Showing posts with label A&D. Show all posts
Showing posts with label A&D. Show all posts

29 July 2025

A&D DP-9000 (1988) | Advanced Audio

 

A&D DP-9000 CD player front panel view

While utilizing advanced digital technology, A&D strives for perfection as a tool for listening to music. The DP-9000, a prestige CD player, epitomizes the philosophy behind A&D's digital audio equipment. From powerful energy to delicate, minute signals, the purity and information content of digital sources are faithfully extracted and transformed into crystal-clear, natural music. This represents a new milestone in high-purity digital sound reproduction. The first thing you'll notice about the DP-9000 is the incredibly rigid mechanism hidden within. The chassis that forms the body is a massive U-shaped structure made of die-cast aluminum, molded into a single unit, even down to the sides. Furthermore, the bottom of the chassis features a honeycomb structure for added strength. The top panel is made of 3.2mm thick copper-plated steel. The pickup mechanism, from tray to motor, is also constructed of sturdy die-cast aluminum and directly mounted to the chassis. Unwanted vibrations that corrupt the music signal are completely shut out. And of course, mutual interference between the digital and analog sections is thoroughly eliminated, from the power supply to the construction. The power supply uses separate transformers for digital and analog, with a toroidal core transformer for the analog section to ensure high sound quality. The analog circuit board is tightly shielded in a copper-plated steel case. The purity of the required performance is maximized, and unnecessary factors are thoroughly eliminated to get to the essence. You can be sure that you will be able to feel A&D's commitment to manufacturing in the purest sound quality.

The DP-9000 features optical and coaxial digital direct outputs, enabling development into a digital link system that transmits digital signals with high purity. The D/A conversion section employs a 4x oversampling, 18-bit precision, 266th-order digital filter. With carefully selected mature digital components to prioritize sound quality. The output amplifier, located at the final stage of the analog circuit, is a discrete DC amplifier equipped with a DC servo, eliminating coupling capacitors. This uncompromising approach achieves the pinnacle of potential. The components used are carefully selected for their physical characteristics and audibility, including: a vertically mounted, disc-sized stabilized clamper to suppress unwanted disc vibrations; an A-servo system with anti-shock and anti-defect features; a large, centralized display that can be turned off while remaining partially visible; and a variety of CD player-specific playback functions, including program selection, direct selection, and repeat play.


Main Specifications: Pickup: 3-beam laser pickup; Wow and flutter: Below measurable limits; Total harmonic distortion: 0.0025% or less (EIAJ); Frequency response: 2Hz-20kHz ±0.3dB; Dynamic range: 97dB or more (EIAJ); Signal-to-noise ratio: 106dB or more (EIAJ); Dimensions and weight: 460(W) x 112(H) x 330(D) mm, 13.6 kg

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Inside view showing A&D DP-9000 internal components

Inside view showing A&D DP-9000 internal components

Inside view showing A&D DP-9000 internal components

Inside view showing A&D DP-9000 internal components



09 August 2024

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

 

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

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

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26 June 2024

A&D GX-Z7100LTD (1989) | Limited Edition

 

A&D GX-Z7100LTD (1989) | Limited Edition

The A&D GX-Z7100LTD is a Limited Edition of 2000 (Japanese market only components) to commemorate the achievement of 6 million cassette decks produced until 1989. This is a story that started in 1970 with the introduction of the First AKAI Cassette Recorder, the CS-50. The A&D (Akai & Diatone/Mitsubishi brand name) GX-Z7100LTD is based on the GX-Z7100 which in turn is the base for the better known international market models AKAI GX-95/75 from 1987. Minor schematic changes were made to the GX-Z7100LTD such as higher purity conductors, extra shielding of the supply transformer, copper plated bottom chassis and ceramic insulators. "Due to the limited production of 2000 units, there is a limited number of products, so please forgive us if they are out of stock."...

Technical Data:
Head: 3-Head System - Super GX LC-OFC wiring
Motors: 2+1 motor Direct Drive Dual Capstan
Dolby B-C HX-Pro, Manual Bias-Level
Frequency Response: 20Hz to 22kHz (Metal tape)
    20Hz to 20kHz (Chrome)
    20Hz to 19kHz (Normal)
Wow and Flutter: 0,025% (WRMS)
Dimensions (WxHxD): 460x155x350mm
Weight: 10.3kg

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A&D GX-Z7100LTD (1989) | Limited Edition

A&D GX-Z7100LTD (1989) | Limited Edition

A&D GX-Z7100LTD (1989) | Limited Edition

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18 January 2024

A&D DA-U7000 Stereo Amplifier from 1988

 

A&D DA-U7000 Stereo Amplifier from 1988

Brand: A&D
Model: DA-U7000
Year: 1988

The DA-U7000 Stereo Integrated "Digital" amplifier was sold in Japan under the A&D brand name. A&D stands for Akai & Diatone. (Diatone is a Mitsubishi brand name). For the international market this amplifier was sold as AKAI.

Continuous power: 2X120W (EIAJ, 6ohm)
Total Harmonic Distortion: <0.03% (1kHz, 8ohm)
Frequency Response: 3Hz-100KHz (+0,-3dB)
D/A Section: MASH D/A converter
Optical/Coaxial input | 32kHz, 44.1kHz, 48kHz
Dimensions (WxHxD): 425x177x452 mm
Weight: 16,3 kg


A&D DA-U7000 Stereo Amplifier from 1988

A&D DA-U7000 Stereo Amplifier from 1988

08 November 2019

AKAI DA-P9500 / DA-A9500 (1989) - The 60th Anniversary Model.

digital amplifier

To celebrate it's 60th anniversary AKAI created in 1989 a dream amplifier (sold as A&D in Japan). It was a 60 units limited edition Digital pre-power amplifier. Out of the 60 units made, 30 were sold in Europe. The AKAI DA-P 9500 pre-amplifier acts like a Digital Controller where the analog signal is converted to digital and the signal is transmitted in digital format to the power amplifier. There are 12 analog inputs, 4 digital coaxial and 4 digital optical. There is rec-out for tape, 2 vcr and 2 digital. The pre-amplifier has a digital parametric equalizer that can be controlled via the 2 way system remote. EQ settings can be easily visualized on the two way remote controllers display. Dimensions: 466x154x445 mm Weight: 19 kg
The AKAI DA-A 9500 is a 200 w/ch (FTC 20-20000Hz 8 ohm) power amplifier that has a built in D/A converter and can be used as an independent unit for digital sources and it can be controlled with it's own remote control. Dimensions: 466x214x498 mm Weight: 35 kg

digital amplifier

digital amplifier

digital amplifier

digital amplifier

digital amplifier

digital amplifier