PIONEER CX-7000 (1977) - The Super Component

 

The CX-7000 cassette-receiver offers most of the truly great features found on individual Pioneer stereo components but with increased operational convenience. Integrated amplifier. FM/AM Tuner. Front loading cassette player. The power is a super substantial 25 watts per channel, min. at 8 ohms from 20 to 20,000 Hz with no more than 0.3% distortion total harmonic. Pioneer has a super-sensitive (11.2 dBf/2.0µV) and super selective tuner section (60dB). An automatic pilot signal canceller is included to prevent sound deterioration in the high frequency range and of course the PLL MPX circuits. Cassette handling is really a “super snap” thanks to the front-loading tape mechanism with built-in automatic stop. Built-in Dolby reduces tape hiss and noise in the high frequency range.

PIONEER A-200 (1983) - Real Dynamism Amplifier

 

Brand: PIONEER

Model: A-200

Year: 1983

The A-200 (A-90) is a DC-servo Dynamic Power Non-Switching amplifier. Dynamic Power Supply provides low power supply voltage to the output transistors during soft passages for higher efficiency and reduced power loss. But when the sound becomes louder, the high voltage power supply comes into action to provide sufficiently high drive voltage to the output transistors, thus preventing clipping.The Dynamic Power Supply is twice as efficient as conventional class-B amplifiers. This is why the A-200 can deliver a remarkable 200 watts per channel without strain, and without requiring a heavy duty heat sink or a huge power supply.  

Continuous power: 2X200W (8ohm, 10Hz to 20kHz, both channel driven)

Total Harmonic Distortion: <0.002%

Frequency Response: 5Hz-65KHz (IHF, both channel driven, THD 0.01%)

Dimensions (WxHxD): 420x150x420 mm

Weight: 19 kg

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NEC VC-BS950 (1989) - S-VHS Parabola Video

 

Brand: NEC

Model: VC-BS950

Year: 1989

This NEC video recorder from 1989 is capable of making video recordings in S-VHS quality with Hi-Fi Stereo sound. Additionally it features a built-in satellite tuner which requires an additional external antenna (Parabola). Satellite broadcasting can be combined with terrestrial broadcasting and schedule recording on tape. The newly developed sattelite tuner features a 8x oversampling 18-bit digital filter/18-bit twin DAC with direct digital audio output (optical/coaxial). Other features include: New double azimuth 4 head/Small head/New preamplifier unit/New impedance roller/Audio dedicated stabilized power supply circuit, FE (Flying Erase) head, Digital special playback (digital memory/digital still/digital, Jet search (up to 27x speed), Real-time counter, Headphone output (with volume), Polarized power cord.

PHILIPS DSS930 (1993) - Digital Speaker System

 

Brand: PHILIPS

Model: DSS930

Year: 1993

Philips has been known as a pioneer of active loudspeakers since the early 70s with their MFB model range. The DSS930 takes the active loudspeaker concept a step further...into the Digital age. This is a 2-way 3-speaker system with built-in bi-amplifier and four built-in DAC converters for the woofer and tweeter. They will only accept as input signal Digital sources via Digital input. While they can be operated directly, with a dedicated remote controller, from a Digital source such as CD player, DCC or Laserdisc it is best to be used with the matching DSC950 system controller. This will accept both analog and digital sources but it will transmit the signal to the loudspeakers in digital form. The system is using a chain connection method meaning that you will connect the controller to one loudspeaker and then the signal goes further from this speaker to the next. This way you can build a multiroom system with up to 6 pair of speakers. Each loudspeaker has a set of switches at the back to select their operation mode, Left or Right channel and Room A, B or C. 

Technical Data:

2-Way 3-Speakers 

Power: 80W bass + 20W tweeter

Frequency Range: 50Hz-20.000Hz

Woofer: 14cm x 2

Tweeter: Philips Isophase ribbon tweeter

Dimensions: 220x575x325mm (WxHxD)

Weight: 16kg

Optional speaker stands: FV 105 and FV 110.

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YAMAHA City Core 7 (1983) - Compact HiFi System

 

The City Core 7 was the biggest model of this compact hi-fi series introduced by Yamaha in 1983. From top to bottom this system consisted of a Fully Automatic Direct Drive turntable, Quartz PLL tuner with 7 presets, 60W/ch stereo amplifier with a THD of 0.025%, microcomputer control for auto function and electronic volume with 7 presets, graphic equalizer with subsonic filter and spatial expander, full logic controlled cassette recorder with drawer loading, real time counter and 20 track music search. The matching loudspeaker was a 2-way bass-reflex model with 18 cm woofer and 3,8 cm tweeter. Typical dimension of a unit is 340x60x252 mm (WxHxD). 

kencraft GA-800 (1975) - DIY amplifier kit

 

Brand: kencraft

Model: GA-800

Year: 1975

Building your amplifier has never been so easy... During the 70s most manufacturers offered various audio components in kit form for you to build. This kencraft GA-800 amplifier was offered as a kit by Trio-Kenwood of Japan in 1975. With the exception of parts that require adjustment, such as the power stage, which are mounted on a printed circuit board in advance to ensure basic performance, it all came in bits and pieces.

Continuous power: 2X38W (8ohm, 20Hz to 20kHz, both channel driven)

Total Harmonic Distortion: <0.03%

Frequency Response: 15Hz-45KHz (+0.5/-2dB)

Damping factor: 32(8ohm)

Dimensions (WxHxD): 398x136x300 mm

Weight: 7 kg

Sold separately: GW-8S wood side panels (2 sheets, 1 set)

DENON DRS-810G (1991) - 3-Head Cassette Deck

Brand: DENON

Model: DRS-810G

Year: 1991

The DRS-810G adopts a horizontal tape mechanism that is considered ideal for rotating systems. It enables stable running with little rotational unevenness and achieves extremely high quality recording and playback performance. In addition the DRS-810G also features a cassette stabilizer and a CCCT (ceramic composite cassette tray). It is equipped with 3 heads (with die-cast head base), "closed loop dual capstan system" and a highly reliable computer controlled "silent mechanism". The DRS-810G is eqipped with Dobly HX Pro and Dolby B/C noise reduction.

Technical Data:

Head: 3-Head Hard Permalloy 

Motors: 4 motor Dual Capstan (capstan/reel/actuator/loading)

Dolby B-C, HX-Pro

Frequency Response: 20Hz to 20kHz±3dB (Metal tape)

Wow and Flutter: 0,038% (WRMS)

Dimensions (WxHxD): 470x122x320mm

Weight: 7,4kg

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SONY PCM-HF10 (1985) - PCM Hi-Fi Stereo

Brand: SONY

Model: PCM-HF10

Year: 1985

Enjoy your dream digital recording with the ease of a cassette deck. Professional quality is now so accessible. A PCM processor and a video deck are combined into one. With the PCM-HF10, you can enjoy digital recording using the same method as compact discs (14-bit format, dynamic range of 85 dB or more, harmonic distortion of 0.007% or less) as easily as using a cassette deck. With a width of 355mm, all you have to do is connect it to your amplifier, just like you would a do with a cassette deck. All this combined with Sony's unique Hi-Band Beta hi-fi video system guarantees a fully immersive audio-video experience. External dimensions: Width 355 x Height 95 x Depth 348mm | Weight: 9.2kg

 

ReVox BX350 (1978) - Linear Phase Loudspeaker

 

Brand: ReVox

Model: BX350

Year: 1978

Linear phase system. The unique shape of the new ReVox loudspeaker plays an important functional role. The staggered loudspeaker arrangement compensates for the different response times of the various drivers and restores the original phase position within listening distance. This will give excellent impulse reproduction and therefore clean transient response and increased transparency in the width and depth of the sound image. To improve bass reproduction, ReVox came up with something unconventional: four small bass drivers instead of one large one. For bass and mid-range there are four long-throw woofers, each of which has a diameter of just 122 mm. The advantage of this solution: lower distortions, because the individual membranes only have to make comparatively small deflections. Because of the low moving mass of the individual chassis, even medium frequencies can be radiated cleanly. With this concept, ReVox was able to do without a separate midrange driver and design the BX350 as a two-way speaker. The four low-midrange drivers cover the entire frequency range up to 3200 Hertz. This is where the dome tweeter comes in. Revox engineers therefore installed the four woofers on a slightly concave baffle: Each of the four systems radiates in a different direction, which is intended to significantly improve the omnidirectional radiation behavior in the mid range. In order to avoid phase shifts, the four cone speakers and the tweeter are mounted so that the front edges of all voice coils are in one plane.

Technical Data:

2-Way Closed 

Music power: 100 W

Nominal power: 80 W

Frequency Range: 30Hz-20.000Hz

Impedance: 4ohm

Bass-mid: 4x122 mm Rubber surround, die-cast chassis

Tweeter: 25 mm dome

Dimensions: 350x520x295mm (WxHxD)

Weight: 14kg

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PHILIPS System 900 (1978) - Hi-Fi Stereo System

 

Back in 1978 if you wanted a Top Hi-Fi setup, the "System 900" from Philips might have been just what you were looking for. This 482mm wide Hi-Fi system featured the following components: AH 798 AM-FM Quartz PLL Synthesizer Stereo Receiver with remote control and 40W/ch power rating (see here the one in the 1001hifi collection), N 5846 Metal tape capable cassette deck with a unique "Micro Computer" track programming system and a fabulous mechanism, just like the one used by it's sibling, the 3-head N 2552 seen here. All these were installed in the AH 009 rack that also hold on top of-it the AF 829/II front control turntable. Matching loudspeakers were the AH 489. 

AKAI PS-200 (1979) - Stereo Pre-Power Amplifier

Brand: AKAI

Model: PS-200C | PS-200M

Year: 1979

The PS-200C preamplifier is characterized by the following properties: The entire signal path is designed using DC differential amplifier technology. The same applies to the phono amplifier, which makes it possible to connect a moving coil pickup system (3-phono inputs). For optimal adaptation to all commercially available pickups, the input impedance of the phono amplifier can be switched between 33, 47 and 100 kOhm. Together with the existing ground terminals, this results in an excellent performance with hum-free phono reproduction. The 250 W/channel professional PS-200M power amplifier, like the PS-200C preamplifier, is designed using DC differential technology. Twin power transformers supply power for this dual mono construction model. Two large power (watt/dB) indicators together with a 9-step peak-power LED display provides information about the power output. There are also electrical protection circuits for overloads, speaker defects or cable short circuits to protect the expensive output transistors. A subsonic filter prevents low-frequency interference caused by record treble or rumble.

AKAI PS-200M

Continuous power: 2X230W (8ohm, DIN)

Total Harmonic Distortion: <0.008%

Frequency Response: DC-100kHz 

Signal to noise: 115dB

Dimensions (WxHxD): 440x200x430 mm

Weight: 29 kg

PS-200C

Dimensions (WxHxD): 440x90x457 mm

Weight: 7.5 kg

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ReVox B21 (1994) - 3-head cassette deck

Brand: ReVox

Model: B21

Year: 1994 

The B21 was the last component to be added to the Emotion series from ReVox. While this model still uses a 3-head configuration dual capstan mechanism, this time this assembly was not built by ReVox, instead it comes from ALPS-Japan. Also the Auto Align calibration only performs BIAS adjustment. A clean, uncolored and low-noise sound can be obtained by using two-layer Type II cassettes. 

Technical Data:

Head: 3-Head 

Motors: 2 motor Dual Capstan

AUTO ALIGN calibration computer

Dolby B-C, HX-Pro

Factory settings are made for: 

TDK AR-X, BASF Chrome Super II, TDK MA-X

Frequency Response: 30-18.000Hz (Normal)

    30-20.000Hz (Chrome)

    30-20.000Hz (Metal)

Wow and Flutter: 0,1% (JIS, playback)

Dimensions (WxHxD): 440x127x367mm

Weight: 8,5kg

Original sale price: 2000 DM - Germany

Available in silver and black.

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SANYO VZ-CS50 (1989) - S-VHS Hi-Fi Stereo

 

Brand: SANYO

Model: VZ-CS50

Year: 1989

In order to unleash the full potential of S-VHS, it is necessary to develop technology specifically for S-VHS, rather than taking-it as an extension of conventional VHS technology. Based on this idea, Sanyo focused on the chassis structure, which affects image and sound quality. A mid-mount system has been adopted. By locating the core mechanism in the center of the body, the influence of external vibrations is minimized, and at the same time, vibrations generated by the mechanism itself are distributed almost equally to the insulators at each corner and absorbed. By fundamentally improving the system design, was possible to achieve a high level of stability in tape running, which determines image and sound quality at the most fundamental level. Also Brass impedance rollers are installed on both the inlet and outlet sides of the cylinder, which are particularly effective in reducing screen distortion and color shift caused by unstable tape running. The large diameter impedance roller of 18mm on the inlet side reduces the low-frequency jitter component that mainly appears as large vertical line undulations, while the small diameter impedance roller of 10mm on the exit side reduces the small flickering undulations around 1kHz. The adopted S-VHS system offers high image quality aided by Digital noise reduction, digital tracking. For an audio dynamic range of 90 dB the Stereo Hi-Fi system was adopted. There is even more, the VZ-CS50 also features built-in satellite receiver, jog-shuttle control, "picture creative" color and sharpness control, title generator, flying erase head, insert dubbing, digital multiscreen. Stereo audio is also transmitted from the VZ-CS50 to the remote control where you can connect your headphones.

Denon SC-1200 (1984) - Studio Monitor

 

Brand: Denon

Model: SC-1200

Year: 1984

High quality, high-performance loudspeaker. Not what you'd first think of if, you mention the name Denon. The SC-2000 presented here was made by Denon in 1984 using a loudspeaker manufactured by "Gauss America". Gauss was an American (U.S.A.) speaker manufacturer founded by former retired JBL employee (Bert Loncansey, Ed May). This is however not the first Denon "Studio Monitor" nor the first cooperation between Gauss and a Japanese manufacturer (more baout this later). Anyway, the model presented here is using a Gauss 3588 coaxial 2-way unit. The woofer section is using a specially treated paper cone with multi-corrugations and a diameter of 38cm. The high frequency unit is a horn-shaped unit with a unique curved horn designed by computer design...with a a 50mm diaphragm. This coaxial unit provided excellent localization , and it also had the characteristics of a monitor speaker.

Technical Data:

2-Way Bass Reflex 

Max. Input: 200 W

Frequency Range: 30Hz-20.000Hz

Impedance: 8ohm

Woofer: 38cm Pure coaxial type

Dimensions: 590x960x454mm (WxHxD)

Weight: 66kg

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TEAC Sound Core (1989)

 

Relax and enjoy music. This is what the Sound Core Hi-Fi system is all about. Introduced by TEAC in 1989 the Sound Core system comprised three models the a-1, a-2 and a-3. The SOUND CORE series is a new form of audio system that was recommended to "modern people who are interested in both quality and design". The original promotional brochure also said that this is a: "Stylish European design that blends elegantly into your interior". The amplifier section of the a-1 model was 50W/ch, the a-2 was 30W/ch while the a-1 was 20W/ch. Only the a-1 and a-2 models featured auto-reverse cassette recorders but all models featured a CD player. The TZ-1 "AV furniture" was available separately, while the system had a wide range of loudspeakers available. First there was the TEAC Sound Core S-5 "designer model" and the S-100 but there was also a Tannoy Eclipse and a Mordaunt Short MS-35G available as additional units. The Sound Core systems had their dedicated remote controllers too, the RC-11 for the a-1 and a-2 models and the RC-33 for the a-3 model.    

KENWOOD KA-3300D (1987)

Brand: KENWOOD

Model: KA-3300D

Year: 1987

The KA-3300D Digital Integrated Amplifier was introduced by Kenwood in 1987. As response to the growing popularity of CD, the KA-3300D features a built-in D/A converter that will accept Digital signal from a CD player via a optical or coaxial cable. The D/A converter section consists of a 4x oversampling digital filter, left and right independent ladder network type D/A converters, and a 7th-order Butterworth FDNR type discrete low-pass filter. Additionally, in order to support digital sources that use different sampling frequencies, it has a built-in PLL data demodulator that automatically switches the clock (synchronization) frequency between 32kHz, 44.1kHz, and 48kHz. The amplifier section uses a Dynamic Linear Drive (DLD) circuit. This circuit employs two amplifiers, a low-power amplifier and a high-power amplifier. This allows a far better control of loudspeaker load fluctuations. The amplifier also features a New VIG (Voltage Interface Gate) circuit that interfaces the amplifier section and the power supply section. In addition, by keeping the voltage between the base and emitter of the power transistor constant, the VIG circuit suppresses the phenomenon in which fluctuation components generated by the power stage of the amplifier affect the pre-driver stage and driver stage. This allows for smoother signal transfer between the driver stage and the driver stage, enabling purer signal amplification.

Continuous power: 2X150W (8ohm, 10Hz to 20kHz, both channel driven, THD 0,004%)

Total Harmonic Distortion: <0.004%

Frequency Response: 5Hz-50KHz (THD 0.04%)

Damping factor: 1000(50Hz into 8 ohms)

Dimensions (WxHxD): 440x170x420 mm

Weight: 19,1 kg

Original sale price: 2500 DM in Germany. 

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