It was digital gain. Thanks for the pointers! I recalibrated with audyssey and everything is playing together really nicely. I just listened to that seen from HTTYD again and hit 115db at LP and didn't hear that popping noise at all. I'm loving finally having a great sub! I have a pile of blu-rays sitting next to my Dune that I've been going through for the last couple of hours. I've been running the sub about 3db hot. Do most people run it a little hot or try to leave the calibration flat? I've read about house curves etc. and I guess I'll just tune to taste but was curious what others were setting their LFE at.
Hopefully you get that hum figured out Anikun. For the life of me, I have no ideas left. I dealt with that amp for a while and, at this point, think it may be a design flaw.
I had the clipping light blinking on the EP4000 during the pod emerging scene and was wondering, do other EP owners leave that clip limiter on or off?