like to share a problem i'm facing with my Yammy 663 AVR, whenever i turn up the volume and when there's a loud sound eg explosion etc the receiver automatic turn off i.e. trip... any one facing this problem?

i'm using Epos M12.2 for front spkrs and Epos M8 for the centre spkr..

i've set the impedance to 8ohm and spkrs to small ... check all connections sprkr cables etc and hopefully tonite i'll try out Transformer 1 movie and crank up the volume..see what happen.

i recently been having problem with my yamaha rx-v663. Its been shutting off on me when i have the volume high, around -30db. When i turn it back on, it says check speaker wires so i redid all the speaker wires and it still happens. Im using a 5.1 system with Epos m12.2 front speakers and Epos M8 centre speaker. I was wondering if its because of too much power usage of something like that. I have also check the impendence which is set at 8 Ohm and the receiver gets hot to the touch after it shuts down. If some one has a similar problem or any suggestion, please help.

I started out with the same speakers when i purchase the yamaha in dec 2008, same placement, no obstruction to the ventilation but why the problem started only now...i agree -30db is not that loud to begin with..

I went to the dealer AVE in Chai Leng Park and run tests and turn out the left surround got problem maybe the electronic inside the receiver for the left surround speaker is damaged, the receiver still under warranty just 7 months old...the dealer sending it to Yamaha service to sort out and mean while i got a receiver for temporary replacement...

got back my 663 from yamaha service centre, the problem fixed apparently the left rear speaker out-put got problem causing the receiver to auto turn-off when playing for too long or at high volume and causing over heating.. symptoms includes ... auto cut off, over heating, low volume out-put the receiver was bought in Dec 2008. another symptom lots of slight electric shocks when touching the metal parts of the receiver..