Best CD player Cambridge ever made. Upsampling with Swiss-software, Anagram Technologies, to 32-bit Blackfin DSP chip at 384kHz/24-bit. Full dual differential twin Analog Devices AD1955 DACs with 3 filter modes. Heavy-duty disc drive. Can act as DAC--accepts digital inputs. Absolute Sound review from 2013, https://www.theabsolutesound.com/articles/cambridge-audio-azur-851c-cd-playerdac/. Original owner, bought new in 2014. In great condition, sounds wonderful, not a scratch, only caveat is that the on/off and eject push buttons on the front panel and the remote are a bit finicky. Often takes two or three presses before engaging, though play and forward/reverse ok. Asking $600 + shipping.