Man, that stinks! I have a 3.6 and "knock on wood" haven't had any problems and I crank it pretty good on occassion with a classe ca200. Unless you really crank it until you hear some breakup I don't see how it blows, it sounds like some sort of short somewhere. what does Thiel say about it? lots of components in that crossover that's where I'd start. good luck.
