Be very careful with the new MTX amps. Circuit City is selling this junk and not taking it back when it blows. We have had several customers over the last few months that have come to us for diagnosis, only to find their recently purchased MTX amp is junk. The last Explorer customer that we swapped into an Alpine took the MTX back just a week after purchasing it due to it not functioning, and he had to argue to even just get a store credit. Typical garbage from C.C.