I learned a little bit today when one of the power cords got knocked out of the wall -- one power supply powers the right channels and one power supply channels the left channels. I am not sure about the center channel. The right power supply was powering it when the left was off, but I did not try the reverse as my wife was trying to watch a movie while I was playing around with the amp.

Could be one reason 2 channel sounds so good from this amp. The right and left channels have completely separate power supplies.

Cool. It's not surprising that the left (and left surround and left side surround) is on one power supply while the right, right surround, and right side surround go on the other. It's the same logic behind how they have distributed loads between the two transformers in the other large Outlaw amps - distributes the actual audio loads most evenly. Which one gets the center is probably a toss-up.