I've been monitoring the temps between the old and new amps. After 4 or more hours of listening to my system I get the following temps Old Amp 27.8C (82F) New Amp 36.8C (98.2) I don't know if this is too hot but it is a difference. I will keep monitoring to see if anything changes. This was during listening to music and not watching movies that I will try later to see if real heavy bass workload increases the temp any. Mel