Good suggestion, but I like having the speakers match for one, and at the moment, the M80's are not the problem. After 3 days of trying every possible combination, its looking like its a heat problem, and seems the 770 is not dealing with it. If it was as simple as chaning the rears, I would, but at this time, does not guarantee to solve the issue. But really...I'm not giving up any of my M80's. <g>

ROCK 'N' HAXIOM Theater