Any D8b users ever check the amount of DC offset at the AES or SPDIF outputs? I recently did and its a lot! Here's the test: Most of us have the Apogee clock card and three Dig I/O installed and run vr. 3.0 Unplug all mic & line cabling as well as dig I/O cabling to cards. Set all faders to unity turn off all EQ,Comp,Gate and assign to the 2-bus.