I'll switch cables and terminators, but I doubt this will change anything.
The w/c chain starts at the digital console's internal Apogee clock, and is then daisy chained to the H8000 and from there to a sound interface.
The console channel refers to a regular console channel where the H8000's output returns. (A channel on the mixer.)
I've tried internal clock and ADAT as clock sources and the behavior does not change, so clocking to AES may be a futile effort at thsi point, don't you think?
Can you provide me with an RMA? When do we throw in the towel on forum support and go to the next level?