Denon DRA-395 Stereo multi-room receiver (4 to 16 ohm) Pair Polk Audio Atrium 45's (8 ohm) I wired two zones myself while building my house. The first time i hooked up the receiver to one pair of speakers, it worked fine unitl the receiver quit! After repair (they said some transistors had blown or something) it did it again! What is happening? Is my wiring bad? I know the speakers are compatable.