So yet another 7Pro down. I've had mine 2 years with no problems what so ever. I do run it loud though. Running through a 410HLF. Last night I show up to rehearsal, flick the switch. Lights up, then I get a whining noise through my speakers similar to a siren. It fades out and the amp shuts down. I was not happy to say the least and after a few beers did not want to be fiddling with it, not sure which version I have. Anyone here have any ideas?