.... (95wpc into 8 ohms all channels driven, currently running two M80s only).
You're the guy that's got 4 M80's, right? You're not trying to run all 4 M80's off of that one XPA-2 - a pair of M80's off each channel - are you?
I tend to agree with Rick. I'd get a replacement XPA from Emotiva ASAP to rule out a defective amp. If that new amp does the same thing, get your money back and buy a different amp from somewhere else that has a full money-back guarantee. If *that* amp has problems too, then it's got to be something in your home wiring or in the M80 itself. You've got to rule out variables here.
Whatever the outcome, keep us informed. I'm curious how this will play out.
