November 1972 Volume 29 Number 5
Total Page：16
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lereo Review Four new and completely different AM -FM stereo receivers with increased performance, greater power, unsurpassed precision and total versatility. SX-525 AM -FM STEREO RECEIVER - 72 WATTS IHF "HE'S,'" SEEREO DECEIVER MODEL 5,52E R.A.A,Cr VCLUM1, SPEAKERSiV G ENONE SX-626 AM -FM STEREO RECEIVER - 110 WATTS IHF Pioneer has SX-727 AM -FM STEREO RECEIVER - 195 WATTS IHF 1.11%4 I I, STFPEO 10E 108 91 100 102 104 8891 92 94 96 114EISLE oo 9q. SX-828 AM -FM STEREO RECEIVER - 270 WATTS IHF CriticsAgree... PioneerYou'll be receiver reading linelots inabout a wide the varietynew of thesepublications.fromof(reprints these just receivers publications.available)a few. Acclaim is evident now Hereand appearing in enthusiasm are reviews highlights in many for electricalhas"Pioneer's(HirschSTEREO a degree -Houck performanceREVIEW moderately of Laboratories) operating priced previously flexibili:y SX-727 foundand ersonlyperformance . in.. somein many of it istheareas somewhat most of expensiveits measured better receiv- thanwasprice amongmuch level .ofthe. the. beststereo competition we FM have separation measured." at its technologyAUDIOrepresentsreliable "...instrument (Thestate-of-the-artin its SX-727)Jesign that onecertainly is receivera perform- rugged, excellent"areaspecsequalledance ...... in selectivityFM justor exceededperfo-mance about wasevery exce'lentGUIDEHI-FI STEREO "This performer (SX-828) BUYERS' features frequenciesfull...reception selectivity pcwer ofoutput . weakwas.. excellent atexcellent." FM all signals Long before the current wave of You can't expect great music Exclusive protector circuit consumerism, Pioneer had establishedwithout great specifications. for speakers. its reputation for superior quality Pioneer's reputation for high Another example of craftsmanship. This reputation has performance capability is thoroughly Pioneer's advanced engi- been continuously augmented by our reinforced in these four receivers. neering is the automatic commitment to building high fidelity Listening to them substantiates it; the electronic trigger relay components with a measurable extra specifications tell the reasons why. system designed into the margin of value. Our four new Since Field Effect Transistors SX-828 and SX-727. receivers - SX-828, SX-727, SX-626, increase sensitivity, they're i icorpo- Since the signal is trans- SX-525 - are designed to meet a wide rated into the FM tuner section of mitted directly to the range of requirements and budgets. each unit. For example, the SX-828 speakers because of the Yet each unit incorporates a uses 4 FET's. You get greater direct -coupled amplifier, significant array of features and selectivity and capture ratio with this fail-safe circuit refinements built into the top new Integrated Circuits and Ceramic protects your speakers model-the SX-828. Regardless whichFilters in the IF stage. Here's a mini against damage new Pioneer receiver you finally spec list. and DC leak- select, you are assured it represents SX-828 SX-727 SX-626 SX-525 age, which can the finest at its price. FM Sensitivity (114F) 1.7uV 1.8uV 2.0uV 2.2uV cause distor- Conceptual diagram (the lower the better) tion. It also Selectivity +75dB +70dB +70dB +45dB guards against (the higher the better) Awl 111, short circuits Capture Ratio 1.5dB 2.0dB 2.5dB 3.0dB in the power onsistent Dower throua out the bandwidth. (the lower the better) transistors. Power Bandwidth All exceed by a wide margin the it's absolutely usable sound frequency spectrum foolproof. Inputs and outputs for every Versatile features increase purpose including 4 -channel sound. your listening enjoyment. More meaningful power. Depending on your listening interests Our engineers have outdone them- When it comes to power, each model and desire to experiment in sound, selves with a host of easy -to -use provides the most watts for your each receiver provides terminals for features. All four units include: money. This is meaningful power. a -wide range of program sources. Power that is consistent throughout loudness contour, FM muting, mode the 20-20,000 Hz bandwidth (not just Inputs: lights, click stop bass/treble tone when measured at 1,000 Hz.) sx-sx-sx- SX- controls with oversize knurled knobs, Especially noticeable at the low end of Tape 828 727626 525 and an ultra wide linear FM dial scale the spectrum with improved bass monitor 2 2 2 2 that lakes the squint out of tuning. response, the overall effect is greater Phono 2 2 2 Phono/Mic. Except for the SX-525, they all employ frequency response and low, low Auxiliary 1 1 1 1 high and low filters. Enlarged signal strength meters make tuning easier distortion. Microphone 2 1 1 Phono/Mic. RMS @ 8 ohms (as above) than ever. Center tuning meters Model IHF Music Power Both channels are included as well 4 ohms driven @ 1KHz in the SX-828 and SX-727. SX-828 270 watts 60+60 watts Further sophistication is SX-727 195 watts 40+40 watts offered on the top two SX-626 110 watts 27+27 watts Models with a 20dB audio SX-525 72 watts 17+17 watts muting switch - the perfect answer to controlling Direct -coupled amplifier background music. As circuitry and twin power the senior member of the supplies improve responses. family, the SX-828 is Of course, having power to spare is SX- SX- sx- SX- endowed with speaker indicator lights important; but directing it for Outputs: 828 727 626 525 (A,B,C,A+B,A+C) and a tuning dial maximum performance is even more Speakers 3 3 3 2 dimmer for creating a more intimate vital. In the SX-828 and SX-727, you lighting atmosphere. will find direct -coupled circuitry in the Headsets 2 1 1 1 power amplifier combined with two Tape Rec. 2 2 2 2 Some day other stereo receivers will separate power supplies to maintain strive for this total combination of consistent high power output with Someday, if you want 4 -channel power, performance, features, positive stability. This means sound, all models have 2 inputs and precision and versatility. Why wait? transient, damping and frequency 2 outputs to accommodate a unit such Pioneer has more of everything now. responses are enhanced, while as Pioneer's QL-600A Decoder distortion is minimized. In fact, it's Amplifier. With it, and two additional See and hear these magnificent less than 0.5% across the speakers, perfect 4 -channel sound is receivers at your local Pioneer dealer. 20-20,000 Hz. bandwidth. simply achieved. SX-828-$429.95; SX-727-$349.95; SX-626-$279.95; SX-525-$239.95 Ultra wide linear FM dial scale takes the squint out of tuning. Prices include walnut cabinets. U.S. Pioneer Electronics Corp., 178 Commerce Road, Carlstadt, New Jersey 07072 CD PIONEER' when you want something better West: 13300 S. Estrella, Los Angeles 90248 1500 Greenleaf, Elk Grove Village, Ill. 60007 Canada S. H. Parker Co.. Ontario IMPROVE YOUR HEARING FOR $200. Sometimes high fidelity people lose heard when they tested the first offered as an integral part of an sight of what it's all about: Sound. automatic turntable with Zero automatic player." High Fidelity. The ultimate test of any piece of Tracking Error. This is, to our "All of these features combined high fidelity equipment is what you knowledge, the first time a into one automatic turntable make hear. turntable has been given credit for news, even though some are found on That's why, of all the statements making records sound better. other units. Only in the Zero 100 are made by equipment reviewers about they all put together." Audio. our Garrard Zero 100, the most 0 When Audio talks about "all of significant were these: these features" they're referring to "Using identical virgin records, such things as our magnetic and virgin styli in identical good anti -skating, variable speed control, cartridges, the Zero 100 on occasion illuminated strobe, viscous -damped sounded markedly 'crisper' than Articulating cueing, 15° vertical tracking other turntables." Rolling Stone. adjustment, patented Garrard "A listening test proves to bring Synchro-Lab synchronous motor and new life to many records, noticeably P.U. arm our exclusive two -point record reducing distortion on the inner support in automatic play. grooves." Radio Electronics. But all of this gets back to our Pickup head pivots P. U. arm original point. It is the sound that in this direction as arm Articulating pivot- - Stylu tracks across records. pivot-fixed hood Center line of makes the difference. After all, a cartridge tangential to record groove. 4.1 $200 record player should give you a really meaningful difference. And Pickup arm Cartridges and other components, Articulating arch yes. But never a turntable - until thethe high fidelity experts agree that "From about 7 in. diameter to Zero 100. people who own a Zero 100 will hear runout, the Zero 100 delivers By this time you probably know better than people who don't. considerably less distortion and how we achieve Zero Tracking Error. If you'd like to read the reviews in greater definition than with the The principle of the articulating arm, full detail, we'll send them to you same pickup mounted in a standard continually adjusting the angle of along with a complete brochure on arm. The improvement in sound the cartridge so it is always at a 90° the Zero 100 and the Garrard line. quality is notably impressive." tangent to the grooves, is a simple Write to:British Industries Company, Elementary Electronics. one. But the ingenious engineering Dept.K32,Westbury, N.Y. 11590. "The articulated arm of the Zero and the development of the precision 100 produced less distortion, and pivots to make the principle work, GARRARD therefore greater definition, on took several years. high-level, musically complex But enough from us.