Audio Database


NEC CD-710
64,800yen(around the 1987 time)

The compact disk player which carries a variegated performance time edit function.

The auto edit function is carried, and the special NetWare program of the span which does not exceed the time specified first is created automatically, and is performed in an order from the music of the beginning of a disk, or the specified music. Moreover, a special NetWare program is made freely, checking residual time in the span of the specified time by a manual edit function.

The auto fadeout functionality by a fadeout key is carried.

The blank time for a minimum of 4 seconds can be automatically set up between the music and music to perform.

According to the residual time of a tapes, the "music display function within residual time" which indicates the numbering of the music which can be performed to within a time by blinking is carried.

In order to eliminate a digital noise, the digital circuit and the analog circuit are connected by the optical-transmission scheme.
The optical-transmission scheme has adopted the L/R serial data, the latch pulse signal, the clock signal, the control signal, etc. as six lines.

The 16-bit oversampling digital filter is adopted and the burden of an analog filter is eased by extending the space character of a music signal and a sampling noise.

In order to prevent the digital noise mixed in an analog part via a power circuit, it dissociated from the coil of the power transformer and the interference digital one / between analogs is eliminated.

The digital output termination is carried.

In order to release an optical pickup system from the influence of an oscillation, the vibration-proof design optical chassis is adopted, and the original floating suspension of NEC is absorbing the extraneous vibration and the internal oscillation by rotation of a motor.

Three kinds of repeat functions, an index search, an intro scan, 24 music random program memory, 2 speed music search, and the skip song selection functionality are carried.

The headphone jack with a volume is carried.

The power-on start functionality which can be performed at a timer start is carried.

Two analog output terminals, variable and a fixture, are carried.

Wireless remote control with a ten key is attached.


Rating of a mode
Form Compact disk player
Pickup scheme GaAlAs double heterodyne semiconductor laser
Rotational frequency About 500-200rpm (CLV)
Performance velocity 1.2 m/s - 1.4 m/s (regularity)
Error-correcting system cross-interleaved-Reed-Solomon-code double error-correcting system
The number of channels Two channels
Composite-izing 16-bit linear line
Frequency characteristic 5Hz-20kHz±0.5dB
THD 0.006% or less
Dynamic range 94dB or more
SN ratio 100dB or more
Channel separation 90dB or more (1kHz)
Wow and flutter Below a limit-of-measurement value (quartz-crystal oscillation precision)
Output voltage 2.0Vrms
Supply voltage AC100V, 50Hz/60Hz
Power consumption 15W
Dimensions The width 430x height 99.5x depth of 335mm
Weight 5.5kg
Adjunct Wireless remote control AR-710