I just bought a new stereo amp which has digital inputs (Harman Kardon HK 990). This amp's DACs will accept input from 24 bit 192 KHz sources. I tried connecting this amp to my music server PC via the motherboard toslink connector. The PC has no add-on sound card installed. The computer is configured to render bit perfect output, but when I attempt to play any music files with a sample rate over 48KHz, there is silence. All 16 bit 44100KHz files sound glorious. Changing the toslink cable made no difference. I'm willing to wager that this is a PC issue, and not an amp problem, so I'm going to buy a sound card for the PC in hopes that it's digital interface will fix the problem. I was thinking about purchasing an Omega Claro II card, but since this new sound card's analog outputs will never be used, can I get the same results with a cheaper card? Are all digital outputs equal? I understand that a sound card's DAC and analog circuitry defines the card, but does a more expensive card have advantages from a digital perspective? Thanks for your insight on this issue.
Edited by DanoRoo - 1/26/14 at 10:20am