YAMAHA CDX-1020
¥ 82,500 (around 1989)
Commentary
CD player equipped with new high bit system.
It uses Yamaha's high-bit system and achieves natural sound quality by obtaining smoother DAC output through high-precision digital arithmetic processing that goes beyond the basic CD format.
In addition, the adoption of a high-bit system enables pure DAC direct playback without passing through a low-pass filter, which had been considered essential in the past.
The digital filter uses an 8fsx18-bit digital filter to shift the sampling noise to a higher frequency range and obtain high-resolution output.
The high-bit digital filter achieves an in-band ripple of ± 0.0001 dB and an out-of-band noise of less than -100dB due to the high-bit digital filter's high-precision digital calculation capability of 225 order + 41 order + 21 order and the characteristics of the digital filter itself. At 16-bit resolution, noiseless and rippleless digital performance is achieved.
The D/A converter is equipped with two 22-bit operation DACs. The 22-bit operation type improves resolution and also acts as a kind of noise reduction circuit, greatly improving the S/N ratio at a very small level.
The power supply section is equipped with a large transformer with an aluminum diecast cover with separate windings for digital and audio systems, a high-voltage electrolytic capacitor, and a shunt regulator for clearer power supply.
2.6 mm thick extra-heavy steel plate is used for the top and bottom cover to reduce the adverse effect of vibration.
In addition, GP legs are used for the legs, which can be used as both an inverted conical pinpoint and a large insulator. By firmly supporting the load, external vibration is suppressed.
It is equipped with a digital output terminal that is coaxial with the light.
0.4 dB step digital volume is mounted.
There are 2 color variations, titanium color and black.
Wireless remote control is included.
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Model Rating
| Type | CD Player |
| Frequency characteristic | 2 Hz to 20 kHz ± 0.1 dB |
| Harmonic distortion factor | 0.003% or less (EIAJ) |
| Signal-to-noise ratio | 120 dB or more (EIAJ) |
| Dynamic range | 100 dB or more (EIAJ) |
| Channel separation | 96 dB or more (EIAJ) |
| Wow flutter | Below the measurement limit |
| Output voltage | 2Vrms |
| Headphone out | 450mV |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 20W |
| External dimensions | Width 435x Height 112x Depth 357 mm |
| Weight | 11.8kg |
| Attachment | Wireless Remote Control |
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