1 - Reason for the five M80's, same logic as any out of the box home theater speaker system, fronts, rear, center are all matched.
2 - Not sure what you are asking about the 5.1 sound, sounds great, the rear M80's effect nothing when in 5.1.
3 - Not wanting to start another long thread on speaker wire gage/length, but from my testing of the shortest verses longest speaker wire in my system, has no effect rather its the 3' center wire, or the 60' rear ones.
4 - Actually the heat problem on the Outlaw 770 would cut out the thermo protector on a channel within 20 minutes, no matter what speaker I switched to that chanel amp. 99 % of the time it was always the left rear channel that was cutting out, and the tech had the assumption it had to be becasue it just happened to be the long 60' speaker run. I played the same source material, at the same level, for the same lenght of time, and it would always cut out in 20 minutes, on any speaker on that channel amp, even did it with each of the QS8's. Of course could it be that the left rear channel amp just happened to be in the center of the Outlaw 770 ?
