I know one other person who already has this receiver and he say's his gets hot also..........so no worries.

I have to tell you guy's, so far I'm dam impressed with this thing. I can't believe a Yamaha has this kind of power. I thought the Pioneer 1015 did a decent job of driving my Rockets but the Yamaha is packing a much bigger punch. I'm not sure the Yamaha has the same reserves as the NAD but it's holding it's own.