Hmmm...sounds like you need to check the 12v switch setup in the On Screen Menu. I know my NAD has defeatable 12v input settings, etc. It is also possible that you had too much on the breaker....although I have my entire family room setup (NAD Separates (140x7 all channels driven at the same time), Servo 15 sub, 6 recessed can lights, fan, 2 large cansiter filters for the 75g cichlid tank, and some other things on the same breaker and my NAD and has never shut down - and that would include running for extended times at 100db plus (parties, etc). IN fact, my amp has never, ever, even been more then 10 degrees warmer then the ambient temp. I do agree they seem to give a lot of bang for the buck, but perhaps the reduced cost is due to a reason? I agree with above, I would not keep an amp that kept shutting down
