I measured the Classé CP-800 with Stereophile's loan sample of the top-of-the-line Audio Precision SYS2722 system (see www.ap.com and the January 2008 "As We See It"); for some tests, I also used my vintage Audio Precision System One Dual Domain.
Looking first at the CP-800's performance via its digital inputs, with the volume control locked to unity analog gain or "0.0" with the Input Passthrough setting and in Analog Bypass mode, the AES/EBU and S/PDIF inputs successfully locked to data with sample rates ranging from 32 to 192kHz. However, as can be seen…