How is the Integra 7 connected to the sound card? If it is via SPDIF, which device is the master for clock? Remember that spdif has no native clock line and you can get issues between devices. I think you can set the Integra to be the master clock device. If you are connecting analog then you can ignore all of what I wrote above. AES/EBU digital audio does have a clock line and generally avoids clock issues.