Hi all, I've been sending two channels of audio via SPDIF from an RME Hammerfall DSP multiface to to a Delta 66. Listening to the Delta, I notice some little periodic glitches which seem to indicate a synch problem [these glitches are not present when receiving from the same card via analog]. Can anybody suggest how I can troubleshoot this? Is it necessary to make one a master and one a slave? If so, how is this done? thx, d. -- derek holzer ::: http://www.umatic.nl ---Oblique Strategy # 72: "Find a safe part and use it as an anchor"