Received my 755 yesterday. When it turns on (with or without the other components being on), I hear a "pop" in my speakers and lights in the house do a rapid "blink" concurrent with the "pop". This occurs if I'm using the 950 "trigger" or manually use the 755's power button. Probably not related but something else I've never experienced with an amp, if I turn the amp off with the power button(with rest of system on) I continue to get normal volume sound for up to 10 seconds, then a little static for 2-3 seconds, and then it goes quiet.

I don't have power issues in the home (5 years old with 20 amp circuits)with anything else.

I hate to even think about the struggle to pack this "monster" back up for a return. However, even if I would tolerate the "pop" and "blinking lights", my wife won't! Are the above issues normal for the amp? Any ideas on the cause other the amp itself? Thanks