Have been having the worst luck with amp heads,I had 2 stolen on.a gig a few years back I have best luck with a Peavey mark 4 and mark 3 Ifeel my favorites were my G-K Trace Elliot and old Accoustic. I have a Carvin about 30 years old the cab is mint it looks new the head just stopped and I was told parts could not be found so I bought 2 Hartkes and one malfunctioned right away and I had it fixed but the stronger of the 2 the 250 watt one sounds fantastic well on a show this weekend during encore it just stopped working but it does power up I checked for a inline fuse but did not see one, is there anything simple I can check? Before I send it out for repair?