I have a Rotel RA05 amp that keeps "tripping out" at anything beyond the 10 o'clock position on the volume control. The amp does get very hot and it would appear that the protection circuitry cuts in and switches off the amp to prevent damage. I have tried placing the amp in several different locations to ensure good air circulation and have also checked all the connections but the problem persists. The amp is still under 2 years old and therefore under warranty but the dealer couldn't replicate the fault. Any thoughts anyone?