Yamaha – YAMAHA CDX 2020 Cd-speler

• YAMAHA CDX-2020 • ¥182,000 (around 1989)CommentsA CD player equipped with a 4 DAC high-bit system.It utilizes Yamaha's high-bit system and achieves natural sound quality by obtaining smoother DAC output through highly accurate digital arithmetic processing that goes beyond the standard CD format.Furthermore, the application of a high-bit system enables pure direct DAC playback without passing through a low-pass filter, which was considered essential in the past.The digital filter uses an 8fsx20-bit digital filter to shift the sampling noise to a higher 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 -100 dB thanks to the high-bit digital filter's extremely accurate digital calculation capacity of 225 order + 41 order + 21 order and the characteristics of the digital filter itself. At a resolution of 16 bits, noise-free and ripple-free digital performance is achieved.The D/A conversion section has two 22-bit DACs per channel. By mounting two 22-bit DACs per channel, positive phase and negative phase signals are used to prevent noise contamination from the power supply circuit, achieving a high S/N ratio.In addition to improving resolution, the 22-bit processing type also functions as a kind of noise... lees verder bij Catawiki