I have a Denon AVR1800 receiver with Klipsch SF2 speakers and an SF2 subwoofer. If I turn up the music beyond -13dB (as indicated on the AV receiver)...the amp will shut down sporadically. It seems like if my CD player outputs a loud portion of the music the power supply shuts down or something. When the receiver shuts down...the power/standby led on the front blinks on and off.

I am considering buying the service manual for this receiver...but I would like to know if anyone here could point me in the right direction??

I guess the main question is...why does it shut down and the power/standby light blink? And how can I fix this so it doesn't do this?

Thanks for the help.