A friend of mine had the exact some amp in his car, and he had the same touble.Track burning inside, power transistor burning out... After the 2 set of mosfet changed, he decided to put it in the trash and to buy a JL.He never regret his choice.At the beggining, he was wondering if I'd choose the Sony instead of my JBL power amp. His Sony does dead twice, and my JBL still running good.X-Plod product has bad habbit to explod early.