SANSUI CD - α 317R
¥ 39,800 (Released in November 1991)
Commentary
A CD-player with two third generation Mash.
In order to convert digital signals read from CDs into analog signals more faithfully, we have adopted a unique D/A converter system that operates in complimentary service mode with two 3rd generation Mash installed. This system doubles the resolution of the PWM output as a 1-bit 8-DAC twin balance system. We have succeeded in improving the S / N ratio by eliminating in-phase noise and thoroughly improving the distortion in the high frequency range.
In addition, the digital signal is instantly balanced into a 1-bit signal and the analog signal is directly output. This eliminates in principle the generation of 0 cross distortion and non-linear distortion that occur in multi-bit systems, and achieves excellent reproduction capability in minute level signals.
The power supply section employs a multi-power system with seven independent power sources to prevent degradation of sound quality due to interference between the microcomputer, DAC, drive system, display, analog system, etc. We have also newly developed an electrolytic capacitor using low-magnification aluminum foil and a high-capacity transformer to realize a power supply section with excellent linearity over a wide band.
The center mechanism layout is adopted, and the drive system is placed in the center of the body, and vibration and resonance during driving are reduced by balancing the weight of the mechanism.
Equipped with two outputs, fixed and variable.
Equipped with an auto fader that can fade out music to silence (- ∞ dB) while listening, or fade in music from silence to the set volume level.
The fade time can be set in 1-second intervals from 2 seconds to 10 seconds.
It is equipped with a peak search that detects the peak point of the disk, displays the level, and plays for 5 seconds.
Equipped with digital optical output.
Uses a display with ON/OFF function.
It is equipped with functions such as Play mode (Cont. / Prog. / Rand. / Edit), Side A/B, Sync., Auto Space / Auto Pause, memory to follow, Music Scan, 3-way repeat, 20-track music calendar, etc.
Wireless remote control is included.
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Model Rating
| Type | CD Player |
| D/A converter | 18 bit resolution Mash DAC2 units |
| Frequency characteristic | 4 Hz to 20 kHz ± 0.3 dB |
| Harmonic distortion factor (1 kHz) | 0.003% |
| Dynamic range | 98 dB or More (EIAJ) |
| Wow and flutter | Measurement limit value or less |
| Signal-to-noise ratio | 103 dB or more (EIAJ) |
| Output voltage | 2V |
| Rated power consumption | 13W |
| External dimensions | Width 430x Height 114x Depth 281 mm |
| Weight | 4.3kg |
| Attachment | Wireless Remote Control |