June 17, 1972
4-Channel Units
in Spotlight But..
By EARL PAIGE & RADCLIFFE JOE
The dominant trend in four-channel equipment is the sheer abundance of it. Very few hardware firms are waiting. And while some companies have one or two models, others have as many as 10 new quadrasonic machines.
Another dominant trend, though, is the battle between the disk player manufacturers- those pushing the CBS' SQ, Sansui, Electro-Voice type matrix system and those going with the discrete "Quadradisc system developed by JVC, Panasonic and RCA.
While CBS has been lining up SQ licensees for months, at least 12 hardware companies have committed to make discrete phonograph equipment: Harman-Kardon, Toshiba, Hitachi, Nippon Columbia trio (Kenwood in U.S.), Onkyo, Sanyo, Sharp, Pioneer, RCA, JC and Mitsushita (Panasonic).
One more area of intense activity is in four-channel adapters, decoders and systems for converting two-channel to four-channel.
Tape equipment is not so affected by the matrix vs discrete contest, because two-channel 8-track was established and had the capability for four-channel; more important, perhaps, dealers selling huge amounts of 8-track prerecorded cartridges did not hesitate to stock four-channel cartridges too.
In other words. where 8-track four-channel is concerned, the software was set (though it is still not in great abundance).
In fact, 8-track, never really embraced by audiophiles, now blossoms forth in hi-fi magazine specials on four-channel.
Compatability also helped; most
8-track machines are described as combination two- and four-channel units
Virtually every manufacturers seriously involved in automotive tape players has four-channel in the line.
There are of course, many open reel machines. But software, long a problem in two-channel open reel, looms very large in quadrasonic.
Thus, Toyo's offer to provide 40 tape selections from Ovation, Capitol, Project 3 and Alshire Presents.
One area where four-channel has not been a factor, naturally, is in cassette. Compatibility with two-channel is one problem, but again, software retailers would be less inclined to handle a double prerecorded cassette inventory, experts point out.
One more area of rapid four-channel growth however is in receivers and amplifiers. Some firms stress the "ali systems" theme; Lafayette, for example, advertises its LR-440 $369.95 receiver as handling "all the new four-channel program sources.”
Of course, discrete FM broadcasts are still experimental and await FCC sanction; Lafayette has provided a detector output for this contingency.
Still another area where four-channel will be promoted is in consoles. Motorola, which has announced it will push the console market, has introduced a unit with four-channel sound from one cabinet--five cabinet designs are available.
There are more sophisticated combination units too.
Philco's component system at $739.95 (M5780DWA) features four channel systems AM/FM stereo and built-in cassette recorder.
A number of hardware manufacturers are constructing special store displays and demonstration promotions. Among them is Motorola, which initially had a four-channel player equipped automobile at various shows and conventions. The firm now has a "sound paddle" allowing retail salesmen to demonstrate everything from monaural to four-channel.
Teledyne, for example, is offering dealers two four-channel displays, one eight foot tall and the other see-over height.
Car Units
Pioneer, Bowman Astrosonix and Afco are among those showing four-channel auto stereo units. Pioneer's OT-444E is a two/four channel machine at $119.95. Boman's BM-950 combines four-channel and burglar alarm at $79.95 and BM-1950 has AM/FM stereo radio at $99.95. Afco Electronics is introducing a four-channel adaptor at $20.
Other auto units include JVC's 4AE1352, also a two/four channel unit with burglar alarm at $149.95.
Craig is confining its 4-channel representation to one 8-track car unit and is holding back from any home models. The company plans to have some new 4-channel hardware at the midwinter CES show in January.
For the time being, however, Craig's one tape unit is the 3129, which is offered with a Columbia Records demonstration tape and four speakers at $129.95.
This car unit which has been available for the past year, has been a "steady item,” according to Loren Davies, the company's sales director. "We're finding the movement right on a predictable curve.
It still is a new concept and right now we're filling the supply lines.
"Quadrasonic sound is still a conversation topic. Four-channel sound in the 8-track market is still down the road and we do see it as a potential market."
In the car field, Toyo has the 721 and 722 8-tracks both below the dash installations at $139.95.
Already available as a home unit is the 707 with input functions for a QC decoder and phonograph and tape decks at $179.95. Speakers are additional.
C.T.I., Inc. (nee Car Tapes, Inc.), will bow a four-channel 40-watt
8-track car unit with automatic head cleaner, slide controls, program lights, fine tuning and 28-watt peak power, according to E. Holtz, projects director. List is $89.95.
Dyn Electronics, a pioneer with innovations such as remote controlled car units will only show one model in four-channel: DS905 at $89.95.
Sparkomatic is among dozens of firms with adaptors for cars; it's "quadsonic" matrix adaptors range
$12-$16.
Home Equipment
In home equipment, one of the largest entries in four-channel is Sanyo's line that includes 10 units.
Highlight items are DXL-5485 with
AM/FM stereo, four amps, two-and four-channel 8-track deck, four speakers, list $250; GXT-4830 component system with two- and four-channel 8-track deck, record changer, AM/FM receiver, four book shelf speakers, list $350.
Also: DXR-5111 four channel system with decoder matrix circuitry, four amps, AM/FM stereo receiver, with facility for playing two-channel tapes through the four-channel circuitry, list $175; DXR-5111P same as DXR-5111 but with turnatable at $225.
Teledyne Packard-Bell, the TV set specialist, is building its audio console line with 12 models, all with matrix 4-channel circuitry and built-in 8-track players. These units will be sold through audio specialty dealers as well as existing accounts.
The price range for these units skyrockets at $1,200 and drops to $99.95 for a compact receiver. The top of the line is the RPC 489 series with extension speakers which may be removed from the console.
Open Reel
Teac is introducing two new 4-channel open reel players and eliminating four in its TCA line.
The new units are the 2340 ($759.50) and the 3340 ($849.50).
Both units have a "simulsynch" feature which allows the user to record on each of the four individual channels and then play that data back simultaneously in a fixed situation.
The four units being phased out by the Japanese manufacturer are the TCA 40, 41, 42 and 43.
Sony Superscope has 4-channel equipment in open reel and 8-track modes. There is the auto 8-track TC84 at $169.95 and the home
8-track with AM radio, the TC 248D at $169.95. In the open reel category, Superscope has the 854-4S with sound synchronization capabilities at $1,795; the 277-4 at $339.95; the 366-4 at $499.95 and 654-4 at $875.
The company calls its 4-channel open reel machines home audiophile units since they are designed for sound buffs.
Toyo, with three units already available and two home units to be bowed at CES, aims to also provide its dealers with programming.
"The biggest problem in the 4-channel field has been software," states Ted Inhara, Toyo's sales chieftain. "So were coming up with a 40 tape carousel along with our equipment.
Toyo's distributors will be able to reorder the tapes and Inhara feels this will help get the music before the public along with the machines.
Toyo's two CES models for the home are the 730 8-track along with AM/FM stereo at $279.95.
This unit has to use Toyo's QC-2 decoder which sells for $69.95. The model 740 is a stepup from the 739, with built-in decoder at $349.95. Speakers are extra for both units.
Toyo has encountered fair sales for its 4-channel equipment, Inhaha says.
Other Units
Among the many companies with equipment to convert existing systems for four-channel is Lafayette Radio with its LA-524 auxillary amplifier and decoder to "convert" standard stereo into discrete and matrix four channel. The unit lists for $79.95 and features built-in SQ decoding circuitry for Columbia SQ type disks. The 524 and two speakers are add-on units for discrete application. In the unit,
Lafayette included its
"composer circuitry" for deriving four dimensional sound from normal two-channel sources.
Pioneer is offering its GT-6600 four-channel open reel player/recorder deck at $599.95 and QC-800 four-channel preamplifier with a
"quadralizer" at $249.95.
Other four-channel open reel decks include JVC's 4RD-1401 at $449.95, 1400 at $399.95 and RD-1405 at $299.95.
Magnavox's 8911 four-channel converter for component and console systems does not require a separate amplifier and produces four-channel from four-channel sources and simulated four-chan-nel from other sources.
In amplifier/receiver equipment, Kenwood will bow the KR-6140A to be marketed later in the year.
It has circuitry for the SQ matrix broadcasts and capability of playing matrix disks and tapes as well as discrete software.
A KSQ-20 adaptor and KSQ-400 adaptor/amplifier rated 40 watts (IHF) for driving the rear channels are other units designed to help convert present two-channel set-ups.
Another unit combining matrix and discrete is Admiral's STC981 component system incorporating AM/FM stereo radio, plug-in turntable and 8-track. The unit, which lists for $269.95, also has four matched speaker enclosures each containing a 6-in. and a 3½-in. speaker.
As with other manufacturers, Topp is combining discrete and matrix in its two Juliette branded players by offering synthesizer and discrete capability. There is AQS-42 two-channel synthesizer with discrete four-channel: 8TQM-474 two/four channel automatic compatible player; 8TQM-5920 two-four channel with built-in amplifier and pre-amplifier; PAX-650 entertainment center (contains 8TQD-474 deck, AQS-42 synthesizer, four speakers and stands) which lists for $350.
Of many with two-four channel decks is Hitachi's TPQ-144 listing at $I29.95. Hitachi also has AA-100 adaptor, $24.95.
Pioneer has a home two/four channel deck, QH-666K, with four speakers at $239.95.
Pioneer
Pioneer Electronics is unveiling a broad line of quadrasonic equipment units including two quadrasonic amplifiers, one quadrasonic preamplifier, a quadralizer adapter, an SQ decoder two quadrasonic receivers, an innovate line of new speakers and other accessories.
Pioneer model No. OX-8000A
four-channel receiver is a single unit receiver designed to decode the majority of regular matrix-type records, as well as the less conventional SQ system sources.
Officials of the company also claim that Model OX-8000A is equally compatible with discrete four-channel recordings, as well as regular two-channel records and tapes. List price is $549.95.
Also in the line of new Pioneer four-channel receivers is model No.
QX-4000. This is a unit that lists for $349.99. Its features include AM/FM reception, two kinds of matrix decoders for the reproduction of all matrix encoded sound sources available today.
Leading the line of Pioneer four-channel amplifiers is the model
QA-800A. Described as a total capability unit, it provides up to 204 watts of musical power at four ohms.
This brand new system is completely integrated with four amplifiers and matrix decoding circuitry.
The unit is compatible with all existing matrix four-channel sources, as well as discrete four-channel sources and conventional two-chan-nel records and tapes. It carries a price tag of $369.95.
Pioneer's model No. QM-800A is designed for use as the power unit incorporated into a professional four-channel stereo system.
It has a power bandwidth of 10 to 50,000 Hz, with 30 watts per channel of continuous power at 8 ohms. According to Pioneer officials, QM-800A is recommended for use with the identically sized and styled four-channel preamplifier, the Pioneer model QC-800A.
The unit can also be used in a two-channel two-way multi-amplifier system, in conjunction with an electronic crossover network. Its signal-to-noise ratio is 90db or more, distortion is low and the power output is stable. List price on this unit is $329.95.
Further down the line is the Pioneer model No. QC-800A, a single unit, four-channel preamplifier with self-contained SQ decoder and regular matrix decoder, will create four-channel sound from any existing two-channel source. The QC-800A is fair traded at $269.95.
Pioneer's QL-600A is a decoding amplifier designed for use with four speakers and an existing stereo amplifier. The unit affords the listener a choice of two types of decoding circuits—a regular matrix circuit for sound reproduction of most four-channel program sources now available, and the other an SQ matrix for reproduction of SO four-channel sources.
The QL-600A also provides terminals for discrete four-channel, as well as conventional two-channel stereo. It carries a list price of $229.95.
Pioneer's QD-210, an SQ de-coder. features a low-noise, low distortion decoder circuit with a high signal-to-noise ratio. The unit which also features solid state circuitry, weighs six pounds-13 ounces and is fair traded at $99.95.
Rounding out the line are the QT-6600, a four-channel tape deck with record and playback features; and the O1-2100 a four-channel 8-track tape deck with a list price of $249.95.
Sansui
The Sansui Electric Co., will thrust into four-channel with several sophisticated pieces of equip-ment.
Top of the line is the Sansui model No. QR-6500, a four-chan-nel AM/FM stereo receiver, that works as a decoder for matrixed four-channel recordings and broadcasts, plus a synthesizer for two-channel sources.
This unit offers 37 watts of continuous power per channel at 8 ohms, has a stabilized power supply, is capable of tape to tape copying, and has a power bandwidth of 20 to 30,000 Hz.
Sansui's model No. QR4500 is another four-channel AM/FM stereo receiver with most of the features of model No. QR6500.
This unit is driven by 27 watts of continuous power per channel at 8 ohms, with power bandwidth of 20 to 30.000 Hz.
Also incorporated into this piece of equipment are a discrete four-channel input mode, four- and two-channel tape recording outputs and monitors, headphone jacks for front and rear channels and stabilized power supply.
Sansui model OR1500 is a complete four-channel center with all the control facilities for every four-channel and two-channel mode. It also boasts a decoder for four-channel reproduction, and a synthesizer for converting two-channel sources.
Also included are illuminated digital four-channel mode indicator, an exclusive QS phase shift and phase modulator circuits for true four-channel source localization, and live sound-field effect.
The Sansui model No. QR500 is another four-channel AM/FM stereo receiver which decodes all matrixed FM broadcasts and recordings for reproduction in four authentic channels. It also synthesizes four-channel sound from any two-channel source. It operates on 60 watts of IHF music power, and features many of the innovations utilized in the more expensive models.
The Sansui model Q8500 is a four - channel converter, decoder, amplifier that completely updates any conventional two-channel stereo system for full four-channel capability. It also decodes matrixed quadrasonic recordings and broadcasts, and synthesizes four channels of sound from any two-channel source. Complete control capability, and power amplifiers for the rear channels are included.
Another four-channel converter-decoder-ampliier is the Sansui model QS100. A scaled down version of the QS500, this unit also converts regular two-channel stereo systems into complete four-channel centers. Like its bigger brother also decodes matrixed four-channel broadcasts and recordings, and synthesizes four-channel sound with any two-channel input.
The Sansui model No. MQ2000 is a four-channel stereo AM/FM receiver/phonograph module. Features include a high fidelity automatic turntable, with a quality magnetic cartridge.
Also included are matching acoustic suspension speakers, a decoder for reproducing all matrixed FM broadcasts and recordings in the four authentic channels, a synthesizer for converting any standard two-channel stereo broadcast or recording to a four-channel sound field, an AM/FM tuner, and four power amplifiers.
Cassette 'Q'
Sansui is also suggesting that its new dolbyized stereo cassette deck, model No. SC700, be hooked up to the MQ2000 for copies of all four-channel encoded recordings or broadcasts.
These can, in turn be played back in full four-channel sound through the decoder in the MQ-2000.
Panasonic
Panasonic features four new quadrasonic music systems. Top of the line is the Anandale, model RS-864S, a four-channel 8-track home entertainment center with a built-in FM/AM/FM stereo radio.
In this unit, four-channel sound presence is delivered to the listener from conventional two-channel sources via quadruplex circuitry.
The unit is fitted with the Panasonic "Pana-Ject” innovation which automatically ejects cartridges at the end of the program.
Other features in the Anandale include a speaker separation control, AC bias and erase, two VU meters, direct read-out program in-dicator, three position monitor switch. There are also input and output jacks and remote balance control. List price on this unit is $399.95.
Panasonic's Rosemead, model KE-8840 is a custom four-channel stereo music center with a car convertible four-channel 8-track player, and FM/AM/ FM stereo radio that has a built-in four-channel balance scope.
The Rosemead operates on 60 watts of power, and its four-chan-nel 8-track player can snap into an optional car bracket. Also optional is a cassette adaptor.
The unit, model No. RE8840, utilizes quadruple circuitry, and features jacks for headphones, phonograph, tape, and four-channel auxiliary. It carries a price tag of $379.95.
Panasonic's model SE-4040 is a complete four-channel stereo home entertainment center with four-channel 8-track cartridge player, stereo phonograph and FM/AM/ FM stereo radio.
According to Panasonic's officials, use of the company’s exclusive “direct coupled” circuits
ITL-OtL-OCL helps eliminate unnecessary transformers and capacitors. Suggested minimum retail price on this unit is $299.95.
Also included in the new group of quadrasonic equipment is the Wittier by Panasonic. This unit, model RE-8420 is four-channel 8-track cartridge player with built-in FM/AM/FM stereo radeo. It features many of the innovations utilized in other models, and carries a suggested retail price of $279.95.
Optional extras for this piece of equipment include a four-speed record changer, stereo headphones, four-channel remote balancer.
Meanwhile the company has also developed a demodulator, and an automatic record changer that plays back and reproduces four separate, discrete stereo channels from discrete four-channel records.
The demodulator, Model SE-405, has been designed for both the general consumer and the high fidelity buff, according to Ray Gates, vice president of Panasonic's consumer electronics group.
He added that it would be sold with a semiconductor cartridge for ideal discrete four-channel repro-duction. The demodulator may also be used with any four-channel amplifier and most high quality magnetic cartridges. Suggested minimum retail price on this unit is $134.95.
The Panasonic Model SL-800 is a fully automatic record changer with a built-in discrete four-chan-nel disk demodulator. It is priced at $199.95.