DENON PMA-780D (1987) - Stereo Integrated Amplifier

 DENON PMA-780D (1987) - Stereo Integrated Amplifier

Brand: DENON

Model: PMA-780D

Year: 1987

The PMA-780D was a completely new type of integrated amplifier equipped with a digital multi-interface circuit and a D/A converter circuit that directly receives music information sent from CDs, DAT, DBS (PCM satellite broadcasting), etc. as digital signal. This unit is equipped with 3 digital input circuits and automatically selects the sampling frequency of CD, DAT, and DBS. Furthermore, it is equipped with a double super linear converter circuit that uses a high-precision digital filter and independent D/A converters for left and right channels, converting it into a pure audio signal and directly driving the power amplifier. The amplifier section is equipped with a super non-feedback power amplifier that boasts high speed, and a pure dynamic power circuit that uses a powerful power transformer, dramatically improving instantaneous power supply capability and delivering unwavering high dynamic power of 350W + 350W/2Ω. Furthermore, it is equipped with a wealth of functions such as a phono equalizer amplifier, a processor loop, and three recording/playback terminals.

Continuous power: 2X110W (8ohm, 20Hz to 20kHz, both channel driven)

Total Harmonic Distortion: <0.004%

Frequency Response: 5Hz-100KHz (IHF, both channel driven, THD 0.5%)

Digital Audio Interface for CD, DAT, DBS (PCM satellite)

Total harmonic distortion 0,0025%

Signal to noise: 105dB

Dynamic range 96dB

Dimensions (WxHxD): 434x172x396 mm

Weight: 15,6 kg

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DUAL C 839 RC (1979) - Auto Reverse Cassette Deck

 

Brand: DUAL

Model: C 839 RC

Year: 1979

The C 839 RC was the Top model in the 1979 Dual cassette deck range (above the C 830 3-head model). It was not however Duals' first Auto Reverse model. The very first Dual cassette deck was the C 901 from 1973 and it was an Auto Reverse model, see details here. The Dual C 839 RC is a New generation Auto-Reverse model. In recording and playback, the tape reverses automatically and it stops at the end of the second side. (Reversing can also continue indefinitely if desired). You will notice that there is no door between you and the cassette compartment. This is called DLL - Direct Load & Lock. Here's another innovation in playback. If a tape made on another deck is too sharp or too flat, or if you need to match pitch to a live instrument, no problem. Playback pitch can be varied over an eight percent range. If you have a previously recorded tape where a song ends abruptly you can use the fade/edit control to smooth this out. The incorporated peak-level LED indicators react faster than any other metering system. Further more the C 839 RC from Dual is full Metal tape compatible, features 6-way bias/equalization, computer logic solenoid-activated controls, switchable multiplex filter, line and mic mixing, two-way memory stop with automatic replay, headphone level controls and operation by external timer and optional wireless remote control.

  

Technical Data:

Head: 2-Head AUTO REVERSE

Both-way Dual capstan operation

Motors: 2

Dolby B

Frequency Response: 30-18.000Hz (Normal)

    30-19.000Hz (Chrome)

    30-19.000Hz (FeCr)

    30-20.000Hz (Metal)

Wow and Flutter: 0,03% (WRMS)

Dimensions (WxHxD): 440x150x360mm

Weight: 8,5kg

Available in silver and metallic-brown

Made in Germany

Original sale price: 1.298 DM (Germany), US$850

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TOSHIBA Diomage VS1 (1989) - S-VHS Hi-Fi Stereo VCR

 

Brand: TOSHIBA

Model: A-VS1

Year: 1989

Equipped with Toshiba's original high-precision digital editing function Diomage VS1, the precision of editing rivals that of professional digital video effectors. It allows title insert by video scanner, handwritten text included. Combined with true high image quality that fully brings out the clear images of S-VHS it will show you a completely new world of excitement. Hi-Fi Stereo audio recording with manual record level control and "professional" needle type VU meters completes this high class recorder. Original sale price: ￥262,200

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SONY SS-GR1 (1991)

 

Brand: SONY

Model: SS-GR1

Year: 1991

Just like the distortion figure and signal-to-noise ratio cannot tell everything about an amplifier, it is no exaggeration to say that when it comes to speakers, there is no "measurement" to begin with. However, it is also true that speakers that produce good sound are based on solid know-how. The SS-GR1 is a speaker system that focuses on implementing the know-how that has been continuously cultivated by Sony. It was sought an overall structure that would not make even the weakest sounds generated from the enclosure harmful. That is the RC (Resonance Control) frame. A large, sturdy wooden frame is installed in the inside of the enclosure, and this serves as the framework of the enclosure where the front and back baffles are connected. A super oval enclosure that prevents directivity disturbance and achieves a natural sound localization feeling was adopted using a technology that is also used in the molding of the side plate of a grand piano. The three CD horns (Constant Directivity) are machined from the front baffle.

Technical Data:

4-Way Bass Reflex

Max. Input: 300 W

Nominal Power: 100 W

Frequency Range: 25Hz-35.000Hz

Impedance: 6ohm

Woofer: 30cm polyamide fibers and pulp mixed

Midrange: 10cm polyamide mixed pulp + SiC* balanced drive

Tweeter: 3cm SiC* dome

Super Tweeter: 2cm Bio-Cellulose dome

Dimensions: 544x1026x445mm (WxHxD)

Weight: 75kg

*SiC: Silicon Carbide

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DENON CONCEPT D-7 (1989)

 

The D-7 was the biggest model of the Concept Series from Denon and it was introduced in 1989. The system consists of a dual auto-reverse cassette deck with manual recording level adjustment and fluorescent display, stereo amplifier with optical Digital input, stereo tuner, 7-band graphic equalizer with spectrum analyzer and 2x6 memory system, compact disc player and another mysterious box. This large component looks like a power amplifier but is actually a - and I'm quoting: "Active Drived Woofer System - Its sound is so natural and dynamic". So this is a twin woofer box the size of a larger midi component. The components cannot be used individually as each component uses a dedicated and unique power/signal cable to be connected to the amplifier. The matching loudspeaker system is a 3-way - and I'm using another quotation of the text written on the front: "Active air suspension and Bassreflex speaker system". As expected, the whole system can be remote controlled with a dedicated infrared hand-held remote controller. 

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PIONEER A-90D (1987)

 

Brand: PIONEER

Model: A-90D

Year: 1987

The A-90D "Pure Pioneer Components" stereo integrated amplifier has a built-in D/A converter and an elaborated internal construction. The Digital input/output section includes two optical inputs and one optical output system. The DAC section is equipped with a D/A converter for each channel (L/R) to eliminate phase difference. In order to thoroughly suppress vibrations a unique honeycomb frame chassis has been adopted. In order to eliminate electromagnetic distortion and reduce vibration, copper plating is used for the rear panel, bottom plate, transformer frame, speaker terminal block shield case.

Continuous power: 2X120W (8ohm, 0,003%)

Total Harmonic Distortion: <0.003%

Dimensions (WxHxD): 457x173x475 mm

Weight: 29,3 kg

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AKAI CS-F33R (1981)

 

Brand: AKAI

Model: CS-F33R

Year: 1981

The CS-F33R Quick Reverse Deck is the fifth generation of a reverse deck from Akai. The quick reverse mechanism eliminates the need to change the cassette during recording, making it possible to record both sides without sound interruption. It also allows for endless playback from side A to side B and from side B to side A. The reverse mechanism is equipped with a quick reverse system using an infrared tape sensor developed by Akai. After the end of the magnetic tape segment, the infrared tape sensor detects the leader tape and the reverse mechanism is activated immediately, resulting in a quick reverse time of only 0,4 seconds. The CS-F33R can also be remote controlled with the RC-21 wired remote controller sold separately. For "Timer Start" an external audio timer is needed such as the DT-120 (or other models).

Technical Data:

Head: 2-Head System Quick-Reverse (0,4 sec.)

HD (High Density Sendust) record/playback head + 2 erase heads

Motors: 2

Dolby B

Frequency Response: 30-16.000Hz (Normal)

    30-16.500Hz (Chrome)

    30-18.000Hz (Metal)

Wow and Flutter: 0,04% (WRMS)

Dimensions (WxHxD): 440x118x270mm

Weight: 7,5kg

Available in silver and black

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National NV-FS1000 (1988)

 

Brand: National

Model: NV-FS1000

Year: 1988

The NV-FS1000 is a S-VHS format VCR with a horizontal resolution of over 400 lines, Hi-Fi Stereo sound, jog/shuttle control and advanced editing functions. The Jog/shuttle search allows you to quickly find editing points and it can be controlled in both forward and reverse directions, from standstill to high-speed search. The Flying erase head allows for beautiful transitional editing. This suppresses noise and image disturbances in picture insert. Automatic editing function allows you to send only the necessary scenes to another video. The insert dubbing function allows you to insert other images and sounds into a recorded tape. The 5P socket allows connecting an external editing controller like the WM-EC200 or EC300. (National was a Matsushita Electric -today Panasonic - trade name)

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GRUNDIG MONOLITH 8500 (1988)

 

Brand: GRUNDIG

Model: MONOLITH 8500

Year: 1988

The Monolith 8500 from Grundig was introduced in 1988 however the same model was available since 1986 and it was initially simply called Fine Arts. The shown model is the luxurious real wood veneer version but there was also a black version with the same specifications. 

Technical Data:

3-Way Closed

Max. Input: 150 W

Nominal Power: 100 W

Frequency Range: 25Hz-25.000Hz

Impedance: 4ohm

Woofer: 24,5cm Cone

Midrange: 3,7cm Dome

Tweeter: 2,5cm Dome

Dimensions: 330x530x310mm (WxHxD)

Weight: 15kg

Available in Black or Real Wood veneer

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PIONEER WAVE 919 (1989)

 

Brand: PIONEER

System: WAVE 919

Year: 1989

The WAVE 919 from Pioneer is an advanced laser system compatible with CD, CDV, and LD while the VCR of this system features Hi-Fi Stereo recording. A series of digital picture memory functions allow picture in picture viewing, 12-screen multi display, still images. The amplifier has a power rating of 80W/ch with extra 7W/ch for Dolby Surround. The loudspeaker system is a vertical twin 2-way system with 14cm bass-mid, high-quality ceramic carbon dome tweeter and magnetic shielding. The multi-function remote controller is a programmable model. 

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BASF High-Fidelity (1981)

Brand: BASF

Model: D 5060

Year: 1981

The D 5060 HiFi Digital Synthesizer Receiver was introduced to the German market by BASF in 1981. The amplifier section of this unit features a 60W/ch amplifier section with a so called "Heat-Pipe-System", a power amplifier cooling system that was popular during the early 80s. The radio section of the unit is a Quartz-PLL-Synthesizer construction with 6-Preset stations while the amplifier section has all electronic volume, bass, treble and balance control. This unit was of course not manufactured in Germany. Who's the misterious manufacturer? Follow closely 1001 Hi-Fi for the secret to be revealed.  

Continuous power: 2x60W 8ohm

Total Harmonic Distortion: <0.05%

Frequency Response: 10Hz-65KHz

Damping factor: 50(10Hz-20kHz, 8ohm)

Dimensions (WxHxD): 425x100x360 mm

Weight: 10,5 kg

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AKAI GX-F80 (1979)

 

Brand: AKAI

Model: GX-F80

Year: 1979

The GX-F80 from Akai was introduced in 1979, with the list price of $ 550. In addition to improving the reproduction quality of whatever tape you use (New Metal tapes included), the new Super GX head presents a great many advantages. Superior low noise sound, a dust resistant characteristic for precise head-to-tape contact, and an extremely hard surface that ensures an unusually long life span equivalent to 17 years of non-stop play. The GX-F80 is a basic but robust 3-head cassette recorder featuring a 2-motor belt-drive transport system with one capstan in a illuminated feather touch full logic solenoid operated mechanism. The Feather-touch, sensor-light controls are a unique feature that was only used on the GX-620/625 reel-to-reel tape recorders and the GX-715II model. A two-tone fluorescent VU meter with Peak +3 and +8 dB reading together with the A.D.R.System (Automatic Distortion Reduction System) contributes to best possible recordings from any source. The GX-F80 can also be remote controlled with the optional RC-18, RC-17 or RC-70 remote controllers.

Technical Data:

Head: 3-Head Super-GX

Motors: 2 motor

Single Capstan

Dolby B, ARDSYSTEM

Frequency Response: 25-15.000Hz (Normal)

    25-17.000Hz (Chrome)

    25-17.000Hz (FeCr)

    25-21.000Hz (Metal)

Wow and Flutter: 0,035% (WRMS)

Dimensions (WxHxD): 440x135x340mm

Weight: 8,9kg

Original sale price: $550

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Panasonic NV-FS65 (1989)

 

Brand: Panasonic

Model: NV-FS65

Year: 1989

The FS65 from Panasonic places a special focus on Hi-Fi audio recording. It is equipped with needle-type VU meter and separate left and right record level knobs but also independent audio transformer & high-speed active power supply. NEW high-speed switching circuit reduces switching noise. A High speed limiter improves sound rise and treble extension while Linear bandpass filter adds more clarity to sound. The FS65 features a vibration damping design with high mass side panels and insulators. The video section of the FS65 features a horizontal resolution of over 400 lines in S-VHS mode and it is equipped with Panasonics GT4w High Energy heads. For added visual comfort the VU meter and it's backlight can be turned off during video entertainment. The supplied remote control is also equipped with a jog shuttle control for accurate video frame search. An additional scanner "pen" is supplied for programming the VCR using barcodes published by TV magazines for each show.

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SANYO SX-Z3000 (1990)

 

Brand: Sanyo (Fisher)

Model: SX-Z3000 (STE-555)

Year: 1990

The main feature of the SX-Z3000 from Sanyo is the Twin-Drive woofer system. This is a completely new type of speaker using a completely new method that uses two drive units installed in front and behind of the the flat diaphragm to drive-it in a push-pull manner. When one drive unit pushes out the diaphragm, the other one pulls it in, and vice versa. This new woofer design uses drive energy more efficiently equalizes uneven magnetic flux density, equalizes the damper's diaphragm control force, and eliminates rolling phenomena, resulting in significantly improved linearity. This method makes possible to achieve lower distortion and less heat generated. For maximum rigidity all the elements are mounted in a aluminum die-cast frame. The cabinet is made of high-density particle board with rounded edges for less diffraction. As a result of Fisher being owned by Sanyo another version was sold as Fisher STE-555.

Technical Data:

3-Way Bass Reflex

Music Power: 300 W

Nominal Power: 10 W

Frequency Range: 25Hz-40.000Hz

Impedance: 8 ohm

Woofer: 32 cm Flat-Honeycomb Twin-Drive 

Midrange: 13cm Hybrid Dome-Cone

Tweeter: 2,5cm Titanium Dome

Dimensions: 421x778x520mm (WxHxD)

Weight: 51kg

Optional Speaker Stand APS-Z3000

Original sale price: 4500 DM (Germany)

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Panasonic SC-CH9 (1990)

 

Brand: Panasonic

Model: SC-CH9

Year: 1990

Now any room has enough room for a sophisticated stereo system. Meet the SC-CH9 from Panasonic part of their "Half Components" series from 1990. These are compact components that can produce the musical impact of stereos twice their size. Each component of the SC-CH9 is perfectly matched. Its CD player has 4xoversampling, CD-to-Tape editing and optimum recording level settings for the cassette recorder. It has a double auto reverse cassette deck. The amplifier features a sophisticated bi-amp technology. One amplifier is dedicated to low frequencies, the other handles high frequencies. The whole system can be programmed for on-off playback or recording operations with the help of the built-in timer. The amplifier is specified at 40W/ch while the cassette deck has a frequency range of 30-17.000Hz with Metal tape. Tipycal size of a component is 215(W)x71-110(H)x291(D) mm.

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AKAI AA-1175 (1979)

 

Brand: AKAI

Model: AA-1175

Year: 1979

The AA-1175 is a high quality stereo receiver (tuner-amplifier) that features a 2-power supply system, bass/midrange/treble controls, high and low filter switches, loudness switch, variable FM muting circuit in a larger than usual housing for an impressive look and performance. It was available in with both silver and black front.

Rated Output Power: 2X75W (8ohm, 20Hz to 20kHz)

Total Harmonic Distortion: <0.08%

Frequency Response: 6Hz-50KHz (THD 0.08% 8ohm)

Dimensions (WxHxD): 480x165x440 mm

Weight: 16,5 kg

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JVC KD-D55 (1982)

 

Brand: JVC

Model: KD-D55

Year: 1982

The KD-D55 was part of the so called DELTA Series introduced by JVC in 1982. The Japanese market version, Victor KD-D55 was introduced in 1981. This is an entry level 3-head model with a one motor belt-drive transport from Sankyo, ANRS and Dolby B-C noise reduction that was also equipped with a Multifunction Digital Counter. This display can operate in simple counter mode, remaining time counter but it will also display the selected track number for the music search system.  

Technical Data:

Head: 3-Head (Metaperm)

Motors: 1 motor

Single Capstan

ANRS/Dolby B-C

Frequency Response: 20-17.000Hz (Normal)

    20-18.000Hz (Chrome)

    20-18.000Hz (Metal)

Wow and Flutter: 0,05% (WRMS)

Dimensions (WxHxD): 435x109x280mm

Weight: 5,5kg

Other: Music Scan up to 20 track, Remaining Time counter

Original sale price: $380 | 980DM

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