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Audio-1993-04.Pdf ROOM MODES ON COMPUTE T-IE EQUIPMENT AUTHORITY APR _ 1?c'3 EASIEST TO USE TECP'ICS PF---roCIO RECC L--12 LEL;4 MOVIE STER VV 1-1Y 3 CI -AN SUP =LN\L-1N TU-680NAB TUN HALFRICE & HIGH -END IGM STUDIO 04 0 US $2.95 UK £1.95 0 270321 7 CA \J $3.50 RWIIRD-WINNING POLK CS100 AT ITS LOWEST PRICE EVER -FREE. That's right, Polk's Grand Prix* award winning center channel speak- er is yours - FREE, at participating Polkdealers! Just purchase any pair of Polk Audio loudspeakers (S4 or larger) for your front channel and any other set of Polk home or in -wall speakers for the rear. We'll complete your home theatersurround sound system by giving you the award winning CS100, a $169 value. The CS100, featuring two high definition 4.5" drivers and a dome tweeter, provides full range performance and rich detain for all on -screen ction and dialog.Its low p-ofile, uniquely angled cab!net offers unmatched flexibility for unobtrusive placement. And s nce it's magnetically shielded, it won't distort your picture. Polk's S and LS series speakers incorporate Dynamic BalanceTM, the result of years of laser research in partnership with Johns Hopkins University. Dynamic Balance significant y improves sonic performance - a difference you'll hear in your 5 channel home theater system. For the best reproduction of surround sound encoded movies and TV programs, all five speakers shouldhave closely matched sonic characteris- tics, so it makes sense to surround yourself with theexcit ng sound of Polk. But do it now - your Free CS100 is at your participating Folk dealer for only a short time - April 1 through May 31, 1993. Hurry, nothing is free forever. THE CS100 FROM THE SPEAKER SPECIALISTS OF polk the Speaker Specialists * 1800 cudio experts pick the winners of the prestigious HiFi Grand irix Awards, sponsored by AudioVideo International magazine IIFot Dealer Location 4E 906 5601 Metro Drive, Baltimore, MD 21215 USA, (410) 358-3600, In Canada call (416) 847.8888 1 cal 1.800-592-2520 EnteNo. 2on Reader Service Card ,..../ It takes time to make, music sound its absolute best, an art Mobile Fidelity Sound Lab has been perfecting for over 15 years. Beginning with the originallitalater tape. we combine our proprietary master g technologywIt-Ifie dedication, time 0 unwavering attelio detail that defitta true original. ULT1ADISC IT: The original limited edition, 24 -karat gold ............,audiophile compact disc.- I. 0.0 ........ .4,40 .. $ ,. , . *144' I . - .. / . ., * . t.,::40 4. *._f--$,,,. ,.. `.. - ...^ v : .4. 41, 4 . .. ..... 46:`: .*.41. ilk ... I . ' I* . ..- r' . " 1r.4401.41g .. 1. .,.. ...?.';s I .11 ' 4I r - -....ra-fovir:spiA...,, . , .00.11 - , 0:7". ° f .44;.. FISTER RECORDINGTM 1,11_a_z_laff_,ICH- 0.416INPL FIRSIER RECOR0,16 OPI.INfil MASTER NESORDIN6. REDO eithrriLr:(grAlfre:../iTE . Jimmy SOMETHIN' at CARNEGIE ELSE HALL CANNONBALL ADDERLEY MILES DAVIS HANK JONES SAM JONES ART BLAKEY ROBERT CRAY-STR:r., UOCD 573 NEW RELEASE NEW RELEASE NIFSTER RECORDING For a free color catalog, call 800-423-5759 APRIL 1993 VOL. 77, NO. 4 Center Channell, AUDIO page 26 " & C 1989 Lucasfilm Ltd. All Rights Reserved Je«t1ues STEREO FOR THE MOVIES: THE CENTER CHANNEL Tomlinson Holman 26 TAKING UP RESONANCE: FINDING ROOM MODES ON YOUR COMPUTER John H. Sehring . 32 equipment profiles TECHNICS RS -DC 10 DCC RECORDER Leonard Feldman 40 PARADIGM STUDIO MONITOR LOUDSPEAKERS D. B. Keele, Jr. 52 DENON TU-680NAB "SUPERRADIO" Leonard Feldman 64 auricles SOUNDSTREAM DAC 1 D/A CONVERTER Edward J. Foster 70 LIRPA INFLATABLE AUDIO REVIEWER Otto "Bob" Otto 74 Technics, page 40 Classical, rel'OrdhigS page 80 CLASSICAL 80 ROCK/POP 84 JAZZ & BLUES 88 depart/tie/as FAST FORE -WORDEugene PittsIII 6 SIGNALS & NOISE 8 AUDIOCLINICJoseph Giovanelli 10 Soundstream, AUDIO ETCEdward Tatnall Canby 12 ROADSIGNSIvan Berger 16 CURRENTSJohn Eargle 20 The Cover Equipment: Technics RS-DC10 DCC recorder The Cover Photographer: Bill Kouirinis Studio Audio Publishing, Editorial, and Advertising Offices, 1633 Broadway, New York, N.Y. 10019 Za. Bureau Subscription Inquiries, (303) 445-9330 NO30 REFERENCE DIGITAL PROCESSOR PRIDE IN THE DETAILS ... Mark Levinson' components have earned a reputation for their rugged reliability, uncompromising fit and finish and, above all, superior sanics. We at Madrigal Audio Laboratories are understandably proud of this reputation. The presence of "high technology" in our society has, for some, come to mean the absence of craftsmanship. Mass- produced look-alikes are everywhere, even in the realm of so-called high -end audio. The quality that you see and hear in a Mark Levinson component is not the result of automate mass production-rather, it is the result of painstaking atten- tion to the details of design, and of pride in the art of craftsmanship. Mark Levinson components are handcrafted in limited quantities and to exacting specifications. All who participate in their production share the feeling of pride that comes from knowing that they contribute to a product that defines quality. It is with great pride, then, that we intro- duce the Mark Levinson NQ 30 Reference Digital Processor. Five years of exhaustive research into digital audio yielded a processor worth waiting for, deserving of the Levinson marque. The NQ 30 is a true reference: it neither adds to nor subtracts from the music. It brings to your home the accuracy as well as the essence of the performance. Finally, the promise of digital audio is fulfilled. The NQ 30 is proof that state-of-the-art digital and analog technology can coexist with craftsmanship. The subject here, however, ultimately is music, and the heart of music is in the listening. To fully appreciate the quality of the NQ 30, we recommend that you visit your Mark Levinson dealer for a full audition. uvinsonrnar-11-r Mark Levinson® products are designed and manufactured by MADRIGAL AUDIO LABORATORIES P.O. Box 781, Middletown, CT 06457 FAX (203) 346-1540 FASTFORE -WORD AUDIO listen to the new speakers. The reason for V.P./EDITOR-IN-CHIEF this is the extraordinary regard the Thiel Eugene Pitts III people have taken for the safe transport of the CS5s, a regard I wish every speaker ART DIRECTOR Cathy Cacchione maker showed for the fruits of his labor. Now, the CS5s are rather heavy, at 180 ASSOCIATE ART DIRECTOR pounds each, so the firm sends these Linda Zerella speakers out in pairs of individual crates, TECHNICAL EDITOR each of which is big enough for a large Ivan Berger MANAGING EDITOR man to lie in. The pairs of crates are tied Kay Blumenthal together with four additional boards, and ASSOCIATE MANAGING EDITOR each crate is built with dozens of large Teresa Carriero ASSOCIATE MANAGING EDITOR wire staples. Inside each crate, strips of Douglas Hyde Ior most of the past three days, I have wonderfully resilient ethafoam are put DIRECTORY EDITOR been dealing with a change in the into strategic positions using hot -melt Ken Richardson reference speakers we use in our ASSISTANT EDITOR/MUSIC glue. I had two strips come loose when I Michael Bieber listening room at Audio. I won't say opened up the second crate and leaned on ASSISTANT EDITOR that I've spent every minute boxing them; the hardware store around the Gerald F. McCarthy and unboxing speakers; I have taken corner from our offices sold me a spray ASSOCIATE EDITORS and made quite a few phone calls, read a can of 3M Type 76 adhesive that worked Edward Tatnall Canby, Bert Whyte few galley proofs, and written a few letters. very well with a double application. SENIOR EDITORS But since we don't do this as often as every I do not think that all speakers need to Leonard Feldman, D. B. Keele, Jr., David Lander year, it's worth discussing why and how. be shipped in crates, but I certainly do feel We're changing from Thiel CS5s to B & W CONTRIBUTING EDITORS/ARTISTS that the use of such resilient foam should Michael Aldred, Herman Burstein, 801 Ills for several reasons. The principal be all -but -standard in the industry. We David L. Clark, Anthony H. Cordesman, one has to do with a recent move from use only three shipments via common Ted Costa, John Diliberto, Frank Driggs, John Eargle, Susan Elliott, Edward J. Foster, one listening room to another and dealing carriers to get speakers through our review Joseph Giovanelli, Bascom H. King, with a space that has different and poorer system, but the most usually used foam Edward M. Long, Robert D. Long, dimensions. The other reason is simply my Frank Lovece, Jon W. Poses, Jon R. Sank, simply shatters and shreads at the first John Sunier, Michael Tearson, desire to use the same reference as our good impact, making it nearly worthless. Jon & Sally Tiven, Michael Wright principal speaker reviewer, Don Keele. Even with relatively lightweight items, Both speakers are fine examples of the AUDIO, April 1993, Volume 77, Number 4. AU- such as tuners, this foam too often isn't up DIO (ISSN 0004-752X, Dewey Decimal Number science and art of loudspeaker design, and to the second shipment, and needs to be 621.381 or 7783) is published monthly by Hachette the change should not be taken as a knock Magazines, Inc., a wholly owned subsidiary of Ha- supplemented with whatever is at hand- chette PublicationkL Inc., at 1633 Broadway, New on the Thiels or as an indication that I feel bubblewrap, newspapers, other publishers' York, N.Y. 10019. Printed in U.S.A. at Dyersburg, the B & Ws are superior. Indeed, I Tenn. Distributed by Warner Publisher Services Inc. magazines, foam peanuts, etc.
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