissues: Standards of Excel- Hardware Manufacturers, Edwin Out- Steven Epstein. Susan Elliott, June, 60. lence, Frank Driggs. Nov., 80. water; Response to "An Open Letter...," Moses Asch, Gary Kenton, July, 38 (Folk- Marty Zanfino; Nov., 54. ways Records). Tape & Tape Recording Archival Revival: Problems and Solutions in Avery Fisher, David Lander, Sept., 48. Greatest Cassette Test Ever: 88 Tapes Test- Long-Term Tape Performance, Michael Orrin Keepnews, Jon W. Poses, Dec., 60. ed, Howard A. Roberson, March, 44. N. Stosich, Nov., 60.

Juilliard School of Music Audio Magazine-Juilliard Scholarship Award, Susan Elliott, Jan., 33.

Loudspeakers The Audio Interview: Laurie Fincham (of KEF), David Lander, Jan., 54. Certified Bass for the Certifiable, James S. Sherwin, Jan., 62. Build the Bassis: A Circuit To Correct and Extend Loudspeaker Bass Response, Ralph E. Gonzalez, April, 36.

Measurement Techniques Statistics in A/B Testing: By the Numbers, Herman Burstein, Feb., 42 (Addendum, Sept., 4). Greatest Cassette Test Ever: 88 Tapes Test- ed, Howard A. Roberson, March, 44.

Microphones Historical Notes on Shotgun Mikes, Jon R. Sank, Dec., 130.

Noise Reduction Introducing Dolby S-Type Noise Reduction. Kenneth Gundry and Joseph Hull, June, 50. A First Test: Dolby S-Type, Howard A. Ro- berson. June, 58.

Obituary Deane E. Jensen, Feb., 25. Professional Recording The Audio Interview: Doc Pomus, Danny McCue, Feb., 36. Fast Forward at BMG. Susan Elliott, April, 30. The Audio Interview: Steven Epstein, Susan Elliott, June, 60. Forum: Value-Added Ownership, Mel Lam- bert, July, 22. The Audio Interview: Moses Asch. Gary Kenton, July, 38. Engineering the Boston Symphony Orches- tra, John Alvin Pierce, Aug., 36. The Audio Interview: Orrin Keepnews. Jon W. Poses, Dec., 60.

Psychoacoustics Statistics in A/B Testing: By the Numbers,

AUDIO/DECEMBER 1990 171 Music of the Bitstream, Prasanna Shah, Jan., 56 (Addendum, July, 4). Digital Duel: Three Portable CD Players Tested (Denon DCP-100, NEC HES-CDR- 01 TurboGrafx, and Sony D-555 Disc- man), Leonard Feldman, Feb., 32. Playing CD Games (NEC TurboGrafx-16 system), Leonard Feldman, Feb., 36. New Life in Cassettes: Digital Duplications, John Eargle, July, 38. Mighty Mini (Sony Mini Disc; "Spectrum"), Leonard Feldman, Aug., 26. The Motown Album, history by Ben Fong- A Levy Is a Toll Is a Tax (royalty on digital Torres, essay by Elvis Mitchell, and dis- audio recorders and media; "Spectrum"), cography by Dave Marsh, Jan., 22. Eugene Pitts, Sept., 4. Music, Sound, & Technology by John M. Have DAT . . . Will Travel: To the Islands of Eargle, April, 12. Japan, Christopher Greenleaf, Sept., 26. Hit Men by Fredric Dannen, April, 16. Have DAT . . . Will Travel: To the Galapagos Grateful Dead Family Album by Jerilyn Lee Islands, John M. Woram, Sept., 27. Brandelius (edited by Alan Trist), April, Noteworthy: Philips' Digital Compact Cas- 16. sette and PASC Data Compression, Da- I Am the Blues: The Willie Dixon Story by vid Ranada, Sept., 32. Willie Dixon with Don Snowden, April, 21.

Cables Directories Impedance, Cables & Treble Loss, Herman Car Stereo Directory, May. Burstein, Nov., 42. Introduction, 49; DAT Players, 49; Amps/ Equalizers, 50; In-Dash CD Players, 78; Car Stereo CD Changers, 84; Radios/Tape Players, Land of Thump and Glory (IASCA Finals 86; Speakers, 96; Company Addresses, and Expo; "Roadsigns"), Ivan Berger, 135. Feb., 18. Annual Equipment Directory, October. Addenda Competition Grows in Tents (IASCA Finals Introduction, 115; DAT Recorders, 118; Digital Signal Processing for the Hearing and Expo; "Roadsigns"), Ivan Berger, CD Players & D/A Converters, 120; Ampli- Impaired: Parallel Universes (Sept. 1990, March, 31. fiers, 138; Preamplifiers, 165; Tuners, 38), Dan Sweeney, March, 4 and May, 8. From Here to Infiniti (Infiniti/Bose system; 179; Receivers, 185; Turntables, 192; Music of the Bitstream (Jan. 1991, 56), Pra- "Roadsigns"), Ivan Berger, April, 38. Tonearms, 195; Phono Cartridges, 199; sanna Shah, July, 4. Rolls-Royce: Sound in a Silver Cloud, Ivan Cassette Decks, 209; Open-Reel Tape Berger, May, 10. Decks, 216; Blank Tape, 216; Head- Airborne Audio 17th Annual Car Stereo Directory, May, 49. phones, 223; Equalizers, 231; Ambience Airborne Audio: Hi-Fi in the Sky, Rich War- Auto Inquiries (AES conference; "Road- & Surround Sound Processors, 235; Sig- ren, Aug., 42. signs"), David Clark, June, 28. nal Processors, 239; Crossovers, 241; Loudspeakers, 244; Company Address- Book Reviews Construction Projects es, 370. The Master Handbook of Acoustics, Sec- Build a Simple Surround Decoder, Richard ond Edition by F. Alton Everest, Jan., 20. J. Kaufman, June, 48. Environmental Sound Electrostatic Loudspeaker Design and Con- Forum: Constructive Commentary (re- struction by Ronald Wagner, Jan., 20. Digital Sound & Equipment sponse to two 1990 Audio articles on DCC Currents ("Spectrum"), Ivan Berger, controlling indoor noise), Jon R. Sank, Jan., 26. Dec., 16.

168 AUDIO/DECEMBER 1991 Equipment Profiles NEC HES-CDR-01 TurboGrafx Portable CD History Air Tight ATM-1 Power Amplifier, June, 98. Player, Feb., 32. The Audio Interview: Bill Levenson, Danny Alpine 7909 Car Tuner/CD Player, Jan., 98. Pioneer Premier KEX-M900 Car Stereo with McCue, Jan., 50. Altec Lansing 511 Loudspeaker, April, 82. DSP, Dec., 98. The Audio Interview: Robert Parker, John AudioSource SS Three Surround Processor, Proceed PCD Compact Disc Player and Sunier, Feb., 24. Dec., 114. PDP D/A Converter ("Auricle"), April, 102. The Phonograph's Forgotten Heroes, John David Berning EA-2101 Amplifier and TF-12 Proton SD-1000 Surround Decoder, April, Alvin Pierce, March, 42. Preamplifier, Dec., 56. 70. The Audio Interview: Tom Frost, Susan El- Blaupunkt New York Car Tuner/CD Player, PSB Stratus Gold Loudspeaker, Nov., 46. liott, April, 42. July, 56. Recoton FM200 Indoor FM Antenna ("Auri- Carnegie Hall Centennial, Susan Elliott, Boston Acoustics T1030 Loudspeaker, cle"), Dec., 128. May, 16. Jan., 78. Sony TCD-D3 DAT Walkman Recorder, Sonic Restoration of Historical Recordings, Cambridge SoundWorks Model Eleven Jan., 66. Michael R. Lane, Part 1, June, 34; Part 2, Transportable Component System ("Auri- Sony D-555 Discman Portable CD Player, July, 26. cle"), June, 108. Feb., 32. The Audio Interview: Michael Cuscuna, Jon Carver Silver Seven Mono Amplifier, Feb., Sony TA-E1000ESD Digital Processing Pre- W. Poses, Aug., 32. 42. amplifier, June, 86. Interviews Cary Audio CAD-50 and CAD-50SL Mono Spica Angelus Loudspeaker ("Auricle"), Bill Levenson, Danny McCue, Jan., 50 Amplifiers, July, 68. Sept., 84. (Polygram Records). Delco/Bose Gold Series Car Audio System, SSI System 4000 II Dolby Surround Decod- Robert Parker, John Sunier, Feb., 24 (BBC Sept., 70. er, March, 78. Records). Denon DCP-100 Portable CD Player, Feb., Stax Kogyo SR-Lambda Pro Earspeakers Tom Frost, Susan Elliott, April, 42 (Sony 32. ("Auricle"), April, 94. Classical and others). Esoteric P-2 CD Transport and D-2 D/A Thiel CS5 Loudspeaker, Feb., 56. Michael Cuscuna, Jon W. Poses, Aug., 32 Converter, Sept., 42. Threshold SA/4e Power Amplifier ("Auri- (Blue Note and Mosaic Records). Forte Audio Model 4 Power Amplifier ("Auri- cle"), Jan., 110. Kurt Masur, Robert Angus, Dec., 44 (music cle"), Nov., 84. Westlake Audio BBSM-6F Loudspeaker, director, New York Philharmonic). Harman Kardon TD4800 Cassette Deck, Dec., 78. Feb., 78. Wharfedale Diamond IV Loudspeaker, Juilliard School of Music Jecklin Float ESC Earphones ("Auricle"), Aug., 60. Audio Magazine-Juilliard Scholarship Dec., 124. Yamaha DSP-A1000 Digital Sound-Field Award, Susan Elliott, Jan., 118. JVC AX-V1050 Audio/Video Amplifier, Aug., Processing Amplifier, June, 52. 50. KEF 105/3 Loudspeaker, June, 66. FM Reception/Antennas Loudspeakers Tractrix Horns: Improved Imaging and Krell MD-1 CD Transport and SBP-64X Digi- Plain Wire/Fancy Reception, Richard J. Phasing, Roy Delgado, Kerry Geist, and tal Signal Processor ("Auricle"), June, Kaufman, Jan., 46. Jim Hunter, March, 36. 114. Sound for Cinema: Acoustic Wave Cannon Lexicon CP-2 Digital Surround Processor, Forum from Bose, William R. Short, Nov., 31. March, 48. High Fidelity and Hearing Aids, Mead C. Luxman F-114 Surround Sound Processor/ Killion, Jan., 42. Measurement Techniques Amplifier, Nov., 60. Constructive Commentary (response to two Headphones: As Close As You Can Get, Martin-Logan Monolith IIIx Loudspeaker, 1990 Audio articles on controlling indoor Edward M. Long, April, 50. Sept., 50. noise), Jon R. Sank, Dec., 16. What Ever Became of Frequency Re- MAS DCC-1 Digital Control Center (from sponse?, Robert Long, June, 46. Music and Sound), Nov., 70. Headphones Impedance, Cables & Treble Loss, Herman Meridian D600B Loudspeaker, March, 62. Headphones: As Close As You Can Get, Burstein, Nov., 42. Meridian 208 Compact Disc Player/Pream- Edward M. Long, April, 50. plifier, April, 58. Obituaries Mission Cyrus One Integrated Amplifier, Hearing Aaron Copland, Feb., 9. Aug., 70. Forum: High Fidelity and Hearing Aids, Howard A. Roberson, May, 4. Monitor Audio Studio 10 Speaker, July, 44. Mead C. Killion, Jan., 42. Norman H. Crowhurst, Nov., 9.

169 18th Annual Car Stereo Directory, May, 51. Roadsigns (Philips DC777 car stereo with short wave), Ivan Berger, Dec., 40.

Construction Projects Auricle: SoundAid Modification Kit for Real- istic Minimus 7 Loudspeaker, July, 76. With a Little Help from My Friends (improv- ing speaker imaging with foam and felt), Richard J. Kaufman, Sept., 42.

Digital Compact Cassette (DCC) The ABCs of DCC: Measurements & Me- chanics, Leonard Feldman, Jan., 42. Auditory Scene Analysis: The Perceptual A/B/Xing DCC, David L. Clark, April, 32. Organization of Sound by Albert S. Breg- man, Jan., 110. Digital Technology The Physics of Musical Instruments by Nev- Currents (jitter and dither), John Eargle, ille H. Fletcher and Thomas D. Rossing, Jan., 24. Jan., 112. The ABCs of DCC: Measurements & Me- Full Frequency Stereophonic Sound by chanics, Leonard Feldman, Jan., 42. Robert Moon and Michael Gray, May, 31. Forum (SPARS code), Tom Jung, Feb., 21. Enhanced Sound: 22 Electronics Projects CO Packaging: A Boxing Free-for-All, Joe for the Audiophile by Richard J. Kaufman, Wiesenfelder, Feb., 28. July, 12. Multi-Bit and One-Bit D/A Conversion, Leon- The Down Home Guide to the Blues by ard Feldman, Feb., 78. Frank Scott and the staff of Down Home Currents (data reduction), John Eargle, Music, July, 12. March, 24 (Addendum, Aug., 4). Hearing: An Introduction to Psychological CEDAR Noise Reduction: Getting the Grain and Physiological Acoustics, Second Edi- Out, Beth C. Fishkind, March, 34. tion by Stanley A. Gelfand, July, 14. A/B/Xing DCC, David L. Clark, April, 32. The Roots of the Blues: An African Search Recordable CD: Promises & Problems, Mi- Addenda by Samuel Charters, July, 15. chael B. Martin, Part I, June, 28; Part II, Tuning In to Yesterday: Vintage Sets from Acoustical Engineering by Harry F. Olson, July, 36. the Golden Age of Broadcasting (Jan. Aug., 22. The Audio Interview: Heitaro Nakajima, Da- 1992, 48), June, 4. The New Stereo Soundbook by F. Alton vid Ranada, July, 32. Equipment Profile: First Sound Reference II Everest and Ron Streicher, Nov., 14. The Audio Interview: Jack Pfeiffer, Susan Passive Preamplifier (Jan. 1992, 98), Bullock on Boxes by Robert M. Bullock III, Elliott, Nov., 44. June, 4. assisted by Robert White, Nov., 14. Currents (Kodak's Photo CD system), John Currents (data reduction, March 1992, 24), DAT: The Complete Guide to Digital Audio Eargle, Dec., 38. Aug., 4. Tape by Delton T. Horn, Nov., 19. The Mechanics of Sony's MiniDisc: Beyond Digital Radio Basics by Skip Pizzi, Dec., the Caddy, Leonard Feldman, Dec., 56. AM Reception 134. Forum: Aim High on AM, Ted Alexander, RDAT by John Watkinson, Dec., 134. Directories Nov., 22. Coding for Digital Recording by John Wat- Car Stereo Directory, May. kinson, Dec., 134. CD Changers, 51; In-Dash CD Players, Anniversary of Audio Magazine 54; DAT Players, 58; Amps/Equalizers, Behind the Scenes, Bert Whyte, May, 8. Cables & Wires 60; Radios/Tape Players, 78; Speakers, Currents, John Eargle, May, 16. Forum (mutual inductance versus self-in- 86; Company Addresses, 137. Audio ETC, Edward Tatnall Canby, May, 19. ductance), R. A. Greiner, Jan., 28. Annual Equipment Directory, Oct. 45 Years of Audio Magazine, Sept., 49. Introduction, 119; CD Players & D/A Con- Car Stereo verters, 122; Amplifiers, 142; Preamplifi- Book Reviews Ford Explorer: Slick but Super Simple (in- ers, 170; Tuners, 186; Receivers, 190; New Ears: A Guide to Education in Audio stallation), Ivan Berger, May, 32. Turntables, 196; Tonearms, 198; Phono and the Recording Sciences, compiled Winter CES: Sweet Sounds, Ivan Berger, Cartridges, 200; Headphones, 204; Digi- and edited by Mark Drews, Jan., 110. May, 34. tal Recorders, 208; Analog Cassette 176 AUDIO/DECEMBER 1992 Decks, 210; Blank Cassettes, 214; Equal- JBL L7 Loudspeaker, Dec., 114. Thiel CS2.2 Loudspeaker ("Auricle"), Aug., izers, 216; Ambience & Surround Sound JVC RX-1050VTN A/V Receiver (Roundup), 68. Processors, 218; Signal Processors, 220; Dec., 46. Vacuum Tube Logic (VTL) Straight-Line D/A Crossovers, 222; Loudspeakers, 226; Kenwood KR-V9030 A/V Receiver (Round- Converter, Nov., 76. Company Addresses, 354. up), Dec., 46. van den Hul MM-1 Moving-Magnet Phono Koss ESP/950 Earphones ("Auricle"), Nov., Cartridge and Well Tempered Record Equipment Profiles 96. Player, Jan., 84. Acurus L10 Line Preamplifier, Sept., 66. Maplenoll Signature Ariadne Turntable and Vandersteen 2Ci Loudspeaker, June, 71. AKG K280 Earphones ("Auricle"), Jan., Tonearm, July, 50. Velodyne F-1500 Subwoofer (Thunder in the 106. Marantz CDR-1 Professional CD Recorder, Listening Room: Subwoofer Shootout), AKG K340 Earphones ("Auricle"), Nov., March, 42. Nov., 34. 106. McIntosh MC2600 Amplifier, Feb., 44. Vimak DS-2000 D/A Converter and Pream- Altec Lansing PSW10 Subwoofer (Thunder Mobile Fidelity Sound Lab UltrAmp Pream- plifier, Nov., 54. in the Listening Room: Subwoofer Shoot- plifier and Amplifier ("Auricle"), Dec., Well Tempered Record Player and van den out), Nov., 34. 130. Hul MM-1 Phono Cartridge, Jan., 84. AR M1 Loudspeaker, Jan., 68. Naim Audio NAP 135 Mono Amplifier and Win Research SM-10 Loudspeaker ("Auri- Arcam Delta 110 Digital Preamplifier, June, NAC 72 Preamplifier, March, 74. cle"), July, 80. 52. Nakamichi 1000mb CD Transport and Yamaha CDC-835 CD Changer, Dec., 103. Audix SCX-One Studio Microphone System, 1000p Digital Processor, Jan., 56. Dec., 108. Nobis Cantabile Amplifier, Dec., 72. Forum Beyerdynamic DT990 Pro Earphones ("Au- Onkyo Integra TA-207 Cassette Deck, Wires and cables, R. A Greiner, Jan , 28. ricle"), April, 74. Sept., 72. SPARS code, Tom Jung, Feb., 21. B & K Components PRO-10MC Preamplifi- Onkyo TX-SV909PRO A/V Receiver (Round- AIM High on AM, Ted Alexander, Nov., 22. er, April, 56. up), Dec., 46. Bright Star Altair Loudspeaker, July, 60. Oracle Premiere MK IV Turntable and Ora- Bryston 4B NRB Amplifier, Aug., 42. cle SME 345 Tonearm, April, 64. History Canton Ergo 100 Loudspeaker, March, 62. Panasonic CQ-ID60 Car Stereo with ID Log- Tuning In to Yesterday: Vintage Sets from conrad-johnson Premier Seven-A Preampli- ic, May, 40. the Golden Age of Broadcasting (Atwater fier and Evolution 2000 Amplifier, June, Philips LHH500 CD Player, April, 42. Kent Museum show), Jon R. Sank, Jan., 88. Philips DC777 Car Stereo with Short Wave, 48 (Addendum, June, 4). Crown Macro Reference Amplifier, June, ("Roadsigns"), Dec., 40. The Audio Interview: Henry Kloss, David 38. Pioneer VSX-D901S A/V Receiver (Round- Lander, Feb., 34. Denon AVR-3000 A/V Receiver (Roundup), up), Dec., 46. Behind the Scenes (Audio's 45th anniversa- Dec., 46. Pioneer Elite PD-65 CD Player ("Auricle"), ry), Bert Whyte, May, 8. Dymek DR333 General Coverage Receiver, Dec., 126. Currents (Audio's 45th anniversary), John Sept., 84. Proton AT-670 Tuner, March, 50. Eargle, May, 16. Dynaco QD-1 Series II Surround Sound Pro- PS Audio Digital Link II D/A Converter, July, Audio ETC (Audio's 45th anniversary), Ed- cessor ("Auricle"), Sept., 96. 70. ward Tatnall Canby, May, 19. Dynaco Stereo 70 Series II Tube Amplifier, Quart 490MCS Loudspeaker, Feb., 62. The Audio Interview: Heitaro Nakajima, Da- Nov., 64. Sansui RZ-9500AV A/V Receiver (Round- vid Ranada, July, 32. First Sound Reference II Passive Preamplifi- up), Dec., 46. The Audio Interview: Goddard Lieberson, er, Jan., 98 (Addendum, June, 4). Sennheiser HD-540 Reference II Earphones Robert Long, Sept., 32. Ford JBL Car Audio System, Aug., 48. ("Auricle"), June, 104. 45 Years of Audio Magazine, Sept., 49. Grado Labs SR200 & Joseph Grado Signa- Sitting Duck Listening Room Speaker- The Audio Interview: Jack Pfeiffer, Susan ture HP-2 Earphones and HP-1ADC Ear- Placement Program ("Auricle"), Nov., Elliott, Nov., 44. phone Amplifier ("Auricle"), Nov., 88. 102. The Audio Interview: Peter Asher, Ted Fox, Harman Kardon HD7600II CD Player, Feb., Snell Type B Loudspeaker, Sept., 88. Dec., 60. 76. Sony ES STR-GX99ES A/V Receiver Hsu Research HRSW 10 Subwoofer (Thun- (Roundup), Dec., 46. Home Theater & Surround Sound der in the Listening Room: Subwoofer SoundAid Modification Kit for Realistic Mini- Home Theater: A Pro's Way, Wynne Smith, Shootout), Nov., 34. mus 7 Loudspeaker ("Auricle"), July, 76. March, 28. Hughes AK-100 Sound Retrieval System Tannoy 615 Loudspeaker, Aug., 58. SRS: Surround Sound with Only Two Speak- Decoder, April, 48. TEAC Esoteric X-1 CD Player, Nov., 60. ers (Hughes' Sound Retrieval System), Infinity SSW-210 Subwoofer (Thunder in the Technics SA-GX910 A/V Receiver, July, 42. Arnold I. Klayman, Aug., 32. Listening Room: Subwoofer Shootout), Theta DSPro Prime D/A Converter ("Auri- Currents (JBL Synthesis One THX system), Nov., 34. cle"), Aug., 70. John Eargle, Sept., 18. AUDIO/DECEMBER 1992 177 A/V Receiver Roundup: Seven for Seven Obituaries Pro Recording Seventy to Seventeen Ninety-Five (Denon Arthur A. Janszen, Jan., 8. The Audio Interview: Goddard Lieberson, AVR-3000, JVC RX-1050VTN, Kenwood B. V. Pisha, Feb., 6. Robert Long, Sept., 32. KR-V9030, Onkyo TX-SV909PRO, Pioneer The Audio Interview: Jack Pfeiffer, Susan VSX-D901S, Sansui RZ-9500AV, and Photo CD Elliott, Nov., 44. Sony ES STR-GX99ES), Leonard Feld- Currents (Kodak's Photo CD system), John The Audio Interview: Peter Asher, Ted Fox, man, Dec., 46. Eargle, Dec., 38. Dec., 60.

Interviews Henry Kloss, David Lander, Feb., 34. George L. Augspurger, Wendy J. Duch, April, 36. Heitaro Nakajima, David Ranada, July, 32. Goddard Lieberson, Robert Long, Sept., 32. Jack Pfeiffer, Susan Elliott, Nov., 44. Peter Asher, Ted Fox, Dec., 60.

Listening & Listening Rooms Currents (auralization and Lexicon Acoustic Reverberance Enhancement System), John Eargle, Feb., 18. Home Theater: A Pro's Way, Wynne Smith, March, 28. A/B/Xing DCC, David L. Clark, April, 32. The Audio Interview: George L. Augs- purger, Wendy J. Duch, April, 36. SRS: Surround Sound with Only Two Speak- ers (Hughes' Sound Retrieval System), Arnold I. Klayman, Aug., 32. Listening and Experience (listening panel for B & 0), Villy Hansen and S. K. Pra- manik, Aug., 38.

Loudspeakers The Audio Interview: Henry Kloss, David Lander, Feb., 34. A New Type of Speaker: A Sphere of Sound (Museatex Audio's Melior Point Source speakers), Moray Campbell and Scott Robinson, June, 34. Currents (JBL Synthesis One THX system), John Eargle, Sept., 18. With a Little Help from My Friends (improv- ing speaker imaging with foam and felt), Richard J. Kaufman, Sept., 42. Thunder in the Listening Room: Subwoofer Shootout (Altec Lansing PSW10, Hsu Re- search HRSW 10, Infinity SSW-210, and Velodyne F-1500), D. B. Keele, Jr., Nov., 34.

MiniDisc (MD) The Mechanics of Sony's MiniDisc: Beyond the Caddy, Leonard Feldman, Dec., 56.

Noise Reduction CEDAR Noise Reduction: Getting the Grain Out, Beth C. Fishkind, March, 34.

178 AUDIO/DECEMBER 1992 Advent Audio Focus and Mini-Advent A/V Loudspeakers ("Auricle"), Aug., 73. Aiwa XK-S9000 Cassette Deck, July, 50. Alpine 7980 Car CD Changer and Tuner, Feb., 68. Atlantic Technology System 150 HT Sur- round Loudspeakers ("Auricle"), Feb., 76. ADDENDA Slide Tuning a Port Speaker, Harold Wein- Audio by Van Alstine Super Pas 4i Pream- The Audio Interview: Jack Pfeiffer (Nov. berg, Nov., 36. plifier Kit ("Auricle"), Aug., 71. 1992, 44), Jan., 11. AudioQuest 7000nsx Moving-Coil Phono Taking Up Resonance: Finding Room Modes DIGITAL TECHNIQUES Cartridge ("Auricle"), Nov., 90. on Your Computer (April 1993, 32), May, Currents (SigTech DSP unit), John Eargle, Audio Research LS3 B Line Preamplifier 12, and June, 8. April, 20. ("Auricle"), March, 72. Auricle: Acurus DIA 100 Amplifier (July Taking Up Resonance: Finding Room Modes BASF Ferro Extra I, Chrome Extra II, 1993, 74), Sept., 8. on Your Computer, John Sehring, April, Chrome Super II, and Chrome Maxima The Lowdown on Subwoofers (Aug. 1993, 32 (Addenda, May, 12, and June, 8). II Cassettes, June, 38. 38), Oct., 8. Roadsigns (MiniDisc and Digital Compact Beyerdynamic DT 911 Earphones ("Auri- Equipment Profile: Parasound HCA-2200II Cassette for car stereo), Ivan Berger, cle"), Jan., 131. Amplifier (Aug. 1993, 42), Nov., 6. May, 22. Beyerdynamic DT 770 Pro Earphones Annual Equipment Directory (Oct. 1993), Currents (Tandy's Video Information Sys- ("Auricle"), March, 78. Dec., 10. tem, in Memorex MD-2500 player), CAIG ProGold Contact Conditioner ("Au- John Eargle, June, 26. ricle"), Dec., 100. BOOK REVIEWS The Audio Interview: Takeaki Anazawa, Da- Cambridge SoundWorks Surround System The Compact Disc Handbook, Second Edi- vid Ranada, June, 56. ("Auricle"), Jan., 134. tion by Ken C. Pohlmann, Jan., 32. Camelot Technology Arthur D/A Convert- Music Speech Audio by William J. DIRECTORIES er ("Auricle"), June, 84. Strong and George R. Plitnik, Jan., 34. Car Stereo Directory, May. Celestion 300 Loudspeaker, March, 50. Handbook of Acoustical Measurements and MiniDisc Players, 49; Ambience & Sur- Cello Palette Preamplifier ("Auricle"), Noise Control, Third Edition, edited by round Sound Processors, 49; Amps/ June, 80. Cyril M. Harris, Jan., 36. Equalizers, 53; Radios/Tape Players, 68; The Penguin Guide to Bargain Compact Compact Disc Changers & D/A Converters, Discs and Cassettes by Ivan March, Ed- 78; In-Dash Compact Disc Players, 82; ward Greenfield, and Robert Layton, Speakers, 87; Company Addresses, 137. Aug., 21. Annual Equipment Directory, Oct. Introduction, 72A; Compact Disc Play- CAR STEREO ers & D/A Converters, 74 (Addendum, Roadsigns (products to combat car and Dec., 10); Amplifiers, 92; Preamplifiers, road noise), Ivan Berger, Jan., 40. 122; Tuners, 140; Receivers, 142; Turnta- Roadsigns (Radio Broadcast Data System), bles, 152; Tonearms, 156; Phono Car- Ivan Berger, April, 16. tridges, 158; Headphones, 164; Digital Coda Technologies FET Preamplifier 01 Roadsigns (MD and DCC), Ivan Berger, Recorders, 172; Analog Cassette Decks, and Amplifier System 100, March, 60. May, 22. 174; Blank Tapes & Discs, 177; Equaliz- Counterpoint Clearfield Metropolitan Commander Bond, Your Car Is Ready! (As- ers, 182; Ambience & Surround Sound Loudspeaker, July, 56. ton Martin Virage installation), Ivan Processors, 186; Signal Processors, 194; Dahlquist DQ-30i Loudspeaker, June, 68. Berger, May, 32. Crossovers, 196; Loudspeakers, 200 Denon TU-680NAB "SuperRadio," April, 19th Annual Car Stereo Directory, May, 49. (Addendum, Dec., 10); Company Ad- 64. Roadsigns (CouponRadio printouts of Ra- dresses, 329. Denon DX-1, S-PORT High, HD6, HD7, dio Broadcast Data), Ivan Berger, Aug., HD8, HDM, and MG-X Metal Cassettes, 32. ELECTRICAL NOISE June, 38. Roadsigns (Mach 460 system in Ford Mus- Zapping Electrical Noise, Richard J. Kauf- DGX Audio DDL-1 Loudspeaker and tang), Ivan Berger, Nov., 28. man, Aug., 34. DDA-1 Digital Processing Amplifier, Roadsigns (Bose Beta system in Mercedes- Quiet by Design, George Schulson, Sept., Nov., 48. Benz 600SEC), Ivan Berger, Dec., 32. 36. Digital Phase AP-1 Loudspeaker, Dec., 66. Etymotic Research ER4 Earphones, Dec., CONSTRUCTION PROJECTS EQUIPMENT PROFILES 78. Zapping Electrical Noise, Richard J. Kauf- Acurus DIA 100 Amplifier ("Auricle"), Fuji DR-I, DR-II, FR-IIx, FR-IIx Pro, ZII, man, Aug., 34. July, 74 (Addendum, Sept., 8). and FR Metal Cassettes, June, 38. AUDIO/DECEMBER 1993 134 Genesis Genre I Loudspeaker, Sept., 52. Scotch BX, CX, and XSII-S Cassettes June, INTERVIEWS Harman Kardon HK6950R Integrated Am- 38. Henry Z. Steinway, D. W. Fostle, Jan., 52. plifier ("Auricle"), Sept., 74. SigTech AEC 1000 Acoustic Environment Eddie Kramer, Ted Fox, Feb., 24. JVC HA-D990 Earphones ("Auricle"), Jan., Correction System, Dec., 82. Brian Eno, John Diliberto, March, 38. 108. Sonance AGI-1 and RGFI-1 Isolators and Takeaki Anazawa, David Ranada, June, 56. JVC GI, AFII, and XFIV Cassettes, June, 38. LA-1 Line Amplifier ("Auricle"), Dec., Bruce Iglauer, Jonathan Poses, Sept., 26. Krell KRC Preamplifier ("Auricle"), Oct., 96. Thomas Z. Shepard, Susan Elliott, Nov., 38. 41. Sonic Frontiers SFL-1 Line Preamplifier Legacy Convergence Loudspeaker, Feb., 54. and SFS-40 Amplifier, Nov., 66. LISTENING & LISTENING ROOMS Mark Levinson Reference Digital Processor Sony MZ-1 Portable MiniDisc Recorder, The Uneasy Truce Between Music & the No. 30, Jan., 68. Feb., 44. Room, F. Alton Everest, Feb., 36. LF Engineering M-601 AM Antenna ("Au- Sony MDX-U1 Car MiniDisc Player and Coloration of Room Sound by Reflections, ricle"), July, 72. Tuner, May, 38. F. Alton Everest, March, 30. Linn Karik CD Transport and Numerik Sony HF, ES-I, UX, UX-Pro, Metal SR, and Currents (SigTech DSP unit), John Eargle, D/A Converter ("Auricle"), Feb., 80. Metal Master Cassettes, June, 38. April, 20. Lirpa Inflatable Audio Reviewer ("Auri- SOTA Vanguard II CD Player, Nov., 60. Stereo for the Movies: The Center Channel, cle"), April, 74. Soundstream DAC-1 D/A Converter ("Au- Tomlinson Holman, April, 26. Marantz DD-92 DCC Recorder, March, 44. ricle"), April, 70. Taking Up Resonance: Finding Room Modes Maston Audio Deluxe Reference Loud- TDK D, DS-X, SD, SA, SA-X, MA, MA-X, on Your Computer, John Sehring, April, speaker System, Jan., 82. and MA-XG Cassettes, June, 38. 32 (Addenda, May, 12, and June, 8). Maxell UR, XLI, XLII, XLII-S, MX, MX-S, Technics RS-DC10 DCC Recorder, April, Zapping Electrical Noise, Richard J. Kauf- and Metal Vertex Cassettes, June, 38. 40. man, Aug., 34. McCormack Audio DNA-1 Amplifier and Video Acoustics Home Theater Loud- The Lowdown on Subwoofers, R. A. Greiner, ALD-1 Preamplifier ("Auricle"), Aug., speaker System ("Auricle"), June, 90. Aug., 38 (Addendum, Oct., 8). 54. Yamaha DSP-A2070 Digital Sound-Field Quiet by Design, George Schulson, Sept., Memorex dBS, HBSII and CDX IV Metal Processing Amplifier, Sept., 44. 36. Cassettes, June, 38. Metaxas Solitaire Amplifier, June, 62. HISTORY LOUDSPEAKERS Neumann KM 100 Microphone System, The Audio Interview: Henry Z. Steinway, The Uneasy Truce Between Music & the Nov., 80. D. W. Fostle, Jan., 52, Room, F. Alton Everest, Feb., 36.

Optimus DCT-2000 DCC Recorder, Jan., Mechanics Hall: Meetinghouse for Music, Coloration of Room Sound by Reflections, 96. Rick Howland, Jan., 64. F. Alton Everest, March, 30. Panamax Max 1000 Surge Protector and The Audio Interview: Eddie Kramer, Ted Stereo for the Movies: The Center Channel, Line Conditioner ("Auricle"), June, 86. Fox, Feb., 24. Tomlinson Holman, April, 26. Paradigm Studio Monitor Loudspeaker, The Audio Interview: Brian Eno, John Dili- Taking Up Resonance: Finding Room Modes April, 52. berto, March, 38. on Your Computer, John Sehring, April, Parasound HCA-2200II Amplifier, Aug., 42 Behind the Scenes (25th anniversary of col- 32 (Addenda, May, 12, and June, 8). (Addendum, Nov., 6). umn), Bert Whyte, June, 30. The Lowdown on Subwoofers, R. A. Greiner, Philips DCC-900 DCC Recorder, July, 66. The Audio Interview: Takeaki Anazawa, Da- Aug., 38 (Addendum, Oct., 8). Pioneer DEH-M990DSP Car CD Player vid Ranada, June, 56. Slide Tuning a Port Speaker, Harold Wein- and Receiver, Sept., 64. Currents (RCA's Living Stereo reissue se- berg, Nov., 36. PS Audio UltraLink D/A Converter, Aug., ries), John Eargle, Aug., 28. A Quest for the Audibility of Polarity, R. A. 46. The Audio Interview: Bruce Iglauer, Jona- Greiner and Douglas E. Melton, Dec., Quicksilver Audio M135 Mono Amplifier, than Poses, Sept., 26. 40. Dec., 56. The Audio Interview: Thomas Z. Shepard, Realistic Supertape XR, Supertape HD, Su- Susan Elliott, Nov., 38. MEASUREMENT TECHNIQUES pertape Premium MII, and Supertape Savoy Jumps Again, Howard Mandel, Dec., The Uneasy Truce Between Music & the MIV Cassettes, June, 38. 52. Room, F. Alton Everest, Feb., 36. AUDIO/DECEMBER 1993 135 Coloration of Room Sound by Reflections, Sound the Horn (Alligator's Trumpet Rec- TAPE & TAPE RECORDING F. Alton Everest, March, 30. ords series), Eugene Pitts, Sept., 34. Mass Tape Test—51 Cassettes: The Second Taking Up Resonance: Finding Room Modes Savoy Jumps Again, Howard Mandel, Dec., Greatest Cassette Test Ever, Edward J. on Your Computer, John Sehring, April, 52. Foster, June, 38. 32 (Addenda, May, 12, and June, 8). Beyond Output: Environmental Stability of Mass Tape Test—51 Cassettes: The Second Speaker Cables: Testing for Audibility, Fred Audio Cassettes, Mark Weavers, Dec., Greatest Cassette Test Ever, Edward J. E. Davis, July, 34. 48. Foster, June, 38. Speaker Cables: Testing for Audibility, Fred E. Davis, July, 34. The Lowdown on Subwoofers, R. A. Greiner, Aug., 38 (Addendum, Oct., 8). Beyond Output: Environmental Stability of Audio Cassettes, Mark Weavers, Dec., 48. A Quest for the Audibility of Polarity, R. A. Greiner and Douglas E. Melton, Dec., 40.

NOISE REDUCTION Zapping Electrical Noise, Richard J. Kauf- man, Aug., 34. Quiet by Design, George Schulson, Sept., 36.

Obituary: Bernard Kardon, Aug., 10.

PRO RECORDING Mechanics Hall: Meetinghouse for Music, Rick Howland, Jan., 64. The Audio Interview: Eddie Kramer, Ted Fox, Feb., 24. The Audio Interview: Brian Eno, John Dili- berto, March, 38. The Audio Interview: Takeaki Anazawa, Da- vid Ranada, June, 56. Music City Madness: Doin' a Demo, Allan Girdler, July, 44. The Audio Interview: Bruce Iglauer, Jona- than Poses, Sept., 26. The Audio Interview: Thomas Z. Shepard, Susan Elliott, Nov., 38.

PSYCHOACOUSTICS The Uneasy Truce Between Music & the Room, F. Alton Everest, Feb., 36. Coloration of Room Sound by Reflections, F. Alton Everest, March, 30. A Quest for the Audibility of Polarity, R. A. Greiner and Douglas E. Melton, Dec., 40.

REISSUED RECORDINGS Currents (RCA's Living Stereo series), John Eargle, Aug., 28.

AUDIO/DECEMBER 1993 136 1994 Subject Index

EQUIPMENT PROFILES Accuphase DP-90 CD Transport and DC-91 D/A Converter, April, 44. A.C. POWER Currents (video data reduction), John Eargie, Acoustic Research Limited Model 2 Preampli- That Mysterious Source: The A.C. Power Line, Nov., 20. fier, Aug., 42. Edward M. Long, June, 34. The Audio Interview: Tom Stockham, Daniel Adcom GFA-5800 Amplifier ("Auricle"), Power Disturbances, Susan Owen, June, 38. Levitin, Nov., 38. Nov., 92. Video CD: A Coding Challenge, Robert A. Fin- Alpha-Core Goertz MI 1 and MI 2 Speaker ADDENDA ger, Dec., 38. Cables ("Auricle"), Aug., 64. Equipment Profile: DGX Audio DDL-1 Loud- Alpine 7982 Car CD Changer and Tuner, speaker and DDA-1 Digital Processing Am- DIRECTORIES Nov., 68. plifier (Nov. 1993, 48), Jan., 8. Car Stereo Directory, May. Altec Lansing AC10 Computer Audio Con- Equipment Profile: Digital Phase AP-1 Loud- DCC & MD Players, 37; Ambience & Sur- troller ("Auricle"), Dec., 96. speaker (Dec. 1993, 66), March, 8. round Sound Processors, 38; Amps/Equal- Apogee Acoustics Studio Grand Loudspeakers Equipment Profile: NHT Model 3.3 Loudspeak- izers, 41; Radios/Analog Tape Players, 60; ("Auricle"), July, 58. er (Feb., 49), July, 6. CD Changers & D/A Converters, 69; In- ASC NA-4 Shadow Caster Acoustic Panels Dash CD Players, 72; Speakers, 75; Compa- ("Auricle"), Sept., 56. BOOK REVIEWS ny Addresses, 127. Audio Alchemy DTI, XDP, and Power Station Theory and Design of Loudspeaker Enclosures Annual Equipment Directory, October. Two D/A Converter System ("Auricle"), by J. E. Benson, Jan., 33. Introduction, 72A; CD Players & Trans- March, 74. Nothing But the Blues, edited by Lawrence ports, 74; D/A Converters, 84; Amplifiers, AudioControl C-101 Series III Equalizer/An- Cohn, July, 16. 94; Preamplifiers, 128; Tuners, 146; Re- alyzer, Aug., 54. Audition by Pierre Buser and Michel Imbert ceivers, 149; Turntables, 158; Tonearms, AudioPrism Iso-Bearing Vibration Absorbers (translated by R. H. Kay), July, 17. 160; Phono Cartridges, 162; Headphones, ("PlayBack"), Nov., 128. Understanding Music with AI: Perspectives on 168; DAT, DCC, & MD Player/Recorders, AudioSource Amp One Amplifier, June, 62. Music Cognition, edited by Mira Balaban, 174; Analog Cassette Decks, 175; Blank Ayre V-3 Amplifier, Sept., 38. Kemal Ebcioglu, and Otto Laske, July, 18. Tapes & Discs, 178; Equalizers, 180; Ambi- Beyerdynamic IRS 790 Earphones ("Auri- Electrostatic Loudspeaker Design and Con- ence & Surround Sound Processors, 184; cle"), May, 32. struction by Ronald Wagner, Sept., 13. Signal Processors, 190; Crossovers, 192; Bib Compact Disc Restorer Polish ("Auri- Loudspeakers, 196; Company Addresses, cle"), Feb., 68. CABLES & WIRES 320. B-I-C America V-12 Subwoofer and SWA-100 Auto Speaker Polarity, Fred E. Davis, June, 40. Mono Subwoofer Amplifier, Sept., 54. Speaker Cables: Measurements vs. Psycho- ELECTRICAL NOISE Bryston BP20 Preamplifier, July, 42. acoustic Data, Edgar Villchur, July, 34. That Mysterious Source: The A.C. Power Line, B & W THX Home Cinema System ("Auri- Edward M. Long, June, 34. cle"), July, 66. CAR STEREO Power Disturbances, Susan Owen, June, 38. Cambridge SoundWorks EXO-1 Crossover Roadsigns (Dodge Intrepid, Chrysler Con- ("Auricle"), Jan., 102. corde, and Eagle Vision with Infinity Spa- EMERGING TECHNOLOGIES Canon S-35 Loudspeakers ("PlayBack"), tial Imaging sound system), Ivan Berger, Sound Conditioning Through DSP, Daniel Nov., 128. Jan., 38. Sweeney, March, 24. Chase Technologies HTS-1 Surround Proces- Roadsigns (Lexus/Pioneer and Lexus/Nakami- Digital Film Sound: Rated S for Sound, E. Brad sor ("PlayBack"), Dec., 144. chi sound systems), Ivan Berger, Feb., 22. Meyer, June, 44. Classe Audio Thirty Preamplifier ("Auricle"), 20th Annual Car Stereo Directory, May, 37. Spectrum (AM radio news), Ivan Berger, July, Feb., 70. Auto Speaker Polarity, Fred E. Davis, June, 40. 26. conrad-johnson Premier Twelve Mono Am- Currents (Pioneer CLD-A100 CD/LaserDisc plifier, Dec., 80. DIGITAL TECHNIQUES player, with LaserActive game module), Crown SASS-P MKII Stereo PZM Micro- Sound Conditioning Through DSP, Daniel John Eargle, Aug., 17. phone, April, 66. Sweeney, March, 24. Spectrum (two-layer optical discs), Ivan Berg- Denon Professional Test CDs ("Auricle"), Digital Film Sound: Rated S for Sound, E. Brad er, Aug., 20. Jan., 108. Meyer, June, 44. Spectrum (Dolby Surround Digital), Ivan Discwasher CD Stealth CD Cleaning System Currents (Pioneer CLD-A100 CD/LaserDisc Berger, Sept., 14. ("PlayBack"), Dec., 144. player, with LaserActive game module), Digital Radio, John Gatski, Sept., 34. Dolby Laboratories Consumer Guide to Home John Eargle, Aug., 17. Currents (video data reduction), John Eargle, Theatre Videocassette ("PlayBack"), Dec., Spectrum (two-layer optical discs), Ivan Berg- Nov., 20. 144. er, Aug., 20. Video CD: A Coding Challenge, Robert A. Fin- Electro-Voice N/D 857B Microphone, Dec., Digital Radio, John Gatski, Sept., 34. ger, Dec., 38. 88. AUDIO/DECEMBER 1994 141 Energy Veritas vl.8 Loudspeaker, Sept., 42. Soundproofing the Teenager, Rebecca Day, Epos ES11 Loudspeaker, Aug., 48. Feb., 30. Fosgate-Audionics Model Four Surround Sound Conditioning Through DSP, Daniel Processor, Jan., 70. Theta Digital Cobalt 307 D/A Converter Sweeney, March, 24. GE Superadio III AM/FM Mono Radio ("Auricle"), Jan., 88. The Best Place for Your Speakers? Your Com- ("PlayBack"), Nov., 128. Thiel CS1.5 Loudspeaker ("Auricle"), Nov., puter Knows!, Roy Allison, Aug., 36. Harman Kardon Festival 500 Music System 98. Planning a Home Theater System: Where Do ("PlayBack"), Nov., 128. TopBox Speaker-Enclosure Computer Pro- You Begin?, William R. Hoffman, Nov., 46. Harman Kardon AVR30 A/V Receiver, Dec., gram ("Auricle"), June, 74. 48. VMPS FF-1 Loudspeaker ("Auricle"), June, LOUDSPEAKERS JVC XL-G3900 Car CD Player and Receiver, 68. One Thump or Two: The Advantages of Stereo Jan., 78. Subwoofers, John F. Sehring, Feb., 26. KEF Q70 Loudspeaker, Dec., 71. HEADPHONES Sound Conditioning Through DSP, Daniel Mark Levinson No. 38S Preamplifier ("Auri- Sound Conditioning Through DSP, Daniel Sweeney, March, 24. cle"), Dec., 98. Sweeney, March, 24. The Best Place for Your Speakers? Your Com- Lexicon CP-3 and CP-3 Plus Surround puter Knows!, Roy Allison, Aug., 36. Processors, March, 62. HISTORY Planning a Home Theater System: Where Do Martin-Logan Aerius Loudspeaker ("Auri- Noise Cancellation in the '30s, Ivan Berger, You Begin?, William R. Hoffman, Nov., 46. cle"), Feb., 64. March, 27. McIntosh MC 1000 Mono Amplifier, Feb., 34. The Audio Interview: Tony Schwartz, David MEASUREMENT TECHNIQUES M & K S-5000THX Satellite and MX- Lander, March, 34. That Mysterious Source: The A.C. Power Line, 5000THX Powered Subwoofer, June, 52. The Audio Interview: Len Feldman, David Edward M. Long, June, 34. NCT Noisebuster NB-DX Earphones, Sept., Lander, April, 30. Power Disturbances, Susan Owen, June, 38. 52. Classic Jazz Remasters: Art Pepper/Brubeck Auto Speaker Polarity, Fred E. Davis, June, 40. NEAR 50Me Loudspeaker, Jan., 58. Quartet/Sonny Rollins, Bruce and Jenny Speaker Cables: Measurements vs. Psycho- NHT Model 3.3 Loudspeaker, Feb., 49 (Ad- Bartlett, July, 38. acoustic Data, Edgar Villchur, July, 34. dendum, July, 6). The Audio Interview: Bob Weinstock, James The Best Place for Your Speakers? Your Com- Onkyo TX-SV515PRO A/V Receiver (Three Rozzi, Aug., 30. puter Knows!, Roy Allison, Aug., 36. $500 Dolby Pro Logic Receivers), Jan., 44. Currents (Classic Records' vinyl reissues of The Audio Interview: Tom Stockham, Daniel Optimus STAV-3400 A/V Receiver, April, 56. RCA Living Stereo LPs), John Eargle, Sept., Levitin, Nov., 38. Panasonic RQ-DP7 Portable DCC Player, 20. Planning a Home Theater System: Where Do Feb., 42. The Audio Interview: Marc Aubort, D. W. Fos- You Begin?, William R. Hoffman, Nov., 46. Panasonic CQ-DC1 Car Tuner/DCC Player, tle, Sept., 26. July, 52. The Audio Interview: Tom Stockham, Daniel NOISE REDUCTION Pass Laboratories Aleph 0 Mono Amplifier Levitin, Nov., 38. Sound Conditioning Through DSP, Daniel ("Auricle"), Sept., 58. Sweeney, March, 24. Pioneer VSX-502 A/V Receiver (Three S500 HOME THEATER & Noise Cancellation in the '30s, Ivan Berger, Dolby Pro Logic Receivers), Jan., 44. SURROUND SOUND March, 27. Polk Audio LS 90 Loudspeaker ("Auricle"), Three $500 A/V Receivers: Explosive Value in The Audio Interview: Tom Stockham, Daniel Feb., 58. Home Theater, Leonard Feldman, Jan., 44. Levitin, Nov., 38. PS Audio Reference Link LS Digital Preampli- Digital Film Sound: Rated S for Sound, E. Brad fier ("Auricle"), June, 80. Meyer, June, 44. OBITUARIES Quad 67 CD Player, March, 46. Spectrum (Dolby Surround Digital), Ivan Herman Burstein, Feb., 10. Rote! RHB-10 Amplifier and RHA-10 Pream- Berger, Sept., 14. Leonard Feldman, April, 6 and 30. plifier ("Auricle"), Jan., 94. Planning a Home Theater System: Where Do Bart Locanthi, April, 26. Scientific Fidelity Crown Joule Loudspeaker, You Begin?, William R. Hoffman, Nov., 46. Ralph Hodges, April, 26. March, 49. Bert Whyte, June, 4 and 28. Sentec DiAna D/A Converter ("Auricle"), Ju- INTERVIEWS Avery Fisher, June, 30. ly, 62. Daniel Lanois, John Diliberto, Jan., 50. Signet SL280ex Loudspeaker, July, 46. Tony Schwartz, David Lander, March, 34. PRO RECORDING Sonance 2120 Amplifier ("Auricle"), Aug., 60. Len Feldman, David Lander, April, 30. The Audio Interview: Daniel Lanois, John Sony TCD-D7 Portable DAT Recorder, June, Mark Wilder/Classic Jazz Remasters, Bruce Diliberto, Jan., 50. 48. and Jenny Bartlett, July, 38. The Audio Interview: Tony Schwartz, David Sony MDS-501 MiniDisc Deck, Nov., 56. Bob Weinstock, James Rozzi, Aug., 30. Lander, March, 34. Sony MZ-E2 Portable MiniDisc Player, Nov., Marc Aubort, D. W. Fostle, Sept., 26. Classic Jazz Remasters: Art Pepper/Brubeck 64. Ivor Tiefenbrun/Mondo Audio, Ken Kessler, Quartet/Sonny Rollins, Bruce and Jenny Soundstream DA-2 Amplifier, Nov., 76. Nov., 16. Bartlett, July, 38. Stax DAC-Talent BD D/A Converter, Nov., Tom Stockham, Daniel Levitin, Nov., 38. The Audio Interview: Bob Weinstock, James 84. Rozzi, Aug., 30. Technics SA-GX650 A/V Receiver ( Three S500 LISTENING & LISTENING ROOMS The Audio Interview: Marc Aubort, D. W. Fos- Dolby Pro Logic Receivers), Jan., 44. One Thump or Two: The Advantages of Stereo tie, Sept., 26. Terk Technologies Leapfrog Remote-Control Subwoofers, John F. Sehring, Feb., 26. The Audio Interview. Tom Stockham, Daniel Extender ("Auricle"), Aug., 65. "No, You Don't Have to Turn It Down!": Levitin, Nov., 38.

AUDIO/DECEMBER 1994 142 PSYCHOACOUSTICS TAPE & TAPE RECORDING Speaker Cables: Measurements vs. Psycho- The Audio Interview: Tony Schwartz, David acoustic Data, Edgar Villchur, July, 34. Lander, March, 34. Jurassic Tape: How To Be a Good Audio Dino, RADIO David B. Cameron, April, 38. Spectrum (AM radio news), Ivan Berger, July, 26. Digital Radio, John Gatski, Sept., 34. THEATER SOUND REISSUED RECORDINGS Digital Film Sound: Rated S for Sound, E. Brad Classic Jazz Remasters: Art Pepper/Brubeck Meyer, June, 44. Quartet/Sonny Rollins, Bruce and Jenny Bartlett, July, 38. VIDEO CD Currents (Classic Records' vinyl reissues of Video CD: A Coding Challenge, Robert A. Fin- RCA Living Stereo LPs), John Eargle, Sept., 20. ger, Dec., 38.

AUDIO/DECEMBER 1994 143 The Promise and Problems of Computer Sound Boards, Bascom H. King, Nov., 34.

DIRECTORY ADDENDA Road-Tests Radios, Mike Stosich, Annual Equipment Directory, October Equipment Profile: Stax DAC-Talent BD May, 34. Introduction, 64A; CD Players & Trans- D/A Converter (Nov. 1994, 84), Jan., 37. Car Audio: Get Your Head Into It, Richard ports, 66; D/A Converters, 76; Amplifiers, Planning a Home Theater System: Where Clark and David Navone, May, 38. 85; Preamplifiers, 130; Tuners, 153; Re- Do You Begin? (Nov. 1994, 46), March, 16. Roadsigns (RDS and ID Logic), Ivan Berger, ceivers, 155; Turntables, 162; Tonearms, Equipment Profile: Audio Alchemy DTI-PRO July, 28. 166; Phono Cartridges, 168; Headphones, Jitter Reducer and Resolution Enhancer Roadsigns (integrated dashboards), Ivan 174; Digital Player/Recorders, 184; Analog (Feb., 64), May, 32. Berger, Aug., 24. Cassette Decks, 186; Blank Tapes & Discs, Build a Mono, 100-Watt Class-A Amp 190; Equalizers, 194; Ambience & Sur- (Part I, Jan., 42; Part II, Feb., 36; Part COMPUTER SOUND BOARDS round Sound Processors, 196; Signal III, March, 34), July, 23. The Promise and Problems of Computer Processors, 202; Crossovers, 204; Loud- Equipment Profile: VAC PA160 Mono Ampli- Sound Boards, Bascom H. King, speakers, 209; Company Addresses, 340. fier (Aug., 62), Oct., 20. Nov., 34. Surround Speakers: Confusion, Diffusion, Adding Multimedia to Your PC, John M. EMERGING TECHNOLOGIES and Resolution (July, 40), Nov., 18. Woram, Nov., 38. Currents (CD Interactive), John Eargle, March, 14. AMPLIFIERS CONSTRUCTION PROJECTS Currents (Digital VideoDisc), John Eargle, Build a Mono, 100-Watt Class-A Amp, Dr. Build a Mono, 100-Watt Class-A Amp, Dr. May, 16. Norman E. Thagard, Part I, Jan., 42; Norman E. Thagard, Part I, Jan., 42; Roadsigns (car navigation systems), Ivan Part II, Feb., 36; Part III, March, 34; Ad- Part II, Feb., 36; Part III, March, 34; Ad- Berger, May, 24. dendum, July, 23. dendum, July, 23. Roadsigns (integrated dashboards), Ivan Switched-On Amps: Power with a Pulse, Roll Your Own Subwoofer: Foundations for Berger, Aug., 24. Bascom H. King, Feb., 42. Sound, John Sehring, July, 34. RCA's Digital Satellite System: A Gourmet Dish or a Pot of Trouble?, Anthony H. BOOK REVIEWS DIGITAL TECHNOLOGY & Cordesman and James Harper, Aug., 32. The Land Where the Blues Began by Alan TECHNIQUES Currents (Dolby AC-3), John Eargle, Lomax, June, 6. Switched-On Amps: Power with a Pulse, Nov., 26. Higher Superstition: The Academic Left Bascom H. King, Feb., 42. and Its Quarrels with Science by Paul R. Currents (CD Interactive), John Eargle, EQUIPMENT PROFILES Gross and Norman Levitt, June, 6. March, 14. Acoustic Research 338 Loudspeaker ("Au- Balkan Ghosts: A Journey Through History CD Players on the Go, Edward M. Long, ricle"), Nov., 82. by Robert D. Kaplan, July, 12. April, 22. Acurus 200X3 Three-Channel Amplifier, In Marconi's Footsteps: Early Radio by Peter 20,000-Watt Hi-Fi Gets Digital EQ, Feb., 47. R. Jensen, July, 12 and Aug., 20. Richard S. Burwen, April, 28. Aiwa XP-559 Portable CD Player (CD High Definition Compact Disc Recordings Currents (Digital VideoDisc), John Eargle, Players on the Go), April, 22. by Howard Ferstler, Oct., 46. May, 16. Aiwa AD-F850 Cassette Deck, Sept., 56. Pulse of the Planet by Jim Metzner, Oct., 46. Roadsigns (car navigation systems), Ivan Allsop 58200 CD Repair Kit ("PlayBack"), The Complete Guide to High-End Audio by Berger, May, 24. Nov., 119. Robert Harley, Oct., 46. RCA's Digital Satellite System: A Gourmet Alpine CDA-7939 Car Stereo, Aug., 38. Dish or a Pot of Trouble?, Anthony Assemblage DAC-1 D/A Converter Kit, CAR STEREO H. Cordesman and James Harper, Nov., 74. Switched-On Amps: Power with a Pulse, Aug., 32. Audio Alchemy DTI-PRO Jitter Reducer Bascom H. King, Feb., 42. Five CD Portables: Digital Memories for and Resolution Enhancer, Feb., 64 (Ad- Roadsigns (car navigation systems), Ivan Road or Track, Edward M. Long, Sept., 24. dendum, May, 32). Berger, May, 24. Currents (Dolby AC-3), John Eargle, Audio Alchemy Vac-in-the-Box Phono Tuners in Transit: How Blaupunkt Nov., 26. Preamplifier ("PlayBack"), July, 96. AUDIO/DECEMBER 1995 116 Audio Artistry Dvorak A/V Loudspeaker Marantz SR-92 Mk II A/V Receiver, System ("PlayBack"), Nov., 119. March, 50. AudioControl Rialto Equalizer ("Auri- Marantz LCD410 Personal TV/Radio cle"), Dec., 84. Direct Acoustics Silent Loudspeaker ("Au- ("PlayBack"), April, 96. AudioPrism Quiet-Line A.C. Line Filter ricle"), Dec., 72. MB Quart Vitalizer Psychacoustic Proces- ("PlayBack"), Feb., 104. Discwasher Hydrobath CD Cleaning Sys- sor ("PlayBack"), May, 96. AudioQuest Big Feet Isolators ("Play- tem ("PlayBack"), March, 104. McIntosh MC 500 Amplifier and C40 Back"), Sept., 104. Elite MC-5 Mini Components ("Play- Preamplifier ("Auricle"), Jan., 122. Audio Research D300 Amplifier and LS2B Back"), April, 96. Mondial MAGIC Isolation Circuit ("Play- Mark II Preamplifier ("Auricle"), Elite PD-F109 100-Disc CD Changer Back"), Feb., 104. Jan., 108. ("PlayBack"), Nov., 120. Motorola Power Series Cellular Modem Audio Research VT150SE Mono Amplifi- ESX Entertainment's The Ultimate Test ("PlayBack"), May, 96. er, LS5 MKII Preamplifier, and BL2 In- CD ("Auricle"), Jan., 134. Museatex Bidat D/A Converter, Nov., 66. terface ("Auricle"), May, 66. Fine Line Audio FL3D-100 Passive Sur- My Disc Sheffield/A2TB Test Disc ("Auri- Audio Research DAC3 D/A Converter and round Decoder ("PlayBack"), Dec., cle"), Nov., 86. CDT1 CD Transport ("Auricle"), June, 68. 120. Nakamichi 1000 Car Stereo System, June, 40. Audio-Technica ATH-P5 Portable Head- Fisher PCD-60 Portable CD Player (CD Nakamichi Dragon CD Changer and Dragon phones ("PlayBack"), June, 104. Players on the Go), April, 22. DAC D/A Converter, Nov., 48. Audio-Technica AT882 Stereo Micro- Gold Line DSP-30 Portable Real-Time N.E.A.R. 10m Loudspeaker ("PlayBack"), phone ("PlayBack"), Nov., 120. Analyzer ("Auricle"), May, 74. Sept., 104. Bag End D10E ELF Subwoofer and ELF- Grado Labs SR125 Earphones, Aug., 54. Newport Classic Binaural CD: Saint- M Integrator, Feb., 72. Hafler P1500 Amplifier ("PlayBack"), Saens's Symphony No. 3, "Organ," and B & K Components AVP1000 A/V Tuner/ June, 104. Richard Strauss's "Also Sprach Zara- Preamplifier ("Auricle"), June, 76. Headroom Supreme Headphone Amp and thustra" ("PlayBack"), Dec., 120. Boston Acoustics CR7 Loudspeaker, Image Processor ("Auricle"), Jan., 118. OmniMount Systems 53 RST-UMK and Sept., 48. Infinity IRS Epsilon Loudspeaker ("Auri- 53 RWX-UMK Universal Loudspeaker- Boulder 102 Amplifier and L5 Preamplifier, cle"), April, 60. Mounting Kits ("PlayBack"), Nov., 119. Sept., 38. JBL SoundEffects A/V Loudspeaker Sys- Onkyo DX-F71p Portable CD Player (Five B & W Matrix 805 Loudspeaker and tem ("PlayBack"), Jan., 168. CD Portables), Sept., 24. 800ASW Powered Subwoofer, Sept., 62. Jensen DF511 Car Stereo, April, 36. Optimus PRO LX5 Loudspeaker, April, 48. Cambridge Soundworks by Henry Kloss JMlab Spectral 913.1 Loudspeaker, Nov., 56. Optimus CD-3420 Portable CD Player Loudspeaker System ("Auricle"), JVC XM-D1BK MiniDisc Recorder, (Five CD Portables), Sept., 24. March, 80. March, 66. Panasonic SL-S490 Portable CD Player Carver Research Lightstar Reference Ampli- George Kaye Audio Labs Small-Signal (Five CD Portables), Sept., 24. fier, July, 68. Tube Checker ("PlayBack"), Aug., 96. Paradigm Eclipse/BP Loudspeaker, Aug., 48. Cary Audio Design CAD-805 Mono Ampli- Kenwood DP-M7750 CD Changer, Jan., 90. Parasound D/AC-1000 D/A Converter fier, July, 54. Kenwood KDC-PS900 Car Stereo, May, 50. and C/DP-1000 CD Player/Transport, Chesky's Best of Chesky Classics & Jazz KLH V-01 Rear-Channel Loudspeaker, March, 58. and Audiophile Test Disc, Volume 3 March, 72. Phase Technology PC 10.5 Loudspeaker, ("PlayBack"), Feb., 104. Klipsch CF 3 Loudspeaker, July, 62. May, 56. Classe Audio CA-400 Amplifier ("Auri- Krell Reference KPE MC Phono Stage Pioneer Elite MC-5 Mini Components cle"), Dec., 68. ("Auricle"), Feb., 78. ("PlayBack"), April, 96. Counterpoint NPS-400A Amplifier, Krell KPS-20i CD Player ("Auricle"), Pioneer DEH-P815 Car Stereo, July, 48. Dec., 34. Sept., 76. Pioneer Elite PD-F109 100-Disc CD Creative Labs Sound Blaster AWE32 Legacy High-Current Amplifier, April, 42. Changer ("PlayBack"), Nov., 120. Computer Sound Board (Computer Mark Levinson No. 30.5 D/A Converter Polk Audio M5, CS250S, M3II, and Sound Boards), Nov., 34. and No. 31 CD Transport ("Auricle"), PSW200 A/V Loudspeakers ("Auri- Dana Audio Model 1 Loudspeaker, March, 76. cle"), July, 72. Feb., 52. Linaeum LFX Loudspeaker ("Auricle"), PS Audio Ultralink Two D/A Converter Delos Surround Spectacular CD Set July, 75. ("Auricle"), April, 56. ("PlayBack"), Sept., 104. Luxman M-383 Amplifier and C-383 Pre- Quicksilver GLA Amplifier ("Auricle"), Denon AVR-2500 A/V Surround Receiver amplifier, Jan., 96. May, 70. ("PlayBack"), Jan., 167. Mackie MicroSeries 1202 Portable Mixer Radio Shack Digital Sound-Level Meter Denon DCT-950 Car Stereo, May, 44. ("PlayBack"), Jan., 167. ("PlayBack"), July, 96. Denon AVC-2800 A/V Surround Ampli- Magnavox AZ6848/17 Portable CD Player Recoton W500 Wireless Headphone Sys- fier, Dec., 44. (Five CD Portables), Sept., 24. tem ("PlayBack"), July, 96. DGX Audio DDP-1 Digital Preamplifier Marantz Slim Series Components ("Play- Renaissance Endeavors' Rejoice Christmas ("PlayBack"), March, 104. Back"), Jan., 168. CD ("PlayBack"), Jan., 168. AUDIO/DECEMBER 1995 117 RoomTune Deluxe Room-Treatment Pan- LISTENING & LISTENING ROOMS els ("Auricle"), July, 78. 20,000-Watt Hi-Fi Gets Digital EQ, RoomTune Justarack Equipment Rack Richard S.Burwen, April, 28. ("PlayBack"), Nov., 120. Totem Acoustic Rokk Loudspeaker, June, 60. Roll Your Own Subwoofer: Foundations for Sanus Systems Ultimate Foundations Turtle Beach Monterey Computer Sound Sound, John Sehring, July, 34. Loudspeaker Stands ("PlayBack"), Board (Computer Sound Boards), Nov., Surround Speakers: Confusion, Diffusion, Aug., 96. 34. and Resolution, Tomlinson Holman, July, Sanyo CDP-55 Portable CD Player (CD VAC PA160 Mono Amplifier, Aug., 62 40 (Addendum, Nov., 18). Players on the Go), April, 22. (Addendum, Oct., 20). Setting Up Speakers for A/V Systems: How Sennheiser IS 850 Digital Infrared Ear- Vandersteen 3A Loudspeaker ("Auricle"), to Get the Best Sound for Movies and phone System, May, 64. June, 72. Music, Anthony H. Cordesman, Dec., 20. Sennheiser HDC451 Noise-Cancelling Yamaha KX-580 Cassette Deck, June, 52. Earphones, Dec., 52. Z-Systems z-link+ Digital Sampling-Rate LOUDSPEAKERS Sheffield Lab's The Sheffield/Caustic Test Converter ("PlayBack"), Aug., 96. Mondo Audio (interview with Stan Kelly), and Demonstration Disc and The Ken Kessler, Jan., 20. Sheffield/XLO Test & Burn-in CD ("Au- HISTORY Mondo Audio (interview with Peter Walk- ricle"), Jan., 134. Mondo Audio (interview with Stan Kelly), er), Ken Kessler, Feb., 18. Sheffield Lab's My Disc A2TB Test Disc Ken Kessler, Jan., 20. Waveform Phase, D. B. Keele, Jr., April, 53. ("Auricle"), Nov., 86. Mondo Audio (interview with Peter Walk- Car Audio: Get Your Head Into It, Richard Snell Type A Music Reference Loudspeak- er), Ken Kessler, Feb., 18. Clark and David Navone, May, 38. er System ("Auricle"), April, 64. Spectrum (16th anniversary of the Sony Understanding Speaker Crossovers: Zobels Sonic Frontiers SFD-2 D/A Converter, Walkman), Ivan Berger, July, 20. and All That, Hank Zumbahlen, June, 32. Jan., 82. The Audio Interview: Raymond Cooke, Ken Roll Your Own Subwoofer: Foundations for Sonic Frontiers Ultrajitterbug Jitter Re- Kessler, Aug., 26. Sound, John Sehring, July, 34. ducer ("Auricle"), Aug., 68. Who Really Invented Radio?, B. Eric Surround Speakers: Confusion, Diffusion, Sony DTC-2000ES DAT Recorder ("Auri- Rhoads, Dec., 26. and Resolution, Tomlinson Holman, July, cle"), Jan., 128. 40 (Addendum, Nov., 18). Sony TC-K615S Cassette Deck ("Play- HOME THEATER & The Audio Interview: Raymond Cooke, Ken Back"), May, 96. SURROUND SOUND Kessler, Aug., 26. Sony D-335 Portable CD Player (Five CD Surround Speakers: Confusion, Diffusion, Setting Up Speakers for A/V Systems: How Portables), Sept., 24. and Resolution, Tomlinson Holman, July, to Get the Best Sound for Movies and Sony ES MDS-JA3ES MiniDisc Recorder, 40 (Addendum, Nov., 18). Music, Anthony H. Cordesman, Dec., 20. Dec., 58. RCA's Digital Satellite System: A Gourmet Soundwave Point Source 3.0 Loudspeaker, Dish or a Pot of Trouble?, Anthony H. MEASUREMENT TECHNIQUES Jan., 50. Cordesman and James Harper, Aug., 32. CD Players on the Go, Edward M. Long, Spica TC-60 Loudspeaker ("Auricle"), Currents (Dolby AC-3), John Eargle, April, 22. Jan., 112. Nov., 26. Waveform Phase, D. B. Keele, Jr., April, 53. Stax SR-Omega Earspeakers and SRM- Setting Up Speakers for A/V Systems: How Tuners in Transit: How Blaupunkt Road- 71S Drive Amplifier, Feb., 60. to Get the Best Sound for Movies and Tests Radios, Mike Stosich, May, 34. Stereophile TestCD2 ("Auricle"), Jan., 134. Music, Anthony H. Cordesman, De- Car Audio: Get Your Head Into It, Richard Storadisc Library Series CD Storage Unit cember, 20. Clark and David Navone, May, 38. ("PlayBack"), Dec., 120. Understanding Speaker Crossovers: Zobels Sumiko SHO Reference Phono Cartridge INTERVIEWS and All That, Hank Zumbahlen, June, 32. ("Auricle"), Dec., 78. Stan Kelly ("Mondo Audio"), Ken Kessler, Roll Your Own Subwoofer: Foundations for Sutherland A-1000 Mono Amplifier ("Au- Jan., 20. Sound, John Sehring, July, 34. ricle"), June, 104. Tim de Paravicini, Bruce Bartlett with Jen- Five CD Portables: Digital Memories for TDL Studio 1m Loudspeaker ("Auricle"), ny Bartlett, Jan., 38. Road or Track, Edward M. Long, Sept., 24. Aug., 70. Peter Walker ("Mondo Audio"), Ken The Promise and Problems of Computer Technics SA-GX770 A/V Receiver, Kessler, Feb., 18. Sound Boards, Bascom H. King, Nov., 34. Jan., 73. Rykodisc Executives (Joe Boyd, Robert Si- Terk AM-FM Q Active Antenna ("Play- monds, Arthur Mann, and Don Rose), MUSIC PERFORMANCE & Back"), Jan., 167. Michael Bieber and Michael Tearson, RECORDING Theta Digital DS Pro Generation V D/A March, 42. The Audio Interview: Rykodisc Executives, Converter ("Auricle"), Feb., 82. Raymond Cooke, Ken Kessler, Aug., 26. Michael Bieber and Michael Tearson, Thiel CS5i Loudspeaker ("PlayBack"), Chesky Records Executives (David Chesky, March, 42. March, 104. Miguel Kertsman, Steve Guttenberg, and Lured by Louisiana: The New Orleans Jazz Thiel CS7 Loudspeaker ("Auricle"), Aug., 58. Bob Katz), John Gatski, Sept., 32. and Heritage Festival, David Gahr, Threshold T400 Amplifier, Aug., 44. Rudy Van Gelder, James Rozzi, Nov., 42. June, 26. AUDIO/DECEMBER 1995 118 20,000-Watt Hi-Fi Gets Digital EQ, Richard S. Burwen, April, 28. Spectrum (decay of master tapes), Barry The Audio Interview: Chesky Records Exec- Fox, July, 22. utives, John Gatski, Sept., 32. The Audio Interview: Chesky Records Exec- The Audio Interview: Rudy Van Gelder, utives, John Gatski, Sept., 32. James Rozzi, Nov., 42. The Audio Interview: Rudy Van Gelder, James Rozzi, Nov., 42. OBITUARIES William H. Thomas, July, 20. REISSUED RECORDINGS Raymond Cooke, Aug., 30. Currents (Vanguard Classics' CD reissues Dr. Marvin Camras, Oct., 18. of Everest stereo catalog), John Eargle, Jan., 16 and Feb., 14. RADIO BROADCAST & Currents (EMI Classics' CD reissues of RECEPTION Full Dimensional Sound LPs), John Tuners in Transit: How Blaupunkt Road- Eargle, July, 16. Tests Radios, Mike Stosich, May, 34. Roadsigns (RDS and ID Logic), Ivan Berger, TAPE July, 28. Spectrum (decay of master tapes), Barry Who Really Invented Radio?, B. Eric Fox, July, 22. Rhoads, Dec., 26. VIDEODISCS RECORDING Currents (CD Interactive), John Eargle, The Audio Interview: Tim de Paravicini, March, 14. Bruce Bartlett with Jenny Bartlett, Jan., 38. Currents (Digital VideoDisc), John Eargle, The Audio Interview: Rykodisc Executives, May, 16. Michael Bieber and Michael Tearson, Currents (Dolby AC-3), John Eargle, March, 42. Nov., 26.

AUDIO/DECEMBER 1995 119 Mondo Audio (bad computer audio), Ken 162; Blank Tapes & Discs, 162; Equalizers, Kessler, Sept., 42. 164; Surround Sound & Ambience Proces- sors, 166; Signal Processors, 174; Crossovers, DIGITAL TECHNOLOGY & 164; Speaker Cables, 182; Loudspeakers, 194; TECHNIQUES Company Addresses, 337. The Trouble with Jitter, Ken C. Pohlmann, Jan., Annual Equipment Directory Addenda, No- ACOUSTICS 26. vember Spectrum (Bose Modeler and Auditioner com- Fast Fore-Word (DVD), Michael Riggs, March, 6. Analog Interconnects, 82; Digital Intercon- puter programs for designing a building's Currents (RCA Digital Satellite System), John nects, 94. acoustics), Ivan Berger, March, 20. Eargle, March, 24. Noise Shaping: 19 Bits in a 16-Bit Sack?, D. W. EMERGING TECHNOLOGIES ADDENDA Fostle, March, 32 (Addendum, May, 7). Fast Fore- Word (DVD), Michael Riggs, March, 6. Who Really Invented Radio?, (Dec. 1995, 26), Fast Fore-Word (HDCD), Michael Riggs, April, 4. Spectrum (Bose Modeler and Auditioner com- March, 8. Spectrum (DVD buzz), Ivan Berger, April, 20. puter programs for designing a building's Equipment Profile: JoLida SJ 302A Integrated Digital Deliverance: Noise Shaping, HDCD, acoustics), Ivan Berger, March, 20. Amplifier (March, 70), April, 6. and Other Alternatives, D. W. Fostle, April, Spectrum (DVD buzz), Ivan Berger, April, 20. Equipment Profile: EAD (Enlightened Audio 26. Fast Fore-Word (copy protection of new digital Designs) TheaterMaster Dolby Digital (AC- Mondo Audio (Audio Alchemy Enhanced Dig- formats), Michael Riggs, June, 6. 3) Surround Processor (March, 42), April, ital Resolution System), Ken Kessler, May, Spectrum (DVD update), Ivan Berger, June, 30. 6. 24. Spectrum (Delos Virtual Reality Recording Noise Shaping: 19 Bits in a 16-Bit Sack? Spectrum (Delos Virtual Reality Recording surround CDs), Edward M. Long, June, 32. (March, 32), May, 7. surround CDs), Edward M. Long, June, 32. Front Row (predictions on DVD's success or Auricle: NuReality Vivid 3D Theater SRS Proc- Currents (DVD delay), John Eargle, Sept., 32. failure), Corey Greenberg, July, 26. essor (April, 74), June, 14. Currents (Sony Direct Stream Digital record- Currents (DVD delay), John Eargie, Sept., 32. ing), John Eargle, Oct., 32. Front Row (computer industry meddling with AMPLIFIERS DSP in Audio: The Promise, Reality, and Future hi-fi), Corey Greenberg, Sept., 38. Mondo Audio (single-ended triode amplifiers), of Digital Signal Processing, Ken Kantor, Currents (Sony Direct Stream Digital record- Ken Kessler, Oct., 40. Dec., 26. ing), John Eargle, Oct., 32. Pure Power: Amplifier Design & Sound Quality, Tomlinson Holman, Nov., 26. DVD EQUIPMENT PROFILES Fast Fore-Word, Michael Riggs, March, 6. Acoustic Research 312 HO Loudspeaker, Dec., CAR STEREO Spectrum (DVD buzz), Ivan Berger, April, 20. 60. Spectrum (developments at Winter CES), Ivan Fast Fore-Word (copy protection), Michael AKG Acoustics K 290 Surround Headphones Berger, May, 20. Riggs, June, 6. ("PlayBack"), Aug., 96. Spectrum (system design and installation), Spectrum (DVD update), Ivan Berger, June, 30. Allsop StrongBox CD Box ("PlayBack"), May, Ivan Berger, Aug., 32. Front Row (predictions on success or failure), 96. Corey Greenberg, July, 26. AMC AV81HT Preamplifier/Surround Proces- COMPUTERS AND AUDIO Currents (DVD delay), John Eargle, Sept., 32. sor ("Auricle"), Jan., 72. Spectrum (Bose Modeler and Auditioner com- Angstrom 200 A/V Preamplifier/Processor puter programs for designing a building's DIRECTORIES ("Auricle"), Feb., 66. acoustics), Ivan Berger, March, 20. Annual Equipment Directory, October Apollo CKD Speaker Stands ("PlayBack"), Spectrum (difficulties adding multimedia to a Introduction, 49; CD Players & Transports, Sept., 104. PC), Ivan Berger, July, 25. 52; D/A Converters, 64; Amplifiers, 71; Pre- Aragon 8008ST Amplifier, June, 46. Mondo Audio (audiophile Web sites), Ken amplifiers, 110; Tuners, 136; Receivers, 137; Atlantic Technology System 250.1 Home The- Kessler, July, 32. Turntables, 142; Tonearms, 144; Phono Car- ater Speakers ("Auricle"), Dec., 78. Front Row (computer industry meddling with tridges, 146; Headphones, 150; Analog Cas- Audio Advisor ELFIX AC Polarity Tester hi-fi), Corey Greenberg, Sept., 38. sette Decks, 158; Digital Player/Recorders, ("PlayBack"), April, 96.

AUDIO/DECEMBER 1996 124 Audio Alchemy DTI-Pro 32 Digital Interface Harman Kardon Citation 7.0 A/V Preamplifi- Pass Laboratories Aleph 1 Mono Amplifier ("Auricle"), July, 68. er/Processor, April, 36. ("Auricle"), Feb., 72. Audio Alchemy HPA v1.0 Headphone Ampli- Infinity Compositions P-FR Loudspeaker, Pass Laboratories Aleph-P Preamplifier, Nov., fier ("PlayBack"), Dec., 128. March, 52. 60. Audio By Van Alstine Qmega III 440hc Ampli- Jamo SW 505E Powered Subwoofer, July, 60. Philips Key Modules IS 5021 Digital Signal fier and FET Valve EC Preamplifier ("Play- JBL HT Series THX Loudspeakers, Jan., 66. Processor, Aug., 58. Back"), April, 96. Jensen RA 2040CLX Car Amplifier ("Play- Pioneer Elite PDR-99 CD Recorder, Feb., 36. AudioQuest 7000Fe5 Phono Cartridge ("Play- Back"), Sept., 104. Platinum Audio Duo Loudspeaker, May, 54. Back"), June, 96. JoLida SJ 302A Integrated Amplifier, March, Polk Audio Signature Reference Theater AudioSource Project One Loudspeaker 70 (Addendum, April, 6). Speaker System ("Auricle"), Sept., 80. ("PlayBack"), July, 96. KEF Reference Series Model Four Loudspeak- PS Audio Lambda Two CD Transport and SL Audio-Technica AT-ML150 Phono Cartridge er, June, 50. Three D/A Converter ("Auricle"), June, 60. ("PlayBack"), Jan., 128. Kimber Kable Speaker Cables ("PlayBack"), Salamander Designs Archetype Modular Audix Nile X Loudspeaker ("PlayBack"), June, Nov., 120. Shelving ("PlayBack"), Feb., 96. 96. Lamm Audio Laboratory L1 Preamplifier Sennheiser HD 580 Precision Earphones, Bir6 t2c Digital Interface ("PlayBack"), Nov., ("PlayBack"), March, 96. June, 56. 120. Lexicon DC-1/THX A/V Preamplifier/Proc- Shure V15VxMR Phono Cartridge ("Play- Bryston 4B ST Amplifier, Feb., 46. essor, May, 42. Back"), Dec., 128. B&W 803 Matrix Series 2 Loudspeaker ("Play- Lexicon 412 Four-Channel Amplifier, Dec., Sonance DL1200 Powered Subwoofer, Sept., Back"), Feb., 96. 70. 76. Carver AV-705x Five-Channel Amplifier, MacTec EZ-CD CD Opener ("PlayBack"), Sonic Frontiers Power-3 Mono Amplifier, Sept., 64. Aug., 96. Aug., 64. Case Logic CDV-12 CD Visor ("PlayBack"), Marantz SM-5 Amplifier and SC-5 Preampli- Sony CDP-XA7ES CD Player, March, 62. Dec., 128. fier, Jan., 56. Soundwave VR-3.5 Loudspeaker ("Auricle"), Castle Acoustics Isis Loudspeaker ("Play- Marantz SR-96 A/V Receiver, Aug., 48. Aug., 72. Back"), Nov., 120. Marantz DP870 Dolby Digital (AC-3) Sur- Spatializer HTMS-2510 Stereo-Image Proces- Classe Audio CP-60 Preamplifier ("Auricle"), round Decoder, Nov., 52. sor ("Auricle"), June, 66. May, 66. Martin-Logan SL3 Loudspeaker ("Auricle"), Spectron 1KW Switching Amplifier, July, 64. conrad-johnson MF2300-A Amplifier ("Auri- Jan., 81. SRD Speakerworks VM-1 Center-Channel cle"), March, 74. McIntosh MCD7009 CD Player, Jan., 41. Speaker ("PlayBack"), Sept., 104. Continuum 4-3-2 Four-Channel Amplifier, Meridian 565 Digital Surround Processor Staedtler Erasable Cassette Labels ("Play- Aug., 54. ("Auricle"), Sept., 84. Back"), Jan., 128. Creek Audio OBH-11 Headphone Amplifier Mesa Engineering Baron Amplifier, Dec., 50. Tascam DA-P1 Portable DAT Recorder ("Play- ("PlayBack"), July, 96. Mirage MBS-2 Satellites, BPSS-210 Sub- Back"), July, 96. Digital Phase AP-2.1 Loudspeaker, Nov., 42. woofer, and LFX-2 Crossover, Sept., 70. Technics SE-A1000 Amplifier and SU-C1000 Dynaclear Postman Wrench ("PlayBack"), Mission 735 Loudspeaker, Jan., 46. Preamplifier, May, 62. May, 96. Muse Electronics Model Two D/A Converter Technics SA-TX50 Home THX Receiver, Dec., Dynaco CDV-1 CD Player, Feb., 56. ("Auricle"), Jan., 84. 40. Dynaco Stereo-80 Amplifier ("PlayBack"), NHT SuperOne Loudspeaker ("Auricle"), Tekna Sonic C-5 and C-10 Vibration Ab- May, 96. Aug., 68. sorbers ("PlayBack"), March, 96. EAD TheaterMaster Dolby Digital (AC-3) NHT VT-1A A/V Loudspeaker ("PlayBack"), Theta Digital Data III CD Transport and DS Surround Processor, March, 42 (Addendum, June, 96. Pro Generation V-a D/A Converter ("Auri- April, 6). NSM 10S Loudspeaker, April, 50. cle"), April, 70. Egglestonworks Andra Loudspeaker ("Auri- NuReality Vivid 3D Theater SRS Processor VAC Renaissance Seventy/Seventy Amplifier cle"), Feb., 62. ("Auricle"), April, 74 (Addendum, June, 14). and CPA1 Mk II Preamplifier ("Auricle"), Eosone Millennium Home Theater Speaker Onkyo TX-SV919THX Receiver ("PlayBack"), May, 68. System ("Auricle"), Nov., 70. Jan., 128. VPI TNT III Turntable with Flywheel ("Auri- Esoteric Sound Aten Turntable ("PlayBack"), Panasonic PV-4564 VHS Hi-Fi VCR ("Play- cle"), Jan., 90. March, 96. Back"), Feb., 96. VPI JMW Memorial Tonearm ("Auricle"), Galaxy Audio Cricket Polarity/Continuity Paradigm Reference Studio/100 Loudspeaker, June, 69. Tester ("PlayBack"), Aug., 96. July, 46. Wilson Audio Specialties WATT V/Puppy V Golden Sound DH Cone Feet ("PlayBack"), Paradigm Micro/SB-90 Home Theater Speak- Loudspeaker System, Feb., 50. April, 96. er System ("Auricle"), Nov., 76. Yamaha RX-V2090 A/V Receiver and DDP-1 Hafler Trans-Nova 9505 Amplifier, April, 44. Parasound P/LD-2000 Preamplifier, May, 48. Dolby Digital (AC-3) Decoder, April, 58. Hales Design Group Concept Five Loudspeak- Parasound HCA-2003 Three-Channel Ampli- Yamaha DSP-A3090 A/V Integrated Amplifier, er ("Auricle"), Dec., 86. fier, Nov., 32. July, 52.

AUDIO/DECEMBER 1996 125 HISTORY Placing the Bass: Two Subs in a Corner Beats The Audio Interview: Arnie Nudell, David Lan- Five in the Round, Tom Nousaine, June, 40. der, July, 40. Spectrum (B&W's Prism speaker enclosure), Fast Fore-Word (audiophile recordings of re- Ivan Berger, July, 24. producing pianos), Michael Riggs, Sept., 6. The Audio Interview: Arnie Nudell, David Lan- Mondo Audio (vintage audio gear), Ken der, July, 40. Kessler, Nov., 22. Tuning Up for Surround Sound: Tips on Getting Mondo Audio (vintage and reissued audio the Room Right, Thomas R. Horrall, Aug., 40. gear), Ken Kessler, Dec., 22. MISCELLANEOUS HOME THEATER & Spectrum (Elcom and Terk Technologies mul- SURROUND SOUND tiroom A/V distribution systems), Ivan Fast Fore-Word (surround sound for music), Berger, April, 25. Michael Riggs, Feb., 4. Mondo Audio (newsletters from audio manu- Multichannel Music Recording: A View from facturers), Ken Kessler, Aug., 38. the Console, Daniel Sweeney, Feb., 20. The Audio Interview: M&K's Ken Kreisel, OBITUARY Daniel Levitin, Feb., 28. Peter W. Mitchell, May, 22. Currents (RCA Digital Satellite System), John Eargle, March, 24. PSYCHOACOUSTICS Spectrum (Delos Virtual Reality Recording Noise Shaping: 19 Bits in a 16-Bit Sack?, D. W. surround CDs), Edward M. Long, June, 32. Fostle, March, 32 (Addendum, May, 7). Placing the Bass: Two Subs in a Corner Beats Upside-Down Sound: Listening for Polarity In- Five in the Round, Tom Nousaine, June, 40. version, Edward M. Long, July, 34. Fast Fore-Word (VLS Auri headphone sur- Fast Fore-Word (VLS Auri headphone sur- round system), Michael Riggs, July, 4. round system), Michael Riggs, July, 4. Tuning Up for Surround Sound: Tips on Getting the Room Right, Thomas R. Horrall, Aug., 40. RECORDING DSP in Audio: The Promise, Reality, and Future The Audio Interview: Mobile Fidelity's Herb of Digital Signal Processing, Ken Kantor, Belkin, Ken Kessler, Jan., 32. Dec., 26. Fast Fore-Word (surround sound for music), Michael Riggs, Feb., 4. INTERVIEWS Multichannel Music Recording: A View from Herb Belkin, Ken Kessler, Jan., 32. the Console, Daniel Sweeney, Feb., 20. Ken Kreisel, Daniel Levitin, Feb., 28. Noise Shaping: 19 Bits in a 16-Bit Sack?, D. W. Mark Isham, John Diliberto, May, 36. Fostle, March, 32 (Addendum, May, 7). Arnie Nudell, David Lander, July, 40. Digital Deliverance: Noise Shaping, HDCD, Kavi Alexander, Bruce Bartlett with Jenny and Other Alternatives, D. W. Fostle, April, Bartlett, Dec., 34. 26. The Audio Interview: Mark Isham, John Dili- LISTENING & berto, May, 36. LISTENING ROOMS Spectrum (Delos Virtual Reality Recording Placing the Bass: Two Subs in a Corner Beats surround CDs), Edward M. Long, June, 32. Five in the Round, Tom Nousaine, June, 40. Mixing It Up: The Modern Art of Studio Tuning Up for Surround Sound: Tips on Get- Recording, Daniel J. Levitin, Sept., 46. ting the Room Right, Thomas R. Horrall, Currents (Sony Direct Stream Digital record- Aug., 40. ing), John Eargle, Oct., 32. DSP in Audio: The Promise, Reality, and Future The Audio Interview: Kavi Alexander, Bruce of Digital Signal Processing, Ken Kantor, Bartlett with Jenny Bartlett, Dec., 34. Dec., 26. REISSUED RECORDINGS LOUDSPEAKERS The Audio Interview: Mobile Fidelity's Herb The Audio Interview: M&K's Ken Kreisel, Belkin, Ken Kessler, Jan., 32. Daniel Levitin, Feb., 28. Front Row (Norton Records rock 'n' roll reis- More Bass in Less Space: A New Approach to sues and new releases), Corey Greenberg, Subwoofer Design, Matthew Polk, May, 28. Oct., 28. AUDIO/DECEMBER 1996 126 Spectrum (voice synthesis by computer), DIRECTORY Ivan Berger, Nov., 32. Annual Equipment Directory, October Introduction, 65; CD & DVD Players, 68; DVD D/A Converters, 80; Amplifiers, 85; Pream- Fast Fore-Word (Audio Engineering Society plifiers, 127; Tuners, 143; Receivers, 144; ADDENDA convention), Michael Riggs, Feb., 6. Turntables, 150; Tonearms, 152; Phono Equipment Profile: Marantz DP870 Dolby DVD Unraveled, Edward J. Foster, April, 30. Cartridges, 153; Headphones, 157; Cassette Digital Surround Decoder (Nov. 1996, 52), Mondo Audio (premature launch of DVD), Decks, 163; Digital Player/Recorders, 164; Jan., 12. Ken Kessler, June, 26. Blank Tapes & Discs, 165; Equalizers, 167; Equipment Profile: Pass Laboratories Aleph- Front Row (DVD's growing pains), Corey Surround Sound & Ambience Processors, P Preamplifier (Nov. 1996, 60), Jan., 12. Greenberg, July, 32. 168; Signal Processors, 176; Crossovers, Equipment Profile: Manley Laboratories Ref- The Big Squeeze: The Theory and Practice of 179; Speaker Cables, 181; Loudspeakers, erence D/A Converter (Jan., 72), April, 8. Dolby Digital, Mark F. Davis, July, 36. 193; Company Addresses, 319. Equipment Profile: Digital Phase AP-2.1 Fast Fore-Word (DVD authoring), Michael Loudspeaker (Nov. 1996, 42), April, 58. Riggs, Aug., 6. EMERGING TECHNOLOGIES Auricle: Paradigm Reference Active/20 Pow- Understanding MPEG-2: How They Get All Mondo Audio (Verity Group's flat-panel ered Loudspeaker (Sept., 86), Nov., 13. That Video on Those Little Discs, Edward J. NXT speaker technology), Ken Kessler, Foster, Sept., 36. Feb., 24. ANNIVERSARY OF AUDIO MAGAZINE Fast Fore-Word (Divx versus DVD), Mi- Spectrum (data buses in car systems), Ivan Fast Fore-Word (reflections on Audio's ori- chael Riggs, Nov., 8. Berger, March, 16. gins), Michael Riggs, May, 8. Fast Fore-Word (multichannel music on CD Fast Fore-Word (Directed Stick Radiator Through the Looking Glass (vintage ads), and DVD), Michael Riggs, Dec., 8. loudspeaker), Michael Riggs, Aug., 6. Michael Riggs, May, 103. Currents (multichannel recording for CD Spectrum (using digital technology to im- and DVD), John Eargle, Dec, 28. prove dynamic range), Ivan Berger, Aug., 20. CABLES & CONNECTORS Mondo Audio (Audio Virtual Standard's "3- Mondo Audio (standardizing speaker con- DIGITAL TECHNOLOGY & D" audio system), Ken Kessler, Sept., 30. nectors), Ken Kessler, April, 26. TECHNIQUES Cyber Stereo: Audio Over the Internet, Gor- Fast Fore-Word (cables for home theater), Spectrum (Sony TCD-D7 portable DAT don Brockhouse, Sept., 46. Michael Riggs, July, 6. recorder and JVC GR-DV1 digital cam- Spectrum (voice synthesis by computer), corder), Ivan Berger, Jan., 27. Ivan Berger, Nov., 32. CAR STEREO Fast Fore-Word (Audio Engineering Society You Say You Want a Revolution: Speaker De- Spectrum (Blaupunkt's "5 Series" head convention), Michael Riggs, Feb., 6. signers Have a Few To Offer You, Ivan Ber- units), Ivan Berger, Jan., 26. Spectrum (record companies and copyright ger, Nov., 47. Spectrum (Mercedes/Bose car systems), protection), Ivan Berger, April, 25. Fast Fore-Word (multichannel music on CD Ivan Berger, March, 16. DVD Unraveled, Edward J. Foster, April, 30. and DVD), Michael Riggs, Dec., 8. Spectrum (innovations in head units), Ivan Spectrum (Pioneer CT-W616DR cassette Currents (multichannel recording for CD Berger, July, 20. deck with Digital Processing System), Ian and DVD), John Eargle, Dec., 28. Spectrum (innovations in speaker drivers), G. Masters, May, 32. Ivan Berger, Aug., 18. The Future of Stereo, Floyd E. Toole, Part I, EQUIPMENT REVIEWS Spectrum (RDS-equipped head units), Ivan May, 126; Part II, June, 34. ADS MS3/U Powered Subwoofer ("Boom Berger, Oct., 34. The Big Squeeze: The Theory and Practice of for the Buck"), Jan., 36. Spectrum (making speaker drivers more Dolby Digital, Mark F. Davis, July, 36. AKG K501 Earphones, July, 64. rugged), Ivan Berger, Oct., 36. Spectrum (using digital technology to im- Adcom GFA-5802 Amplifier and GFP-750 prove dynamic range), Ivan Berger, Aug., 20. Preamplifier ("Auricle"), Dec., 90. COMPUTERS AND AUDIO Understanding MPEG-2: How They Get All Anthem Pre-1 Preamplifier, April, 52. Cyber Stereo: Audio Over the Internet, Gor- That Video on Those Little Discs, Edward J. Apogee Acoustics Slant 6 Loudspeaker don Brockhouse, Sept., 46. Foster, Sept., 36. ("Auricle"), April, 66.

AUDIO/DECEMBER 1997 123 Audio Alchemy DDS-Pro CD Transport Krell Audio+Video Standard Preamp/Sur- Per Madsen RackIt System 19 Equipment and DDE v3.0 D/A Converter ("Auricle"), round Processor ("Auricle"), Dec., 102. Rack ("PlayBack"), March, 96. Jan., 88. Legacy Audio High Current Preamplifier Pioneer Elite DVL-90 DVD/Laserdisc Play- Audio by Van Alstine FET-Valve Topp D/A ("PlayBack"), Nov., 124. er, April, 42. Converter ("PlayBack"), March, 96. Mark Levinson No. 31.5 CD Transport Pioneer DEH-P835R Car Stereo ("Spec- AudioControl SA-3052 Portable Real-Time ("Auricle"), May, 172. trum"), Sept., 24. Analyzer ("PlayBack"), Nov., 124. Liberty Audiosuite 2.0 Computerized Meas- Polk Audio RT7 Speaker and PSW300 Pow- AudioSource Amp Three Amplifier, July, urement System, Feb., 58. ered Subwoofer, April, 46. 60. Lyle Cartridges Phono Alignment Tool Polyfusion Audio 960 Amplifier, March, 62. Ayre Acoustics K-1 Preamplifier, Dec., 82. ("PlayBack"), June, 96. Proceed CDP CD Player, June, 48. B&W 800 ASW Powered Subwoofer ("Boom M&K Sound MX-150THX Powered Sub- Proton KS-530CD Under-Cabinet Radio/ for the Buck"), Jan., 36. woofer, Feb., 50. CD Player ("PlayBack"), Sept., 112. BIC America Venturi V-604 Loudspeaker, MB Quart Domain D55 Loudspeaker, June, RCA RC5200P DVD Player ("Auricle"), March, 46. 64. March, 66. Bag End S18E-O Powered Subwoofer Manley Laboratories Reference D/A Con- REL Stentor II Powered Subwoofer ("Auri- ("Boom for the Buck"), Jan., 36. verter, Jan., 72 (Addendum, April, 8). cle"), April, 64. Boston Acoustics VR2000 Powered Sub- Marantz CD-17 CD Player, Feb., 54. Radio Shack VoiceMemo Digital Recorder woofer, Jan., 54. Marantz Model 7 Preamplifier and Model 9 ("PlayBack"), April, 96. California Audio Labs CL-5 CD Changer, Mono Amplifier ("Auricle"), June, 72. Rane SSE 35 Home Theater Equalizer ("Play- March, 52. Marantz SR-880 A/V Receiver, Nov., 72. Back"), Jan., 112. Cambridge SoundWorks Tower Loud- Monster Cable RF Splitters ("PlayBack"), Recoton W410 Portable Outdoor/Indoor speaker ("Auricle"), Jan., 80. Feb., 96. Speaker ("PlayBack"), Oct., 330. Carver A-760x Amplifier, May, 164. Monster Cable Light Speed 100 Toslink Rogue Audio Sixty-Six Preamplifier ("Play- Celestion A3 Loudspeaker, Aug., 48. Digital Interconnect ("PlayBack"), July, Back"), Dec., 128. Classe Audio CDP-.5 CD Player and CAP- 96. Rotel RR-990 Remote Control ("Play- 100 Integrated Amplifier, July, 54. Monster Cable System Polarity Analyzer Back"), July, 96. Coincident Speaker Technology Digital ("PlayBack"), Oct., 330. Rotel RSP-980 A/V Preamp/Processor and Master Loudspeaker ("Auricle"), Feb., 72. Musical Fidelity X-DAC D/A Converter, RDA-980 Dolby Digital Decoder, Aug., 42. Denon AVR-5600 A/V Receiver, March, 34. June, 58. Scheib CD DiscDividers ("PlayBack"), Jan., Denon DVD-2000 DVD Player, Nov., 88. Musical Fidelity X-CANS Headphone Am- 112. Dodson Audio DA-217 D/A Converter plifier ("PlayBack"), Nov., 124. Snell Acoustics RCS 1000 Room-Correc- ("PlayBack"), Jan., 112. NAD 512 CD Player and 314 Integrated tion System ("Auricle"), Nov., 96. Dynaclear Tweeter Lens Anti-Diffraction Amplifier ("Auricle"), Feb., 66. Sonic Frontiers Line 3 Preamplifier, Sept., Rings ("PlayBack"), Feb., 96. NAD 118 Digital Preamplifier, Aug., 62. 78. Elcom Technologies ezAUDIO Multiroom N.E.A.R. 15M Loudspeaker, June, 52. Sonus Faber Concerto Loudspeaker ("Front Extender ("PlayBack"), April, 96. NHT 2.9 Loudspeaker ("Auricle"), Dec., Row"), June, 30. Genesis Technologies Genesis V Loud- 96. Sony DTC-ZA5ES DAT Recorder, Jan., 62. speaker ("Auricle"), Feb., 64. Nakamichi IA-1z A/V Integrated Amplifier, Sony DVP-S7000 DVD Player, May, 144. Genesis Technologies Digital Lens Anti-Jit- Dec., 58. Sony SDP-EP9ES Dolby Digital Surround ter Device ("Auricle"), Aug., 74. Onkyo Integra A-9911 Integrated Amplifier Processor, July, 42. Grado Laboratories SR40 Headphone ("Play- ("PlayBack"), Aug., 96. Sony MDM-X4 Multitrack MiniDisc Re- Bark"), Aug., 96. Optimus Pro LX 10 Loudspeaker ("Play- corder ("PlayBack"), Aug., 96. Harman Kardon ADP303 Dolby Digital Back"), Dec., 128. Sony SBM-1 Super Bit Mapping A/D Con- Decoder ("Front Row"), Jan., 28. Panasonic DVD-A300 DVD Player, April, verter ("PlayBack"), Oct., 330. Houston GSP-02 Amplifier, Aug., 56. 38. Spirit Folio Notepad Eight-Input Mixer Hsu Research HRSW 12V Powered Sub- Paradigm Mini Monitor Loudspeaker ("PlayBack"), April, 96. woofer ("Boom for the Buck"), Jan., 36. ("Front Row"), June, 30. Sunfire Cinema Grand Five-Channel Am- JBL SVA1600 Loudspeaker, Dec., 72. Paradigm Reference Active/20 Powered plifier, Jan., 44. JVC FS-2000 Mini Stereo System ("Play- Loudspeaker, ("Auricle"), Sept., 86 (Ad- Sunfire True Subwoofer Mark II Powered Back"), Sept., 112. dendum, Nov., 13). Subwoofer, Nov., 64. Jamo Hi-Fi Concert 8 and Concert Center Parasound R/EQ-150 Room Equalizer Tekna Sonic C-12 Subwoofer Vibration Ab- Speakers, May, 154. ("PlayBack"), Dec., 128. sorber ("PlayBack"), July, 96. Joseph Audio RM7si Loudspeaker, July, 46. Pass Laboratories Aleph 1.2 Mono Amplifi- Theta Digital Casablanca Surround Pream- KEF RDM One Loudspeaker, Sept., 72. er ("Auricle"), July, 73. plifier ("Auricle"), April, 60. Kenwood KC-Z1 A/V Tuner/Preamp, Feb., Pass Laboratories Aleph 2 Amplifier ("Play- Thiel CS6 Loudspeaker ("Auricle"), Aug., 42. Back"), Sept., 112. 70.

AUDIO/DECEMBER 1997 124 Threshold T800D Amplifier, Nov., 80. Boston Audio Society), Michael Riggs, Spectrum (making speaker drivers more Toshiba SD-3006 DVD Player, July, 50. Sept., 8. rugged), Ivan Berger, Oct., 36. VLS Auri Headphone Surround Processor Spectrum (singles versus albums), Ivan You Say You Want a Revolution: Speaker De- ("Auricle"), July, 70. Berger, Nov., 34. signers Have a Few To Offer You, Ivan Ber- VMPS FF-3 Loudspeaker ("Auricle"), The Audio Interview: Mike McLean, D. W. ger, Nov., 47. March, 72. Fostle, Part I, Nov., 56; Part II, Dec., 50. Velodyne F-1500R Powered Subwoofer MINIDISC (MD) ("Boom for the Buck"), Jan., 36. HOME THEATER & Spectrum (status of MiniDisc), Ivan Berger, Velodyne F-1800RII Powered Subwoofer, SURROUND SOUND May, 34. March, 58. Fast Fore-Word (Subwoofers), Michael Velodyne VA-1215XII Powered Subwoofer Riggs, Jan., 8. MISCELLANEOUS ("PlayBack"), June, 96. Front Row (affordable Dolby Digital add- Mondo Audio (Musical Fidelity X-Series Wadia 27 D/A Converter ("Auricle"), April, ons), Corey Greenberg, Jan., 28. components), Ken Kessler, March, 22. 70. Front Row (Home THX certification), Spectrum (personal stereos and hearing Westlake Audio Lc 8.1 Loudspeaker ("Play- Corey Greenberg, March, 20. damage), Ivan Berger, April, 24. Back"), June, 96. The Future of Stereo, Floyd E. Toole, Part I, Mondo Audio (mainstream press's disre- Wheaton Triplanar Ultimate Tonearm ("Play- May, 126; Part II, June, 34. spect for audiophiles), Ken Kessler, May, Back"), Feb., 96. The Big Squeeze: The Theory and Practice of 38. Whirlwind Cable Tester ("PlayBack"), Dolby Digital, Mark F. Davis, July, 36. Front Row (rediscovering 8-track), Corey March, 96. Spectrum (Spatializer "3-D" Stereo in Greenberg, May, 40. Yamaha RX-V2092 A/V Receiver, Sept., 54. Toshiba SD-3107 DVD player), Ivan Berg- Fast Fore-Word (online misinformation and er, Nov., 30. grumpy audiophiles), Michael Riggs, HISTORY June, 6. Fast Fore-Word (reflections on Audio's ori- INTERVIEWS Spectrum (using equalizers), Ivan Berger, gins), Michael Riggs, May, 8. Peter McGrath, David Lander, Feb., 36. July, 24. Spectrum (PCM turns 50), Ivan Berger, Sandy Berlin, David Lander, Aug., 36. Fast Fore-Word (simplifying audio compo- May, 32. Mike McLean, D. W. Fostle, Part I, Nov., 56; nents and connections), Michael Riggs, Glorious Beginnings: A Golden Anniversary Part II, Dec, 50. Oct., 8. Celebration of Audio's Earliest Years, David Mondo Audio (audio globalization), Ken Lander, May, 45. LISTENING & LISTENING ROOMS Kessler, Oct., 38. Audio Milestones: The March of Technology, Flying Blind: The Case Against Long-Term Front Row (three-month dealer tour), Ivan Berger, May, 59. Listening, Tom Nousaine, March, 26. Corey Greenberg, Oct., 44. 50 Years and More of Record Playing, Joseph The Future of Stereo, Floyd E. Toole, Part I, Mondo Audio (challenges faced by British Grado, May, 60. May, 126; Part II, June, 34. dealers), Ken Kessler, Nov., 36. 50 Years of Amplifiers, Bascom H. King, May, The Science of Listening, Ian G. Masters, Mondo Audio (industry gossiping), Ken 71. Dec., 40. Kessler, Dec., 34. 50 Years of Home Recording, Robert Long, May, 76. LOUDSPEAKERS MULTICHANNEL AUDIO 50 Years of Loudspeakers, Ken Kantor, May, Fast Fore-Word (Subwoofers), Michael The Future of Stereo, Floyd E. Toole, Part I, 85. Riggs, Jan., 8. May, 126; Part II, June, 34. 50 Years of Follies—Ideas That Didn't Fly, Boom for the Buck: How Much Woof Does a The Big Squeeze: The Theory and Practice of Robert Long, May, 95. Sub Buck Buy?, Tom Nousaine, Jan., 36. Dolby Digital, Mark F. Davis, July, 36. Through the Looking Glass (vintage ads), Mondo Audio (Verity Group's flat-panel Mondo Audio (Audio Virtual Standard's "3- Michael Riggs, May, 103. NXT speaker technology), Ken Kessler, D" audio system), Ken Kessler, Sept., 30. The Future of Stereo, Floyd E. Toole, Part I, Feb., 24. Fast Fore-Word (multichannel music on CD May, 126; Part II, June, 34. Crossing Over: The Misunderstood World of and DVD), Michael Riggs, Dec., 8. Spectrum (remembering mono), Ivan Berg- Cutoffs, Slopes, and Response Shaping, Ken Currents (multichannel recording for CD er, June, 20. Kantor, Feb., 30. and DVD), John Eargle, Dec., 28. Mondo Audio (EMI's 100th anniversary The Future of Stereo, Part I, Floyd E. Toole, commemorative reissues), Ken Kessler, May, 126. PSYCHOACOUSTICS July, 28. Fast Fore-Word (Directed Stick Radiator Flying Blind: The Case Against Long-Term Spectrum (collecting classic transistor ra- loudspeaker), Michael Riggs, Aug., 6. Listening, Tom Nousaine, March, 26. dios), David Lander, Aug., 23. Spectrum (innovations in car speaker driv- The Future of Stereo, Floyd E. Toole, Part I, The Audio Interview: Sandy Berlin, David ers), Ivan Berger, Aug., 18. May, 126; Part II, June, 34. Lander, Aug., 36. Speaker Design: From the Outside In, Karen The Big Squeeze: The Theory and Practice of Fast Fore-Word (25th anniversary of the Winner, Aug., 32. Dolby Digital, Mark F. Davis, July, 36.

AUDIO/DECEMBER 1997 125 The Science of Listening, Ian G. Masters, Dec., 40.

RADIO BROADCAST & RECEPTION Spectrum (innovations in car head units), Ivan Berger, July, 20. Spectrum (RDS-equipped car head units), Ivan Berger, Oct., 34.

RECORDING Spectrum (Sony TCD-D7 portable DAT recorder and JVC GR-DV1 digital cam- corder), Ivan Berger, Jan., 27. The Audio Interview: Peter McGrath, David Lander, Feb., 36. Spectrum (Pioneer CT-W616DR cassette deck with Digital Processing System), Ian G. Masters, May, 32. Dorian Live, David Lander, June, 40. Front Row (Sonic Studios DSM-6S stereo microphones), Corey Greenberg, Aug., 28. The Audio Interview: Mike McLean, D. W. Fostle, Part I, Nov., 56; Part II, Dec., 50.

REISSUED RECORDINGS Buried Treasure: Sony Classical's Master- works Heritage Reissue Series, Alan Lofft, March, 32. Mondo Audio (EMI's 100th anniversary commemorative reissues), Ken Kessler, July, 28. Front Row (Eddie Kramer's MCA Jimi Hen- drix remasters), Corey Greenberg, Nov., 40.

THEATER SOUND Spectrum (giant-screen "3-D" and Binaural surround sound at IMAX theaters), John Sunier, Oct., 32.

AUDIO/DECEMBER 1997 126 Front Row (Event Electronics Gina sound Digital Radio, Today and Tomorrow, John card), Corey Greenberg, Dec., 20. Gatski, Jan., 32. Setting Up a Home Studio, Ken Kessler, Dec., DMX By Satellite: A User Report, Ian G. 27. Masters, Jan., 34. Fast Fore-Word (advancements in digital ACOUSTICS CONSTRUCTION PROJECTS signal processing), Michael Riggs, Feb., 4. Birth of the Boom: Room Acoustics at Low Front Row (shielding a turntable and phono Living with CD-R: A User's Guide to CD Frequencies, Tom Nousaine, June, 32. cartridge with mu-metal), Corey Green- Recording, Robert Long, Feb., 24. berg, July, 22. Fast Fore-Word (DVD-Audio update), ADDENDA Michael Riggs, March, 6. Equipment Profile: Infinity Compositions DVD Digital Audio for the Future, J. Robert Stu- Overture 3 Speaker (Feb., 42), June, 8. Currents (Super Audio CD and Direct art, Part 1, March, 30; Part 2, April, 30. Equipment Profile: Z-Systems RDP-1 Digital Stream Digital), John Eargle, Jan., 20. Fast Fore-Word (digital radio standards; Preamplifier (April, 64), June, 9. Fast Fore-Word (DVD-Audio update), digital home recording), Michael Riggs, Equipment Profile: Paradigm Reference Michael Riggs, March, 6. April, 4. Servo-15 Powered Subwoofer (April, 68), Spectrum (Hide & Seek Technologies time- Fast Fore-Word (96-kHz/24-bit recordings), Aug., 6. limited and play-limited discs), Ivan Berg- Michael Riggs, July, 4. er, March, 20. 96/24: Digital Heaven or Digital Hell?, Bob AMPLIFIERS Digital Audio for the Future, J. Robert Stu- Katz (Digital Heaven), July, 26; Ken Kan- Spectrum (amplifier power ratings), Ivan art, Part 1, March, 30; Part 2, April, 30. tor (Digital Hell), July, 27. Berger, July, 16. Fast Fore-Word (DVD-Audio versus Super 96/24 on DVD: First Impressions of the 96- Mondo Audio (Nagra MPA amplifier), Ken Audio CD), Michael Riggs, May, 4. kHz/24-Bit Stereo Music DVDs from Kessler, Aug., 16. The Softer Side of DVD: Movies on DVD, Chesky and Classic Records, Anthony H. Rad Bennett, May, 28. Cordesman, July, 32. BOOK REVIEWS Fast Fore-Word (copy protection; Divx), Fast Fore-Word (compressed versus uncom- The Home Theater Companion by Howard Michael Riggs, June, 4. pressed digital), Michael Riggs, Oct., 8. Ferstler ("Fast Fore-Word"), Aug., 4. 96/24: Digital Heaven or Digital Hell?, Bob Hot-Wiring Your Hi-Fi: How the IEEE-1394 Sound for Film and Television by Tomlinson Katz (Digital Heaven), July, 26; Ken Kan- Digital Interface Will Change Your Life, Holman ("Fast Fore-Word"), Aug., 4. tor (Digital Hell), July, 27. Mark Bridgwater, Nov., 28. The Search for Musical Ecstasy by Harvey 96/24 on DVD: First Impressions of the 96- Rosenberg ("Fast Fore-Word"), Aug., 4. kHz/24-Bit Stereo Music DVDs from DIRECTORY Chesky and Classic Records, Anthony H. Annual Equipment Directory, October CD-R Cordesman, July, 32. Introduction, 33; CD & DVD Players, 36; Living with CD-R: A User's Guide to CD THX Meets DVD, Edward J. Foster, Aug., 24. D/A Converters, 50; Amplifiers, 58; Pre- Recording, Robert Long, Feb., 24. Front Row (NetFlix online DVD rental ser- amplifiers, 92; Tuners, 108; Receivers, 110; Spectrum (collecting music royalties on dig- vice), Corey Greenberg, Oct., 28. Turntables, 116; Tonearms, 118; Phono ital recording media), Ivan Berger, July, 18. Fast Fore-Word (DTS and DVD-Audio), Cartridges, 120; Headphones, 124; Cas- Michael Riggs, Dec., 4. sette Decks, 130; Digital Player/Recorders, CAR STEREO 132; Equalizers, 134; Surround Sound & Spectrum (coping with road noise; identify- DIGITAL TECHNOLOGY & Ambience Processors, 136; Signal Proces- ing radio stations), Ivan Berger, April, 16. TECHNIQUES sors, 144; Crossovers, 146; Speaker Cables, Spectrum (amplifier power ratings), Ivan Currents (Super Audio CD and Direct 148; Loudspeakers, 160; Company Ad- Berger, July, 16. Stream Digital), John Eargle, Jan., 20. dresses, 286. Mondo Audio (Z-Systems RDP-1 digital COMPUTERS AND AUDIO preamplifier), Ken Kessler, Jan., 24. EMERGING TECHNOLOGIES Spectrum (MP3 audio compression stand- Front Row (AES Convention, fall 1997), Currents (Super Audio CD and Direct ard), Stephan Somogyi, Nov., 20. Corey Greenberg, Jan., 28. Stream Digital), John Eargle, Jan., 20.

AUDIO/DECEMBER 1998 99 Fast Fore-Word (DVD-Audio versus Super Classe Audio CAP-80 Integrated Amplifier Lamm Audio Laboratory M2.1 Mono Am- Audio CD), Michael Riggs, May, 4. and CDP.3 CD Player, Aug., 48. plifier, May, 54. Fast Fore-Word (96-kHz/24-bit recordings), Clearaudio Signature Phono Cartridge Legacy Audio Classic Speaker ("Auricle"), Michael Riggs, July, 4. ("PlayBack"), Sept., 104. Aug., 64. 96/24: Digital Heaven or Digital Hell?, Bob dCS Elgar 96-kHz/24-Bit D/A Converter Lexicon DC-1 5.1-Channel A/V Preamp/ Katz (Digital Heaven), July, 26; Ken Kan- ("Auricle"), July, 54. Processor ("Auricle"), June, 60. tor (Digital Hell), July, 27. Delos DVD Music Breakthrough Dolby Dig- Linn Classik CD Player/Integrated Amp 96/24 on DVD: First Impressions of the 96- ital DVD ("PlayBack"), Oct., 298. ("Auricle"), Dec., 77. kHz/24-Bit Stereo Music DVDs from Denon DMD-1000 MiniDisc Recorder, Lovan Sovereign Hi-Fi Equipment Racks Chesky and Classic Records, Anthony H. Dec., 45. ("PlayBack"), May, 88. Cordesman, July, 32. Dunlavy Audio Labs SC-III Speaker, July, 50. M&K MX-700 Powered Subwoofer, Nov., 40. Spectrum (DNA assembly of electronic cir- EAD (Englightened Audio Designs) The- MB Quart QP 805 Headphones ("Play- cuits), Ivan Berger, Sept., 20. aterMaster Encore and Ovation A/V Pre- Back"), March, 96. Up Against the Wall: NXT's New Approach amps, Nov., 52. MIT iconn Speaker Connectors ("Play- to Panel Speakers, Henry Azima, Sept., 34. Energy Tempest Outdoor Speaker ("Seven Back"), Jan., 104. Spectrum (MP3 audio compression stand- Outdoor Speakers"), Sept., 42. Mackie Designs HR824 Powered Speaker ard), Stephan Somogyi, Nov., 20. Energy Take 5 Home Theater Speaker Sys- ("PlayBack"), Sept., 104. Hot-Wiring Your Hi-Fi: How the IEEE-1394 tem ("Auricle"), Sept., 80. Marantz MA-700 Mono Amplifier, March, 64. Digital Interface Will Change Your Life, Ergo AMT Headphones ("Auricle"), Dec., Martin-Logan reQuest Speaker ("Auricle"), Mark Bridgwater, Nov., 28. 72. Jan., 86. FMR Audio Really Nice Compressor Martin-Logan CLS IIz Speaker ("Auricle"), EQUIPMENT REVIEWS ("Front Row"), Sept., 28. Sept., 82. ATI (Amplifier Technologies, Inc.) AT1505 Fostex COP-1 Digital Signal Converter Meridian 508.24 CD Player, Feb., 36. Five-Channel Amplifier, March, 54. ("PlayBack"), April, 96. Meridian 861 Digital Surround Preamp Adcom The Ball Remote-Controlled Home FurnitureWorks 300AH Speaker Stands ("Auricle"), Nov., 80. Theater System ("Auricle"), May, 60. ("PlayBack"), Sept., 104. Mission 750 Limited Edition Speaker, Aug., Arcam Alpha 9 Integrated Amplifier, Jan., Genesis 300 Speaker ("Auricle"), Feb., 72. 54. 54. GRAAFiti VT5.35 Five-Channel Amplifier Monsoon Multimedia MM-1000 Comput- Audio Research VT-200 Amplifier and REF ("Auricle"), Nov., 84. er Speaker ("PlayBack"), Nov., 104. 1 Preamplifier ("Auricle"), March, 70. Grado Reference Platinum Phono Car- Musical Fidelity X-Tone Tone Control Audio Research VT50 Amplifier ("Auri- tridge ("PlayBack"), Feb., 96. ("Auricle"), March, 76. cle"), Aug., 60. Grado SR325 Headphones ("PlayBack"), NHT NewWave Home Theater Speakers Audiolab 8000S Integrated Amplifier June, 88. ("PlayBack"), July, 88. ("Front Row"), March, 26. Grundig G-2000A AM/FM Short-Wave Ra- Nagra PL-P Preamplifier ("Mondo Au- AudioQuest PT-6 Tonearm and VPI Aries dio ("PlayBack"), Feb., 96. dio"), Feb., 20. Truntable ("Auricle"), May, 66. Hsu Research TN 1220 HO Subwoofer, Naim Audio Headline Headphone Amplifi- B & K Components AVP1030 A/V Tuner/ Aug., 44. er ("PlayBack"), July, 88. Preamp, Feb., 54. Infinity Compositions Overture 3 Speaker, Niles Audio OS-20 Outdoor Speaker ("Sev- BDI Ventura Audio+Video Equipment Feb., 42 (Addendum, June, 8). en Outdoor Speakers"), Sept., 42. Rack ("PlayBack"), Dec., 104, Infinity Compositions Overture 1 Speaker Onkyo DV-S501 DVD Player, Dec., 61. Basis Audio 2000 Turntable ("Auricle"), and Compositions CC-3 Center-Channel Optimus PRO-LS3 Outdoor Speaker ("Sev- June, 68. Speaker, Feb., 47. en Outdoor Speakers"), Sept., 42. BayGen Freeplay FPR2S AM/FM Portable JBL Harmony Radio/CD Player ("Play- PSB Stratus Goldi Speaker, Jan., 62. Radio ("PlayBack"), Dec., 104. Back"), June, 88. PSB Alpha Mini, Mite, Midi, A/V, and Sub- Bel Canto Design SET 40 Amplifier, Nov., JBL HLS610 Speaker ("Auricle"), Nov., 74. sonic 1 Speakers ("Front Row"), June, 28. 46. JVC XV-D2000BK DVD Player, March, 48. Panasonic DVD-A310 DVD Player, May, 36. Bell'Oggetti SSP-12A Surround Speaker Jadis DPL2 Preamplifier ("Auricle"), Sept., 86. Panasonic DVD-L10 Portable DVD Player Stands ("PlayBack"), June, 88. Jolida SJ-801A Integrated Amplifier, Jan., 70. ("PlayBack"), July, 88. Boston Acoustics Voyager Outdoor Speaker Klipsch KSF 10.5 Speaker, April, 52. Paradigm Reference Servo-15 Powered ("Seven Outdoor Speakers"), Sept., 42. Kora Electronic Concept Triode 100 SB Subwoofer, April, 68 (Addendum, Aug., 6). Bryston B-60 Integrated Amplifier, March, Mono Amplifier and Eclipse Preamplifier, Pass Laboratories Aleph Ono Phono Pre- 58. Nov., 68. amp ("PlayBack"), Jan., 104. Carver DD-5.1 Dolby Digital Preamp/ Koss Quiet Zone 2000 Headphones ("Play- Philips DVX8000 Multimedia Home Processor ("PlayBack"), Oct., 298. Back"), April, 96. Theater Controller ("Auricle"), Feb., 68. Cinepro 3k6SE Six-Channel Amplifier Krell KAV-500 Multichannel Amplifier Philips CDR 870 CD-R/RW Recorder, ("Auricle"), Jan., 82. ("Auricle"), July, 58. April, 58.

AUDIO/DECEMBER 1998 100 Philips Magnavox DVD420 DVD Player Thiel CS7.2 Speaker ("Auricle"), Dec., Fast Fore-Word (compressed versus uncom- ("PlayBack"), May, 88. 67. pressed digital), Michael Riggs, Oct., 8. Pioneer PDR-04 CD Recorder, Jan., 48. Tribute GroundGuard RF Ground-Loop Front Row (NetFlix online DVD rental ser- Pioneer Elite VSX-09TX A/V Receiver, May, Eliminator ("PlayBack"), Jan., 104. vice), Corey Greenberg, Oct., 28. 44. Unison Research Power 35 Amplifier and Pioneer Elite DV-09 DVD Player, Aug., 36. Feather One Preamplifier ("Auricle"), INTERVIEWS Polk Audio RT-2000p Speaker ("Auricle"), July, 62. John Fogerty, Daniel Levitin, Jan., 38. May, 63. VMPS Super Tower III Special Ribbon Edi- Bill Jasper of Dolby Labs, David Lander, Feb., Polk Audio AW/M5 Outdoor Speaker tion Speaker ("Auricle"), Aug., 66. 30. ("Seven Outdoor Speakers"), Sept., 42. VPI Aries Turntable and AudioQuest PT-6 Richard Fryer of Spectral Audio, David Lan- Pro Digital SDIOC Portable DAT Coaxial Tonearm ("Auricle"), May, 66. der, March, 40. In/Out Cable ("PlayBack"), April, 96. Velodyne HGS-12 Powered Subwoofer, Steve Hoffman of Dunhill Compact Classics Quicksilver Audio V4 Mono Amplifier, June, 44. ("Front Row"), Corey Greenberg, April, 24. Feb., 50. Vienna Acoustics Beethoven Mk. II, Mo- Dan D'Agostino of Krell, Steve Guttenberg, RCA DRD515 Dolby Digital DSS Receiver zart, and Maestro Speakers ("Auricle"), April, 40. ("PlayBack"), Nov., 104. April, 76. Michael Kay of Lyric Hi-Fi, David Lander, Rock Solid Sounds Solid Monitor Outdoor Wharfedale Modus Monitor MFM-5 June, 38. Speaker ("Seven Outdoor Speakers"), Speaker, June, 56. Andy Kotsatos of Boston Acoustics, David Sept., 42. Yamaha DSP-A1 A/V Amplifier, July, 36. Lander, Aug., 28. Rocktron HTD1 Circle Surround 5.2.5 De- Yamaha DVD-S700 DVD Player, Sept., 58. David & Becky Starobin of Bridge Records, coder ("Auricle"), July, 64. Z-Systems RDP-1 Digital Preamplifier, David Lander, Nov., 34. Rocktron CSA12 Car Audio Circle Sur- April, 64 (Addendum, June, 9). Bill Dudleston of Legacy Audio, Tom Nou- round Decoder ("Auricle"), July, 66. Zefiro InBox Mike Preamp/ADC ("Play- saine, Dec., 34. Rogue Audio Eighty-Eight Amplifier Back"), Aug., 88. ("PlayBack"), Aug., 88. LISTENING & LISTENING ROOMS Sennheiser HD 600 Earphones, Jan., 76. HEADPHONES Birth of the Boom: Room Acoustics at Low Sherbourn Technologies 5/1500 Five-Chan- Spectrum (headphone stereos for hospital Frequencies, Tom Nousaine, June, 32. nel Amplifier, Dec., 51. patients), Ivan Berger, Oct., 22. Silverline SR 12 Speaker ("PlayBack"), Oct., LOUDSPEAKERS 298. HISTORY Front Row (AES Convention, fall 1997), Snell E.5 Speaker, Sept., 50. Front Row (interview with Steve Hoffman Corey Greenberg, Jan., 28. Sonance EC300 Outdoor Speaker ("Seven of DCC), Corey Greenberg, April, 24. Mondo Audio (transatlantic speakers), Ken Outdoor Speakers"), Sept., 42. Resurrection: The Restoration of the New Kessler, May, 24. Sonic Frontiers Processor 3 D/A Converter, York Philharmonic's Historic Broadcast Spectrum (Sunfire True Subwoofer), Ivan July, 46. Recordings, Susan Elliott, April, 46. Berger, June, 18. Sonus Faber Solo Center-Channel Speaker The Audio Interview: Michael Kay of Lyric Mondo Audio (Wharfedale WXT-04 NXT ("Front Row"), March, 26. Hi-Fi, David Lander, June, 38. flat-panel speaker), Ken Kessler, Aug., 16. Sony D-465 Portable CD Player ("Play- The Audio Interview: Andy Kotsatos of The Audio Interview: Andy Kotstatos of Back"), Feb., 96. Boston Acoustics, David Lander, Aug., 28. Boston Acoustics, David Lander, Aug., 28. Sony DVP-S500D DVD Player, June, 50. Fast Fore-Word (Harman International's Sony AN-LP1 Short-Wave Active Antenna HOME STUDIO speaker design and test lab; NXT's flat- ("PlayBack") Aug., 88. Fast Fore-Word (digital technology and panel speaker technology), Michael Riggs, Sony MDR-F1 Earphones, Sept., 76. home recording), Michael Riggs, April, 4. Sept., 6. Sony PCM-M1 Portable DAT Recorder Front Row (proliferation of project stu- Up Against the Wall: NXT's New Approach ("PlayBack"), Nov., 104. dios), Corey Greenberg, Aug., 20. to Panel Speakers, Henry Azima, Sept., 34. SyQuest SyJet Portable Hard Drive ("Play- Front Row (compression; FMR Audio Real- Listening By the Yard: Seven Outdoor Speak- Back"), Dec., 104. ly Nice Compressor), Corey Greenberg, ers, Ivan Berger, Sept., 42. TDK CD-RXG 74-Minute Recordable CD Sept., 28. Mondo Audio (Ruark Solstice and Mor- ("PlayBack"), March, 96. Front Row (Event Electronics Gina sound daunt-Short 800 series speakers), Ken TDL RTL 1 Speaker, Feb., 64. card), Corey Greenberg, Dec., 20. Kessler, Oct., 24. Teac V-8030S Cassette Deck ("PlayBack"), Setting Up a Home Studio, Ken Kantor, The Audio Interview: Bill Dudleston of Lega- May, 88. Dec., 27. cy Audio, Tom Nousaine, Dec., 34. Terk Technologies FM Pro FM-50 FM An- tenna ("PlayBack"), March, 96. HOME THEATER & SURROUND MINIDISC (MD) Theta Digital Miles CD Player ("Auricle"), THX Meets DVD, Edward J. Foster, Aug., Spectrum (collecting music royalties on dig- April, 72. 24. ital recording media), Ivan Berger, July, 18.

AUDIO/DECEMBER 1998 101 MISCELLANEOUS RECORDING Mondo Audio (TAG McLaren's entry in- Front Row (AES Convention, fall 1997), to high-end audio), Ken Kessler, March, Corey Greenberg, Jan., 28. 22. Living with CD-R: A User's Guide to CD Spectrum (McIntosh assembly line), Ivan Recording, Robert Long, Feb., 24. Berger, May, 18. Fast Fore-Word (copy protection), Michael Spectrum (Pipedown's campaign against Riggs, June, 4. background music in public spaces), Spectrum (the future of home recording), Nigel Rodgers, Oct., 20. Ivan Berger, July, 17. Spectrum (inventor Jacob Rabinow), Ivan Spectrum (collecting music royalties on dig- Berger, Oct., 23. ital recording media), Ivan Berger, July, 18. MULTICHANNEL AUDIO Front Row (proliferation of project stu- Currents (Super Audio CD and Direct dios), Corey Greenberg, Aug., 20. Stream Digital), John Eargle, Jan., 20. Front Row (compression; FMR Audio Real- Front Row (AES Convention, fall 1997), ly Nice Compressor), Corey Greenberg, Corey Greenberg, Jan., 28. Sept., 28. Fast Fore-Word (DVD-Audio update), Front Row (Event Electronics Gina sound Michael Riggs, March, 6. card), Corey Greenberg, Dec., 20. Digital Audio for the Future, J. Robert Stu- Setting Up a Home Studio, Ken Kessler, Dec., art, Part 1, March, 30; Part 2, April, 30. 27. Fast Fore-Word (DVD-Audio versus Super Audio CD), Michael Riggs, May, 4. REISSUED RECORDINGS Fast Fore-Word (compressed versus uncom- Elvis: 24 Karat Hits! (interview with Steve pressed digital), Michael Riggs, Oct., 8. Hoffman of Dunhill Compact Classics in Fast Fore-Word (DTS and DVD-Audio), "Front Row"), Corey Greenberg, April, Michael Riggs, Dec., 4. 24.

MUSIC PERFORMANCE & RECORDING REMOTE CONTROL The Audio Interview: John Fogerty, Daniel Fast Fore-Word (user-configurable re- Levitin, Jan., 38. motes), Michael Riggs, Nov., 6. Resurrection: The Restoration of the New York Philharmonic's Historic Broadcast SHOWS & CONFERENCES Recordings, Susan Elliott, April, 46. Funkaustellung, Berlin consumer electron- Mondo Audio (Eurovision Song Contest), ics show ("Fast Fore-Word"), Michael Ken Kessler, July, 22. Riggs, Jan., 6. The Audio Interview: David & Becky AES Convention, fall 1997 ("Front Row"), Starobin of Bridge Records, David Lander, Corey Greenberg, Jan., 28. Nov., 34. Consumer Electronics Show, Jan. 1998 ("Mondo Audio"), Ken Kessler, April, 20. OBITUARY Frankfurt High End '98 ("Mondo Audio"), Edward Tatnall Canby, May, 22. Ken Kessler, Sept., 24. Hi-Fi Show at Heathrow Airport, London PSYCHOACOUSTICS ("Mondo Audio"), Ken Kessler, Dec., 16. Digital Audio for the Future, J. Robert Stu- art, Part 1, March, 30; Part 2, April, 30. Spectrum (music processing in the brain), Ivan Berger, July, 17.

RADIO BROADCAST & RECEPTION Digital Radio, Today and Tomorrow, John Gatski, Jan., 32. DMX By Satellite: A User Report, Ian G. Masters, Jan., 34. Fast Fore-Word (digital radio standards), Michael Riggs, April, 4.

AUDIO/DECEMBER 1998 102 MP3: What Does It Really Sound Like?, Cor- Cartridges, 109; Headphones, 114; Cas- ey Greenberg, June, 30. sette Decks, 118; Digital Player/Recorders, Spectrum (computer speakers), Ivan Berger, 120; Equalizers, 123; Surround Sound & Dec., 21. Ambience Processors, 124; Signal Proces- sors, 130; Crossovers, 132; Speaker Cables, AC POWER & ELECTRICAL NOISE CONSTRUCTION PROJECTS 134; Loudspeakers, 146; Company Ad- Dedicated Listening Room Power, Anthony Monster Bass: Do-It-Yourself Subwoofers, dresses, 260. H. Cordesman, Jan., 87. Tom Nousaine, Jan., 36. Spectrum (reducing wasted power), Ivan EMERGING TECHNOLOGIES Berger, March, 15. DVD Fast Fore-Word (Parametric Acoustic Mod- Spectrum (Tributaries GroundGuard hum Spectrum (James Taylor live on DVD), Alan eling speaker design), Michael Riggs, suppressor), Ivan Berger, March, 15. Lofft, Jan., 22. March, 6. The Ultimate Cable Upgrade: An Obsessive's Fast Fore-Word (DVD-Audio update), Mi- Spectrum (blue lasers), Ivan Berger, April, Guide, Ken Kessler, Dec., 30. chael Riggs, May, 4. 19. Spectrum (DVD recorders), Ivan Berger, Deep Thoughts on Shallow Speakers, Ivan ACOUSTICS June, 23. Berger, April, 37. Bass vs. Space: Room Acoustics and Good DVD-Audio Gets the Green Light, Edward J. Spectrum (IEEE-1394 bus), Ivan Berger, Sound, David J. Weinberg and Howard W. Foster, Sept., 30. May, 19. Ferstler, July/August, 28. Convergence Gets Convincing: The Synergy DIGITAL TECHNOLOGY & of Home Theater and Home Computing, AMPLIFIERS TECHNIQUES Ivan Berger, May, 39. Spectrum (testing amplifiers), Ivan Berger, Front Row (DSP and home studio record- Spectrum (IEEE-1394 vs. USB 2.0), Ivan Feb., 18. ing), Corey Greenberg, Jan., 33. Berger, July/August, 21. The Audio Interview: Bob Carver of Sunfire, Fast Fore-Word (digital recording and fre- Spectrum (songs by cellular), Ivan Berger, Ivan Berger, Feb., 40. quency response), Michael Riggs, Feb., 6. Sept., 29. Spectrum (Kenwood K-Stat output transis- Front Row (the art of remastering), Corey Spectrum (new microphone designs), Ben P. tors), Ivan Berger, March, 15. Greenberg, Feb., 27. Stein, Nov., 27. Mondo Audio (classic component reissues), Home Recording for the Digital Millennium, Ken Kessler, July/August, 23. Daniel Kumin, Feb., 32. EQUIPMENT REVIEWS Spectrum (IEEE-1394 bus), Ivan Berger, ADA Cinema Reference A/V Preamp, CABLES & CONNECTORS May, 19. July/August, 45. Spectrum (Tributaries GroundGuard hum Spectrum (IEEE-1394 vs. USB 2.0), Ivan Acurus DIA 150 Integrated Amplifier, Sept., suppressor), Ivan Berger, March, 16. Berger, July/August, 21. 36. The Ultimate Cable Upgrade: An Obsessive's DVD-Audio Gets the Green Light, Edward J. Adcom GCD-750 CD Player, March, 66. Guide, Ken Kessler, Dec., 30. Foster, Sept., 30. Anthem MCA 5 Five-Channel Power Super Audio CD: Evolutionary or Revolu- Amplifier, Sept., 101. CAR STEREO tionary?, Edward J. Foster, Nov., 40. Arcam Alpha 9 CD Player, April, 59. Spectrum (surround sound in cars), Ivan Arcam Alpha 9C Preamplifier, July/August, Berger, June, 21. DIRECTORY 64. Annual Equipment Directory, October AudioControl C-101SE Equalizer/Analyzer, COMPUTERS & AUDIO Introduction, 29; CD & DVD Players, 32; June, 48. Convergence Gets Convincing: The Synergy D/A Converters, 48; Amplifiers, 52; Pre- Audio Refinement Complete Integrated of Home Theater and Home Computing, amplifiers, 80; Tuners, 100; Receivers, 102; Amplifier, April, 55. Ivan Berger, May, 39. Turntables, 106; Tonearms, 108; Phono B&W Nautilus 802 Speaker, Feb., 51.

AUDIO/DECEMBER 1999 107 B&W WP1 Indoor/Outdoor Speaker ("Play- Lexicon DC-2 A/V Preamp, Dec., 79. Back"), July/August, 88. Linn Genki CD Player, Dec., 53. B&W DM605 S2 Speaker, Sept., 41. MSB Technology Link D/A Converter, Feb., Bag End MM-8H Satellites and Infrasub-18 75. Powered Subwoofer, Jan., 59. MSB Technology Digital Director Jitter Blaupunkt Alaska Car CD Receiver, May, Reducer ("PlayBack"), July/August, 88. 63. Mackie HR824 Powered Speaker, Sept., 86. Bryston 9B-ST Five-Channel Power Ampli- Marantz DR700 CD Recorder, Jan., 51. fier, June, 58. Marantz RC2000 Mk. II Remote ("Front Cambridge SoundWorks Model 88 Table Row"), March, 23. Radio ("PlayBack"), Jan., 108. Marantz PM-17 Integrated Amplifier, Sept., Cambridge SoundWorks Desktop Theater 82 (Addendum, Nov., 13). 5.1 ("PlayBack"), March, 88. Meridian 557 Amplifier, March, 57. Castle Severn 2 Speaker, Dec., 91. Meridian M33 Powered Satellites and M- Cinepro Professional PowerPro 20 Line 1500 Powered Subwoofer, Sept., 76. Conditioner, Jan., 86. Meridian 561 Surround Preamp, Nov., 49. Coincident Speaker Technology Triumph Mirage OM-8 Speaker, July/August, 55. Signature Speaker, July/August, 51. Mirage MRM-1 Speaker, Nov., 105. conrad-johnson Premier 12 Mono Amplifi- Mission 774 Speaker, July/August, 40. er and Premier 16LS Preamplifier, June, Monster Cable M1000sv S-Video Intercon- 63. nect ("PlayBack"), June, 88. Creek 4330SE Integrated Amplifier, Feb., Musical Fidelity X-A200 Mono Amplifier, 77. Jan., 83. DeHavilland Aries SE Mono Amplifier Musical Fidelity X-Ray CD Player ("Play- ("PlayBack"), April, 88. Back"), Feb., 96. Denon AVR-3300 A/V Receiver, Nov., 76. Myryad T-40 Integrated Amplifier, June, 70. Dunlavy Audio Labs SC-V Speaker, March, NAD S200 Amplifier and S100 Preamplifi- 69. er, July/August, 35. E.A.R. V20 Tube Integrated Amplifier, Jan., NAD C340 Integrated Amplifier, Dec., 73. 71. NHTPro A-20 Speaker System, Nov., 91. Eminent Technology LFT-11 Computer Neutrik Minirator MR1 Portable Audio Sub/Sat System ("PlayBack"), May, 88. Generator ("PlayBack"), Feb., 96. Fostex CR-200 CD Recorder ("PlayBack"), Onkyo Phantom Cinema Virtual Surround March, 88. System ("PlayBack"), April, 88. Grado Labs Reference Phono Cartridge PSB Stratus Silveri Speaker, Dec., 61. ("PlayBack"), April, 88. Paradigm Atom Speaker ("Front Row"), Grado Reference RA-1 Headphone Ampli- April, 27. fier, Nov., 82. Pass Laboratories D1 D/A Converter Hales Design Group Transcendence Eight ("PlayBack"), Feb., 96. Speaker, July/August, 68. Pass Laboratories X600 Mono Amplifier, Harman/Microsoft Take Control Remote July/August, 59. ("Front Row"), March, 23. Philips DVD855AT DVD Player, April, 49. Hsu Research VTF-2 Powered Subwoofer, Philips Pronto Remote Control ("Play- Nov., 59. Back"), June, 88. JMlab Cobalt 820 Speaker, March, 49. Platinum Audio Studio 2 Speaker, May, 58. Jolida JD 301A Integrated Amplifier ("Play- Polk Audio RT5000 Multichannel Speaker Back"), May, 88. System, April, 68. Kenwood VR-2090 A/V Receiver, Feb., 59. Polk Audio Signature Reference Surround Krell KPS 25s CD Player/Preamp, Jan., 79. Speaker ("PlayBack"), July/August, 88. Krell KAV-300r Receiver, Sept., 71. Polk Audio RMDS-1 Home Theater Sys- Legacy Audio Studio Speaker ("PlayBack"), tem, Dec., 45. June, 88. Proceed AVP A/V Preamp and AMP 5 Five- Mark Levinson No. 360S D/A Converter, Channel Amp, April, 64. June, 66. Quicksilver Audio Silver 60 Mono Amplifi- Lexicon MC-1 A/V Preamp, Sept., 63. er, Feb., 69.

108 AUDIO/DECEMBER 1999 Rotel RP-955 Turntable ("PlayBack"), Jan., The Audio Interview: Laurie Fincham of 108. THX, David Lander, March, 34. Rotel RSX-965 A/V Receiver, Sept., 94. Spectrum (Dolby and THX introduce Sur- Ruark Acoustics Log-Rhythm Powered round EX), Len Schneider, April, 17. Subwoofer, Nov., 111. The Magic of Film Sound. Ian G. Masters, Sharp MD-R3 MD Recorder/CD Changer May, 30. ("PlayBack"), May, 88. Convergence Gets Convincing: The Synergy Snell Acoustics XA 90ps Speaker, June, 42. of Home Theater and Home Computing, Sonic Foundry Acoustic Mirror Recording Ivan Berger, May, 39. Software ("Front Row"), May, 27. Currents (10-channel surround sound), Sony MDM-X4 Mk II Four-Track MiniDisc John Eargle, June, 25. Recorder ("PlayBack"), Jan., 108. Spectrum (Sony Virtual Dolby Digital head- Sony TA-E9000ES A/V Preamp, March, 40. phones), Ivan Berger, Oct., 24. Sony DVP-S7700 DVD Player, June, 34. Sony SCD-1 Super Audio CD Player, Nov., INTERNET 65. Audio Site-Seeing on the Web, Gordon TacT Audio Millennium Digital Amplifier, Brockhouse, March, 28. June, 52. MP3: What Does It Really Sound Like?, Cor- Tannoy Churchill Speaker, March, 63. ey Greenberg, June, 30. Tannoy R1 Speaker, May, 73. Spectrum (copy protection for download- Theta Digital Jade CD Transport, May, 70. ing music), Ivan Berger, July/August, 19. Theta Digital DaViD DVD Transport and Spectrum (copy protection for download- Voyager DVD/Laserdisc Transport, Nov., ing music), Ivan Berger, Sept., 25. 98. Spectrum (copy protection for download- Theta Digital Casa Nova Surround Preamp, ing music), Ivan Berger, Oct., 21. Dec., 37. Thule Audio Spirit CD100 CD Player, Nov., INTERVIEWS 85. Ivor Tiefenbrun of Linn Products, Steve Gut- Toshiba SD-9000 DVD Player, Sept., 50. tenberg, Jan., 42. Vandersteen 2Ce Signature Speaker, Sept., Bob Carver of Sunfire, Ivan Berger, Feb., 40. 56. Laurie Fincham of THX, David Lander, Vienna Acoustics Mahler Speaker, Dec., 67. March, 34. Westlake Audio Surround Speaker System, Jerry VanderMarel, Bill VanderMarel, and July/August, 62. Scott Bagby of Paradigm, David Lander, Whise Profunder 320 Subwoofer, Sept., 106. April, 42. Wyetech Topaz 211A Single-Ended Tube Amplifier ("PlayBack"), March, 88 (Ad- LISTENING & LISTENING ROOMS dendum, May, 8). Fast Fore-Word (blind vs. open listening Yamaha RX-V2095 A/V Receiver, May, 43. tests), Michael Riggs, April, 6. Point/Counterpoint: Objective vs. Subjective HEADPHONES Evaluation, Steve Guttenberg and Mark Spectrum (Sony MDR-DS5000 Virtual Dol- Block, April, 30. by Digital headphones), Ivan Berger, Oct., The Ultimate Cable Upgrade: An Obsessive's 24. Guide, Ken Kessler, Dec., 30.

HOME STUDIO LOUDSPEAKERS Front Row (DSP and home studio record- Monster Bass: Do-It-Yourself Subwoofers, ing), Corey Greenberg, Jan., 33. Tom Nousaine, Jan., 36. Home Recording for the Digital Millennium, Fast Fore-Word (Parametric Acoustic Mod- Daniel Kumin, Feb., 32. eling), Michael Riggs, March, 6. Deep Thoughts on Shallow Speakers, Ivan HOME THEATER & Berger, April, 37. SURROUND SOUND The Audio Interview: Jerry VanderMarel, Bill Spectrum (Tributaries GroundGuard hum VanderMarel, and Scott Bagby of Para- suppressor), Ivan Berger, March, 16. digm, David Lander, April, 42.

AUDIO/DECEMBER 1999 109 Mondo Audio (classic component reissues), Spectrum (copy protection for download- Ken Kessler, July/August, 23. ing music), Ivan Berger, Sept., 25. Bass vs. Space: Room Acoustics and Good Spectrum (copy protection for download- Sound, David J. Weinberg and Howard W. ing music), Ivan Berger, Oct., 21. Ferstler, July/August, 28. Speaker Dispersion, Edward J. Foster, July/ REISSUED RECORDINGS August, 57. Front Row (the art of remastering), Corey Spectrum (computer speakers), Ivan Berger, Greenberg, Feb., 27. Dec., 21. Mondo Audio (audiophile CDs), Ken Kess- Speaker Design Master Class: Lessons from ler, May, 23. PSB's Paul Barton, David Lander, Dec., 24. SHOWS & CONFERENCES MEASUREMENT TECHNIQUES Mondo Audio (TOP Audio show in Milan), Spectrum (testing amplifiers), Ivan Berger, Ken Kessler, Jan., 26. Feb., 18. Spectrum (testing FM tuner quieting), Ivan TUNERS Berger, March, 17. Spectrum (testing FM tuner quieting), Ivan Speaker Design Master Class: Lessons from Berger, March, 17. PSB's Paul Barton, David Lander, Dec., 24.

MULTICHANNEL AUDIO Spectrum (James Taylor live on DVD), Alan Lofft, Jan., 22. Currents (10-channel surround sound), John Eargle, June, 25. DVD-Audio Gets the Green Light, Edward J. Foster, Sept., 30. Super Audio CD: Evolutionary or Revolu- tionary?, Edward J. Foster, Nov., 40.

MUSIC PERFORMANCE & RECORDING Spectrum (James Taylor live on DVD), Alan Lofft, Jan., 22.

OBITUARY Jon R. Sank, Jan., 24.

PSYCHOACOUSTICS Fast Fore-Word (blind vs. open listening tests), Michael Riggs, April, 6. Point/Counterpoint: Objective vs. Subjective Evaluation, Steve Guttenberg and Mark Block, April, 30. Currents (10-channel surround sound), John Eargle, June, 25.

RECORDING Fast Fore-Word (digital recording and fre- quency response), Michael Riggs, Feb., 6. Home Recording for the Digital Millennium, Daniel Kumin, Feb., 32. Spectrum (DVD recorders), Ivan Berger, June, 23. Spectrum (copy protection for download- ing music), Ivan Berger, July/August, 19.

110 AUDIO/DECEMBER 1999