Скачать с ютуб Sony SCD-1 Super Audio CD Player Overview в хорошем качестве

Sony SCD-1 Super Audio CD Player Overview

Correction on the Custom switch. From a fellow audiophile (Tony Plachy). ** the small switch in back for "Standard" and "Custom" actually controls the anti-aliasing filter used for the DSD data stream on the SACD's. Because of the much higher sampling rate of DSD (2.8224 Msps as opposed to the 44.1 Ksps for a redbook CD) the cutoff point the anti-aliasing filter can be much higher than the 22.05 KHz used for CD's. This means that many of the ill effects of the anti-aliasing filter on the audio band signal can be reduce by setting the DSD anti-aliasing filter at a higher frequency. Now in principle the DSD anti-aliasing filter could be set at 1.4112 MHz, however this is probably overkill for reducing the ill effects on the audio band (20 Hz - 20 KHz). So in the "Standard" position the anti-aliasing filter for the DSD begins to slope off at 50 KHz with a gradual slope. Switching to "Custom" moves the filter slope off point to 100 KHz. Sony was concerned that if the was too much signal in the frequencies above 50 KHz that some amplifiers would react by oscillating and perhaps damaging the amp in doing so. I have not heard of an amps having this problem when using the SCD-1 with the filter in the "Custom" position. **