Audio Database


The second CD player developed as a high-end model of the CD-63.

The pickup section is equipped with an ultra-compact mechanism that drives an original ultra-compact laser pickup with a linear motor.

A linear skating mechanism is adopted for the disk mounting part, and the whole disk tray part is pulled out by the switch, the disk arrives, and it is fixed by the unique disk clamp method.
In this disk clamp method, a precise machining spindle and a unique magnet disk clamper realize a reliable hold.

We have adopted our own fully balanced swing mechanism for the mechanism.

It is equipped with two 8-bit microcomputers and controls the servo system, program system and control system.

A specially developed error collection circuit has been adopted to obtain high error correction capability.

The digital filter LSI reduces the effect on the audible band that cannot be avoided with a conventional multi-stage analog low-pass filter.

I for display, key search, communication between microcomputers, etc.2The CBus system allows two microcomputers to efficiently handle independent functions, so that most of their capabilities can be devoted to the servocontrol required for high-quality sound reproduction.

Model Rating
Type CD Player
Sampling frequency 44.1kHz
Quantization number 16-bit linear
Modulation system EFM
Channel bit rate 4.3218Mb/sec
Error correction system CIRC
Encoding 2's complement
Semiconductor laser wavelength 0.78 μ m
Numerical Aperture (NA) 0.45
Depth of focus ± 2 μ m
Beam spot diameter (disk surface) About 1 mm in diameter
Output 2.0V
Playback frequency band 5 Hz to 20 kHz
Signal-to-noise ratio 90 dB or more
Dynamic range 90 dB or more
Channel separation 90 dB or more
Harmonic distortion factor (1 kHz) 0.004%
Wow flutter Crystal accuracy (less than measurement limit)
Deemphasis Automatic switching
Pwer 100 VAC, 50Hz/60Hz
Power consumption 30W
External dimensions Width 416x Height 81x Depth 300 mm
Weight 8kg
Attachment One disk
1 low-capacity pin cord