What could be causing this? Several things, but they all come down to one thing: The new IC is defective. Don't use it. Problem solved.
Cable INteracion Question
I am trying a new set of cables, and when I insert them between the preamp and amp, I hear a ton of noise (sounds like the capacitors charging) in the amp at power up. When I revert back to my old cables I hear no such noise. What could be causing the "noise" in the new cables??