NIKKO Soundruler 10000 (1975)

 

This is a truly unique pre-power amplifier setup introduced by Nikko in 1975. The Soundruler P-10000 is a Class-A operation power amplifier with an effective output of 60W/ch. Frequency response is 20Hz to 100kHz and distortion is 0.2% at effective output. Size of the unit is 460x400x195mm (WxHxD), weight: 20kg. The matching preamplifier was the Soundruler C-10000.

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DENON DP-52F (1982) | Dynamic Servo Tracer

 

Brand: DENON

Model: DP-52F

Year: 1982

To function as an essential part of a true high fidelity reproduction system, a turntable must maintain sufficiently stable rotational performance in spite of load changes taking place during the course of play. To accomplish this, DENON's DP-52F use as drive motor , the core of the rotation system, a highly sophisticated AC servo motor. This motor is virtually free from "cogging" and thus deliver a high signal-to-noise ratio in addition to the highly precise rotation. DENON's Quartz Phase Locked Loop offers extremely low wow and flutter even in the presence of warped records and large variable loads. DENON's Dynamic Servo Tracer system, working in concert with a Denon high-precision, ultra-low mass tonearm effectively supreses resonances while providing the proper damping for the widest variety of cartridges. Damping, anti-skating and tonearm lift/located are all applied through microprocessor-controlled non-contact electronics. 

Technical data:

Type: 2-speed Fully Automatic 

Motor: Quartz Direct-Drive AC-servo

Platter: 30cm diameter, Aluminum Die-Cast

Wow & Flutter: 0.01% WRMS

Signal-to-noise ratio: 78dB (DIN-B)

Tonearm: Dynamic balance type, light weight straight tonearm 

Effective tonearm length (total length): 244mm 

Dimensions: 455x130x424 (WxHxD)

Weight: 9kg

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STRASSER DS-F1 (1989) | The Sound of The Future

 

The Strasser F1 is a High Quality midi hi-fi system introduced as a top model in 1989. This sound system features: CD, DAT, BS3 digital direct input amplifier with optical link, BS via coaxial - High-power 4-amplifier configuration with a total output of 90W+90W (75W+75W, EIAJ) and surround output of 15W+15W - Full logic twin cassette using AMTS, playback reverse + recording/playback quick reverse with Dolby B/C NR and High-quality amorphous head used - Newly developed carbon-refined polypropylene, 26cm woofer in a magnetically shielded speaker system - BBE texture processor that creates sound that you can almost touch - DSL with dynamic deep bass - 4-mode DSP surround: Dolby Surround, Hall, Theater, and Manual - Independent left and right spectrum analyzer with 5 memory functions and 7-element electronic graphic equalizer - Various play and edit functions let you enjoy CDs up close and personal - Disk file that shows titles on the display of the CD player and allows you to program and store track order - CSRS for simple and optimal CD recording - Digital synthesizer tuner with preset name display + independent clock display - 3-mode timer: ONCE/EVERY/SLEEP - Fade-in wake-up volume that is small at night and gradually gets louder in the morning - Full remote control - Each unit is completely separate, allowing for horizontal layout. Optional components: Fully automatic D.D. player LX-F1B - Surround speaker SX-M100B. Strasser is a special series of audio components from Aiwa.

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DENON PMA-890DG (1989) | Real time audio technology

An integrated amplifier equipped with real 20bit SLC D/A converter and optical Class A circuit. The D/A converter is a real 20bit super linear converter with independent left and right channels. It receives a 20bit 8x oversampling signal made by a digital filter and performs excellent D/A conversion. In addition, the difference in sampling frequency such as CD, DAT, and satellite broadcasting is automatically identified by the digital multi-interface circuit. Furthermore, the internal clock required for demodulation is made into a powerful 2PLL configuration to eliminate the influence of jitter (temporal fluctuation of digital signals). The PBS (Penta Block Separated) chassis structure, which separates the inside of the amplifier into 5 blocks for each basic circuit, is adopted, preventing the magnetic flux of the power block, the digital block, and the digital noise of the display block from jumping into other circuits. The power amplifier section is newly equipped with an optical Class A circuit. This circuit is a Class A circuit using optical elements to transmit the control signal sent from the bias control circuit to the bias circuit, eliminating mutual interference between the main signal system and the bias control circuit. The voltage amplification stage, which is important for driving the power amplification stage, is a three-stage differential amplifier, and the first stage adopts an extremely low-noise FET to achieve low noise and DC amplification, and the final stage of the power amplifier uses a high-speed, large-capacity transistor of Pc80W in parallel push-pull. The power supply section has improved instantaneous response capability. The power transformer adopts a 6.3kg heavy-weight large-scale shielded power transformer, and is equipped with a high-class, large-scale rectifier and electrolytic capacitor, as well as a 2-2 pure dynamic circuit that blocks power noise. It is equipped with a wide-range MC/MM equalizer amplifier that adopts a DC servo system and a source direct switch that can directly connect all input sources to the power amplifier, wideband real-time tone control, speaker terminal switching of a protection relay system, and a reset type high-speed protection circuit. It was available in black (PMA-890D) and gold finish (PMA-890DG).

Rated output: 110W+110W (20Hz-20kHz, 8ohm)

Total harmonic distortion: 0.004%

Frequency response: 4Hz-150kHz

D/A section

Total harmonic distortion: 0.0025%

Signal to noise ratio: 105 dB

Dynamic range: 100 dB

Dimensions: 470x181x420mm (WxHxD)

Weight: 19.4kg

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PIONEER T-D7 (1997) | Wide Range Technology

 

The T-D7 cassette recorder was the last evolution of the compact cassette technology introduced by Pioneer in 1997. The combination of analog cassette and digital technology adopted by the T-D7 from Pioneer creates a rich, textured sound that goes beyond the bounds of what a cassette deck can offer. The 3-HEAD system + digital processing system delivers high quality digital sound. By adopting a 3-head system that uses dedicated heads for recording and playback, higher quality recording and playback is possible. In addition, simultaneous monitoring is possible during recording, allowing you to check the state recorded on the tape while playing it back. The digital processing system converts the music signal from analog to digital during recording and playback and processes the signal. As a result, there is less degradation of the music signal during the signal processing process, and in combination with digital FLAT and 3 heads, the performance of the tape used can be maximized to enable higher quality recording. Furthermore, during playback, digital noise reduction can be used to achieve noiseless sound up to CD-level S/N90dB, digital FLEX can correct high-frequency sounds on muffled tapes, and legato link conversion can be used to widen the bandwidth up to 40kHz, allowing you to play back tapes recorded on other decks or in the past with higher quality sound. Pioneer's new "Z-Concept" is the basis for the deck's more faithful signal processing and playback. All processes from signal detection to transmission and conversion use advanced technology, ensuring stable signal detection and accurate signal processing. The deck is also equipped with optical digital input terminals on the front and rear panels, allowing you to connect and record digital signals from CDs, MDs, etc. (Supports 44.1kHz sampling.)

Driving system: 3-Motor

Heads: 3-head system - PC-OCC Hard Permalloy

Wow & Flutter: 0.05%

Frequency response: 20-21.000Hz (Metal)

                    20-20.000Hz (Chrome)

                    20-20.000Hz (Normal)

Dimensions: 420x128x280mm (WxHxD)

Weight: 5kg

Wireless remote control included

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PIONEER P-D1 (1982) | First Pioneer CD Player

 

PIONEER P-D1 (1982) | First Pioneer CD Player

Before the introduction of the CD player all major manufacturers were working on PCM (Pulse Code Modulation) audio players for both, disc and compact cassette format. Such a model was the DAD 1516 prototype presented by Pioneer in 1982. This PCM-DAD (Digital Audio Disc) was meant to have 4 channels but the standardization of the Sony-Philips Compact Disc meant that Pioneer had to follow the new standard. As one can see, the P-D1 (the first CD player from Pioneer) kept the original design ideea of the prototype with vertical loading disc. Some of the early promotional materials still show a demo disc labelled as DAD (Digital Audio Disc) even though this was a Compact Disc format. The Compact Cassette based PCM recorder can be seen here.

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Prototype

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OPTONICA RP-9100 (1981) | Microprocessor Controlled Turntable

 

Brand: OPTONICA by SHARP

Model: RP-9100 (RP-9705)

Year: 1981

The RP-9100 is a Direct Drive Stereo Turntable with Quartz Double-Locked Motor, APMS (Automatic Programmable Music Selector) and Remote Control. This revolutionary turntable combines maximum audio fidelity with unprecedented operational versatility. Performance is optimum with a quartz double-locked servo system, Mono Torque DC coreless platter motor, direct drive, separate arm motor and J-shaped tonearm. APMS (Automatic Programmable Music Selector) then sets the listener free to program song playback order, while a full-function remote control unit and auto record size-speed selector maximize convenience. Extra advanced features include a special sensor arm, a digital speed accuracy display and soft-touch front-panel controls. It was available in silver or brown while the US market version was called RP-9705.

Technical data:

Type: 2-speed Fully Automatic with APMS

Motor: Quartz Direct-Drive 

Platter: 31cm diameter, Aluminum Die-Cast

Wow & Flutter: 0.028% WRMS

Signal-to-noise ratio: 68dB (DIN-B)

Frequency response: 10-35,000Hz Crtridge: MC, XL-333E

Tonearm: Statically balanced, tubular with APMS Sensor 

Effective tonearm length (total length): 227mm 

Dimensions: 480x135x440 (WxHxD)

Weight: 11kg

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Victor DC-Z9000 (1988) | Robot Compo World

 

The Creation DC-Z9000 was an advanced optical components system introduced by Victor (JVC) for the Japanese market in 1988 under the Robot Compo World slogan. This is a luxurious top of the line midi Hi-Fi system with wood side panels and full system remote control. First there is a CD player that transmits audio signal to the amplifier via optical digital output. In addition to the track number and playing time artist name and song title can be displayed using a word processor for manual input. The amplifier is equipped with D/A converter and it delivers 130W/ch using Victor's proprietary Class A circuit. The cassette recorder features fully independent dual quick reverse deck for recording and playback. The use of Dolby HX Pro (dynamic bias) enables high-quality recording with any type of tape. The multi-program timer tuner features 36 station preset and sleep/wake timer functions. The loudspeaker system is equipped with a 27cm cross carbon woofer with aluminum die-cast frame and amorphous diamond coated tweeter. A fully automatic turntable and SEA electronic equalizer were sold as optional components.

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ALPINE/LUXMAN K-109 (1986) | Incomparable Brid Series

 

The K-109 is the successor of the K-05/K-04/K-03 models from 1983. In 1986 when a new brand was created by Alps Electric and Lux Corporation who bought a Dokorder factory, the K-109 high-performance cassette deck was introduced. Together with the traditional attention to the unique warmth of analogue sources, is what's Luxmans' incomparable Brid Series is all about. The K-109 is featuring a High-precision mechanism for ultimate tape running, the "GT Transport". To ensure precision for the two sets of capstans and pinch rollers that firmly grip the tape, the capstan bearings and pinch roller bearings are molded as one piece with the motor frame chassis. A high-precision dual capstan system is used, which guarantees strict perpendicularity of the capstan shaft and pinch roller shaft to the chassis, and perfect parallelism between the shafts. This ensures stable tape transport and achieves an ideal tape-to-head interface. Excellent sound quality and characteristics featuring "High-performance 3-head". The K-109 employs a three-head configuration, including a combination recording/playback head. An original head was also developed specifically for this purpose. This recording head has a high maximum saturation magnetic flux density and good distortion characteristics. It is made of three laminated layers of sendust material, which is beneficial for recording high-frequency signals. The playback head employs HIP ferrite, which has excellent high-frequency characteristics. The K-109 was equipped with cutting-edge functions for the computer age, such as "Auto Monitor," "Auto Tape Selector," "Music Search," and "Time Memory." To get the best performance from your tape, you need to adjust the bias, level and equalizer to optimum parameters. The K-109's manual calibration allows you to make these fine adjustments. This is a full-fledged multi-function deck that allows you to precisely adjust the optimum values. In addition to the conventional Metal 70µs, the equalizer circuit is now equipped with a Metal 50µs position, which captures the even more vivid charm of metal tape. This new design makes it possible to reduce noise by approximately 3dB in the mid-to-high range, which is important for music reproduction.

Driving system: 3-Motor with Direct Drive dual capstan

Heads: 3-head system (Sendust record/Ferrite playback)

Wow & Flutter: 0.022%

Frequency response: 20-23.000Hz (Metal)

                    20-21.000Hz (Chrome)

                    20-21.000Hz (Normal)

Dimensions: 438x124x345mm (WxHxD)

Weight: 9.3kg

Original sale price: 2480 DM in Germany

Optional remote control: AK-10: wired remote control; AK-20: wireless remote control with receiver unit

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Panasonic LX-1000 (1991) | Multi Laser Disc Player

 

Non-stop excitement from movies and music. The LX-1000 is not just equipped with an auto-reverse function, it also has a faster reverse time, achieving a speed of just 10 seconds. A vivid and powerful image with advanced TBC and Digital Y/C comb filter. For the D/A converter, which is closely related to sound quality, we have adopted the "MASH" method, a new concept in D/A conversion that is at the forefront of current technology. In addition to improving the reproducibility of minute signals, we have adopted a noise shaving circuit to attenuate noise. This has achieved extremely high-purity digital audio reproduction with low distortion and a high S/N ratio. We have also succeeded in reducing signal errors that occur when converting digital signals to analog signals and increasing linearity. Pure audio signal transmission to audio amplifier. The optical link output terminal (on the panel) can reproduce the high-quality digital audio recorded on the disc faithfully while minimizing deterioration. Remote control Equipped with a variety of functions so that you can fully enjoy the charm of digital play. The adoption of digital field memory has made it possible to perform digital trick play such as still images of CLV (long-playing disc), visual scan, strobe, and art functions. In addition, the main unit and remote control are equipped with a jog shuttle to make it easy to make subtle adjustments. In order to easily set up your system with other AV equipment, it is equipped with a variety of AV connection terminals, such as an S-video output terminal and an optical link output terminal, as well as a wealth of functions to expand your AV enjoyment, such as a CRT volume display (only when playing CD or CDV audio), 7-mode repeat, custom index, frame counter, edit function, program function (20 songs), and LD last memory. Comes with a 48-key wireless remote control for easy operation. Type (disc format used): Laser vision video disc system, compact disc with video and compact disc, digital audio system. Power supply: AC 100V, 50/60Hz. Horizontal resolution 430 lines, video S/N 51dB Audio signal output (LV/CD/CDV output): digital audio output 200mVrms (1kHz, -20dB), analog audio output 200mVrms (1kHz, 40% modulation). Digital audio signal output characteristics - Frequency response: 4Hz~20kHz (EIAJ), signal-to-noise ratio: 110dB (EIAJ), channel separation: 110dB <1kHz) (EIAJ), dynamic range: 98dB (EIAJ), wow and flutter below measurement limit, total harmonic distortion: 0.0027% <1kHz) (EIAJ), harmonic distortion: 0.0018% <1kHz. External dimensions: Width 470 x Height 129 x Depth 429 mm. Weight: Approx. 12.5 kg. Power consumption 42 W.

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SONY PS-X555ES (1983) | Linear Tracking Biotracer

 

Brand: SONY

Model: PS-X555ES

Year: 1983

The goal of Sony's X-Series turntable system is to perfectly reproduce the music signals engraved in the record grooves. In order to get one step closer to this goal, the X-Series has been designed with a thorough emphasis on sound quality. This is embodied in the incorporation of a biotracer, the linear tracking system using active trace servos, and a solid turntable structure with three-stage blocks. In addition, the X-Series has focused on improving operability while maintaining the quality of sound. Sony has eliminated the compromise of having to tolerate some degree of difficulty in use in order to maintain the quality of sound, and have clearly separated the issues of sound quality and operability, satisfying the demands for player systems that change with the times. BIOTRACER: A tone arm that electronically controls all operations using a microcomputer that makes hundreds of logical decisions in 1/1000th of a second, speed and position detection sensors, and a linear motor. This is the Biotracer. By using this Biotracer, the low-frequency resonance peak can be suppressed to within 3dB regardless of the cartridge installed, and crosstalk is improved at the same time, resulting in excellent bass reproduction. In addition, even records with significant warping can be traced without any problems, and the audible wow and flutter is reduced, and overall sound quality improvements can be confirmed, such as sound rise, sound image positioning, dynamic range, and distortion. This Biotracer has brought about a revolution in the static tone arm that has been in use for over 100 years.

Technical data:

Type: 2-speed Fully Automatic 

Motor: Quartz Direct-Drive 

Platter: 32cm diameter, Aluminum Die-Cast

Wow & Flutter: 0.015% WRMS

Signal-to-noise ratio: 78dB (DIN-B)

Frequency response: 10-35,000Hz Cartridge: MC, XL-333E

Tonearm: Linear tracking biotracer (electronically controlled tone arm) 

Effective tonearm length (total length): 130mm 

Dimensions: 430x105x425 (WxHxD)

Weight: 7.4kg

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A&D MU-930 (1987) | Digital & Optical Interface System

 

The highlight of the MU-930 audio system from the GX Compo Series is the use of a Digital & Optical Interface System (DOISYS) as signal transmission between CD player and DAT to the amplifier. The components of the MU-930 system are: D-930/GD DAT recorder | DP-930/GD CD player | DA-U930/GD Digital integrated amplifier, 100W+100W | DA-E930/GD graphic equalizer | DA-F930/GD Quartz Synthesizer tuner | LT-930/GD fully automatic turntable and the SS-830 3-way speaker with 27cm woofer. Maximum external dimensions of the system 385(W)x625(H)x330(D), 57.35kg.

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TRIO KA-7300 (1975) | Dual Power Supply

 

Brand: TRIO

Model: KA-7300

Year: 1975

Continuous power: 2x65W (8ohm, 20Hz to 20kHz, both channel driven)

Total Harmonic Distortion: <0.04%

Frequency Response: 5Hz-60KHz 

Signal to noise: 110dB

Tone control: Bass 150Hz, 400Hz | Treble 3kHz, 6kHz

Low filter 18Hz, High filer 8kHz

Dimensions (WxHxD): 430x149x376 mm

Weight: 14 kg

Carrying handle D-7 sold separately

Original sale price: $330

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