My new pioneer ax10 keeps cutting out(happened 3 times) at 0db for no reason. the sound is not strained and no warning lights flash.Surely I can't be driving it too hard??? can someone help me. Whats worrying me is that I am only using it in stereo at the moment to power B&W N804 & REL Q400E. It does seem to generate enough heat to replace the radiator but maybe that is normal ???