GRUNDIG TS 945 (1979) | Super Hi-Fi

 

The important technical features of the TS 945 are: HiFi according to DIN 45 500, 4-motor tape deck with IC control logic, 4-track stereo with track selection display via LED, Maximum reel size 22 cm Tape, speeds 9.5 and 19 cm/s, variable rewind speed. Special features: State-of-the-art, service-friendly circuit concept through modular technology, tape travel similar to studio technology. Retractable pinch roller and servo-driven head shield allow for slit-free tape insertion. Durable "Recovac" heads and long-life tape guides made of non-magnetic, stainless steel. Optimum belt protection and precise start/stop operation thanks to only one pressure roller. Capstan motor with PLL control for precise maintenance of the tape speed through mains synchronization. 4 motors: 2 DC winding motors for fast rewinding, 1 mains-synchronized DC motor with PLL circuit and synchronous display in the control panel. This is the new clever tape recorder for studio perfectionists, the TS 945 HiFi-Stereo, The Super-HiFi Tape Deck. The ease of use is hard to beat in this price range: The power amplifiers for hi-fi headphones are individually adjustable. The TS 945 features electronic short-stroke keys and electronic memories for tape transport control. Preprogramming any tape position is possible with the preset counter. Level control can be set: either manually, with a limiter, or completely automatically. Both channels are separately adjustable. Thanks to the variable rewind speed, every type of tape can be optimally wound. In cueing mode, "listening in" to the tape is possible, allowing precise location of specific passages...and what more could a passionate amateur musician ask for? A stereo mixer, echo in stereo, duoplay, synchroplay, and multiplay? High-quality power amplifiers with 2 x 50 mW output power at 400 Ω for HiFi headphones.

Technical data:

Track: 4-track Stereo

Tape Speed: 9,5/19 cm/s

Max. reel size: 22cm

Frequency response:

20-16.000Hz 9,5 cm/s

20-20.000Hz 19 cm/s

Dimensions: 47 x 18 x 41 cm

Weight approx.: 13 kg

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PHILIPS AF977 Automatic (1978) | Direct Control Quartz PLL

 

Philips turntables, with all their electronics, from sensor buttons to quartz control to photoelectric limit switches, are difficult to compare with others. The belt drive of Philips turntables protects the turntable from disturbing vibrations of the motor. And the Direct Control technology regulates the speed directly on the turntable axis. From a hi-fi perspective, Belt Drive Direct Control offers the best of both worlds: high rumble clearance and accurate speed. With a precision and durability that can only be achieved with very expensive direct drive systems. The absolute top model of the Philips Electronic HiFi generation is the AF 977 Automatic. From the quartz PLL control to sensor keys, digital strobe display, and photo-electronic limit switch with full electronic precision. Fully automatic, also manually operated. Subchassis suspension. Precisely readable stylus force scale. In short: HiFi progress that can be heard - and seen.

Technical data:

Belt Drive with Direct Control Quartz PLL

Wow and flutter DIN 0.05% WRMS 0.025%

DIN B Rumble-to-noise ratio 73 dB

Platter diameter 310 mm 

Needle tracking force adjustable 0.75-3 p (1p 10 mN) 

Cartridge: Super M 412 İl RETMA 1/2"

Tonearm length 215 mm

Dimensions 42 x 14,1 x 34,8 cm

Weight 6kg

Original sale price: 845 DM in Germany

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DIATONE My Side (1981)

A quality compact component system with a microcomputer-controlled vertical linear tracking player. Introducing the Diatone My Side from 1981, which packs the operating feel of microcomputer control into a compact size. Its compact size means it fits neatly on your desk. The vertical operating turntable is fully automatic and microcomputer controlled with one-touch operation, and the cassette deck is also microcomputer-controlled. There is also a digital synthesizer type auto-function tuner with FM/AM station presets. The My Side system consists of the LT-10V turntable, DA-F41P tuner, DA-U41P amplifier (40W/ch), DT-41P cassette deck and the DS-141 loudspeakers. This system was sold in Japan as "Diatone My Side" while on the international market it was sold as "Mitsubishi Interplay System". 

 

AIWA AX-7800 (1979) | Stay Tuned

 

This is the revolutionary AIWA AX-7800 receiver! An exceptional high fidelity receiver designed to make tuning faster, easier and more accurate than ever: the revolutionary new AX-7800. With the same quartz-locked digital-synthesized tuning system utilized on the most sophisticated and expensive FM tuners available today. Now perfect tuning is as simple as pressing a button. There's no more fumbling or fidgeting with tuning knobs, dials and center tuning meters. The new AIWA AX-7800 simply doesn't have any. Instead, it provides an instant digital readout that's perfectly tuned to the actual station frequency being received. Drift is impossible. Because AIWA's quartz crystal oscillator locks instantly and precisely into the center of each succeeding station's assigned frequency. Now when you tune the new AIWA AX-7800, you stay tuned. With unerring accuracy that even separates weaker stations from their stronger neighbors. Something no conventional receiver with AFC can do. And the AX-7800's DC-power amplifier gives you 60 Watts per channel RMS at 8 ohms from 20Hz to 20KHz. With no more than 0.05% THD.

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TEAC V-7000 (1990) | High Quality & High Performance

From TEAC. This was the new '90 model cassette deck. The higher the quality of the music source (CD, LD, BS), the higher the quality of the performance, the more one wanted a cassette deck that can match the quality of the source. 1990. Finally, the new generation of high quality cassette decks were added to the popular TEAC V series, with three new models featuring futuristic design and high performance. Midship mounting system with tape transport mechanism at the center inheriting the reliability of the V-9000, this high-precision mechanism has reached new heights in musicality. The V-7000 is equipped with a CA (Cobalt Amorphous) recording/playback combination 3-head that incorporates the latest technology. In addition to its excellent characteristics of both hardness and wear resistance, the amorphous non-crystalline structure is used to laminate the thin film into 14 layers, suppressing eddy current loss and greatly improving high-frequency characteristics. A quartz PLL D.D. motor with unparalleled accuracy is used, along with a closed loop dual capstan drive system. Other features: Dolby B/C NR system has a recording standard level of DIN 250nwb/m, and the recording margin is further expanded●Dolby HX Pro recording system expands the high-frequency recording capabilities of tape●Double FL display with high visibility, independent of level and recording mode information●Digital peak margin display that accurately shows instantaneous peak values ​​in dB●Accurate linear counter that always shows the amount of tape travel in time Display ON/OFF can be adjusted to suit the room environment CPS automatic song selection function (±15 songs) that operates like a CD player●CD direct input that bypasses the balance adjustment volume for straight recording●Return to zero that allows you to specify STOP, PLAY, and PLAY -PAUSE after rewinding the counter to the 0000 position CD level check that makes it easy to understand CD recording Smooth and reliable power loading●Auto monitor●Auto tape selector Auto REC mute (4 seconds)●Wireless remote control included●CD sync function that allows synchronized recording with a CD player. Optional remote control RC-394.

Specifications:

Heads: 3

Motors: 4

Wow&Flutter: 0,022% WRMS

Frequency response:

15-21.000 Hz Metal

15-20.000 Hz Chrome

15-18.000 Hz Normal

Size (WxHxD): 472x149x355mm

Weight: 9,8kg

Original sale price: 1100 DM in Germany

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harman/kardon ST-7 (1976) | Tangential Precision

 

The Harman/Kardon ST-7 turntable was introduced in 1976 and it is known for its innovative linear-tracking tonearm design. This feature was developed by Rabco (for their ST-4 model), a company specializing in tangential-tracking tonearms, which Harman/Kardon later acquired. The ST-7 was designed to provide precise playback by keeping the stylus perfectly aligned with the grooves of the record, mimicking the way records are cut in the studio. The arm, carried by the remarkable "rolamite" bearing, moves across the disc in a straight line. The result is a cascade of zeroes...Tracking error? Zero. Skating force? Zero. Stylus overhang? Zero. Horizontal friction? Zero. Vertical friction? Zero. Its sleek, mid-century modern design features a brushed aluminum plinth and touch controls, giving it a futuristic aesthetic for its time. The turntable is belt-driven and includes a stroboscope for speed adjustments. Very unusual but there is even a sticker on this turntable mentioning all the people involved in the engineering and design:

Dipen Guha : development engineer

Yasuhiro Okuda : industrial designer

Frank Baudille : project engineer

Irwin Katz : electrical engineer

Frank Holetsky : mechanical engineer

Len Rosenblatt : production engineer

Robert Brady : director of engineering

"and the people at Haman/Kardon, Plainview, Long Island, U.S.A."

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Technics SC-CD500 (1987) | Intelligent Compo

 

Great sound, smart functions, and an exclusive design. The CD500 was a big player in the world of sound in 1987. The reason why this intelligent component has such good sound is that the sound quality of each and every component of the system has been thoroughly refined. From the 50W+50W amplifier, which has enough power to play CDs with great force, to the large-diameter 23cm 3-way speaker with a luxurious round baffle, everything is a product that Technics is proud of. What's more, it is packed with intelligent functions such as a double reverse deck, a 29-key remote control, and a weekly timer. Technics Intelligent Combo SC-CD500. The basic SC-CD500 system includes a tuner, amplifier, CD player, cassette deck and loudspeakers and can be expanded with the SL-J100R turntable, SH-E70 EQ and SB-S30 surround speakers. A long series of Technics adverts in Japan were featuring Jennifer Connelly. 

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SONY STR-V55 (1979) | Pulse Power Supply

 

Synthesized Art. Sony's STR-V55 receiver from 1979 creates higher-fidelity with a computerized tuner, a DC power amp and Pulse Power Supply (a.k.a. switched-mode power supply or PWM power supply for more technically oriented enthusiasts). The measure of the receiver you invite into your home should feature unusually intelligent versatility. Ample power. Inaudible distortion. And an attractive design that speaks with a quality "finish." The tuner section is so sophisticated that a highly stable quartz-crystal oscillator locks in AM and FM signals for brilliantly faithful reproduction of broadcast programming. And the microcomputer gives you tuning options that simply don't exist any-where else. Memory scan means you press a button and preset stations are automatically tuned in sequence for approximately 3.5 seconds each. Hands-off tuning lets you automatically monitor your favorite stations and simply pressing the appropriate station button tunes in your selection for continuous listening. Choose auto tuning to capture stations with frequencies that you don't know for certain. A touch of a button precisely finds the next station encountered up and down the frequency band. Manual tuning lets you approach known frequencies at high speed and then obtains the exact frequency in precise, discrete steps. And preset tuning instantly recalls any of the eight stations that are stored in our the MNOS (metal nitride oxide semiconductor) memory that can't be accidentally erased. 

Beauty is not only designed for easy viewing, it's coordinated to be proudly displayed. Bright electro-fluorescent digits display frequencies. Bright green LEDs in a five-step array show signal strength. And red LEDs pinpoint your favorite stations at a glance. Consider the power of 55 watts per channel that propels the intimacy of the original performance through Sony's advanced DC amp technology. And a high-gain low-noise phono amp in the preamp section enables you to even use an MC cartridge with your turntable to capture the subtleness of the softest, most delicate music. It's also important to know that an efficient, compact Pulse Power Supply provides stable DC power even at peak levels. And highly responsive Hi-ft power transistors artfully reproduce complex wave forms even at high frequencies and full output power. Sound is so clear that quiet intervals are quiet even at the highest listening levels. Sony's STR-V55 is more of a receiver because you demand to hear more of your music.

Original sale price: 3598 DM in Germany

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Lo-D D-980DD (1979) | Direct Drive

 

The Lo-D D-980DD (Hitachi D-980 on the international market) is featuring the same Direct Drive Unitorque transport system as the D-5500A, while the D-980DD provided high quality sound reproduction at a very modest price. This is a three-head (titanium coated) cassette deck, with an optional wired remote control, offering such facilities as auto-rewind, memory, Dolby calibration, external fine bias, record mute and LED tape state indicator. A newly developed "feather touch" logic system ensures smooth and trouble-free transport operation, large illuminated VU meters and peak LED indicators enable distortion-free recordings. Soon after it's introduction it was replaced by the Metal tape capable D-980M. 

Technical data:

Head: 3-head titanium coated

Motor: 1xDirect Drive, 1xDC motor

Wow&Flutter: 0.03% (WRMS)

Frequency response:

20-20.000 Chrome

20-18.000 FeCr

20-18.000 Normal

Size: 435x165x256mm WxHxD

Weight: 7,7kg

Original sale price: 1200 DM in Germany

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YAMAHA CDX-2000 (1987) | Hi-Bit Digital Technology

 

The CDX-2000 appeared in 1987 as an upgrade of the previously released CDX-2200, the first high-bit player. While the exterior appearance and basic design followed that of the CDX-2200, the operation key panel was colored gold and the front panel featured the titanium color of the 10000 series, and its presence was enhanced by the four-piece construction and large heavy insulator inherited from the CDX-10000. Its major claim to fame was the 8x oversampling of its digital filter, and together with digital/analog component separation by the current isolation method instead of the conventional photo-coupler system it achieved a 118dB S/N ratio, phenomenal for its time. Additionally, as a symbol of the glitch-free accuracy achieved by the D/A converter component, it was equipped with the new Pure DAC Direct Switch that output the DAC signal without passing through a low-pass filter, well-received by audio enthusiasts as a novel approach compared to the sound of the "original" DAC. (Source: Yamaha)

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DENON DP-59L (1984) | Dynamic Servo Tracer

 

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PIONEER Private PRO-X1 (1988)

 

The digital straight concept, which focuses on the straightforward reproduction of the dynamics and transparent high quality of the original digital source, has reached a new high level with Private PRO-X1. This is the digital straight technology, which combines a digital output CD player with optical digital transmission system, and a digital amplifier with a built-in D/A converter. The digital signal from the CD is sent to the amplifier via optical fiber without being affected by electrical or external noise. As a result, the overwhelming dynamics and breathtaking transparency of the original digital source are reproduced in a straightforward manner. The 120W+120W integrated amplifier with built-in D/A converter boasts superb audio characteristics achieved through direct construction in pursuit of simple and straightforward circuitry. It also comes equipped with a CD/DAT direct circuit. Other high-quality features that can only be found on a PRO amplifier include a highly rigid honeycomb chassis (also used on decks and CD players) and gold-plated terminals (DAT output). The FM/AM/TV 3-band tuner features a luxurious DDD circuit for FM, an AM servo that also focuses on AM sound, and optimal microcomputer control. The twin recording/playback W reverse deck is equipped with twin Dolby HX Pro, which is a hot topic for recording digital sources. The speakers are 24cm 3-way speakers that emphasize deep bass reproduction, with a carbon cloth woofer and HE titanium domes for the midrange and tweeter. Motor-driven volume control for the amplifier. Auto program ED IT function for tape editing on the CD player, and a luxurious FL display with calendar display. The twin recording/playback W reverse decks are equipped with a quick reverse system and an electronic counter. There is also a timer for the 3-band tuner. This is truly a professional private PRO-X1. You can relax and enjoy its diverse high performance with the remote control.

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PIONEER SPEC-3 | SPEC-4 (1978)

 

The SPEC-3 professional stereo preamplifier is a exceptionally versatile pre-amplifier with 2 phono inputs, tuner, 2x AUX, 2x tape with duplicate, and an additional DIN connection. Designed specifically for record enthusiasts who enjoy recording to tape. You can choose between phono inputs and phono loads to optimally adjust your record playback. Tape duplicate (in both directions!) allows for easy editing of recordings. Also included are a low filter, a 32-step volume control, tone controls with selectable crossover frequencies, and a stereo/mono switch. Only 0.01% distortion over a range of 20 to 20,000 Hz (2 V output measured via phono). The SPEC-4 professional stereo power amplifier has an output power of 150 watts per channel into 8 channels from 20 to 20,000 Hz with only 0.01% distortion. Separate power supplies with two large transformers and two pairs of 22,000 uF electrolytic capacitors offer the same advantages as if two mono amplifiers were mounted into one chassis. This means considerable power reserves and optimal channel separation. The DC configuration and differential amplifier with a directly coupled output allow for a PIONEER frequency response of 5 to 100,000 Hz (-1 dB), a wide dynamic range, and guaranteed clean transient response. SPEC-4 specifications: Dimensions: 480 x 187 x 445 mm | Weight: 24,5 kg. Original sale price for SPEC-3 and SPEC-4: 3500 DM in Germany.

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PIONEER P-D70 (1983) | Sounds of The Future

 

Pioneer bring the miracle of LaserDisc™ technology to the new P-D70 Compact Disc player. Now, many of the revolutionary laser-optic and digital electronic techniques first developed for the sensational LaserDisc™ brand videodisc systems are yours to enjoy in the P-D70 Compact Disc player from 1983. Your favourite music is permanently stored in digital form on a pocket-sized disc enabling the total beauty and excitement of a live performance to be re-created in your home. Here's how Pioneer does it: 3-spot laser beam with three sophisticated servo systems. Focus parallel drive servo to improve sensitivity and quick search. High-quality audio-use components and a new LSI for better sound. Convenient search and random access put the fun in hi-fi. This is a second generation  CD player developed by taking advantage of optical technology cultivated in laser discs and the latest digital technology. It is equipped with Pioneer's in-house developed pickup utilizing the know-how accumulated in the development of optical video disc players. The pickup drive employs a focus parallel drive mechanism in which multiple magnetic circuits and multiple coils are placed in a straight line between objective lenses. This increases the sensitivity of the drive system and enables high-precision and high-speed search. The signal processing circuit is equipped with a newly developed LSI consisting of two chips, which greatly contributes to miniaturization and low power consumption, and realizes stable disk rotation control. The analog section is equipped with a newly developed 11th-order low-pass filter enclosed in a copper cap. High-performance parts such as high-sound resistance for high-wage audio equipment, polypropylene and mica capacitors, and 70 μ m copper foil printed circuit board are used. The display uses a pure digital signal display monitor with binary display and peak display. In binary mode, the change in the upper 12 bits of the 16-bit PCM signal read from the disk except for the sign bit is directly displayed. Since each bit has a weight of 6 dB, it is possible to see a signal level change of 72 dB (-54dB to + 18 dB). When the level meter switch is switched to the peak mode, a peak meter of 4 dB per dot is used for differential operation. The display range is -32dB to + 12 dB. Subcode output terminal (eventually never implemented) and wired remote control terminal are mounted at the back of the unit.

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