well i hooked it up today just for a test fire in my fd, and i must say I am quite impressed with it.. its not OMG super loud but it rattles my cabin and is super clean... well worth the 100 bux i paid for it. im super happy with it and all i need now is to upgrade my mids and highs and im set to go... has anyone put 6x8's in there doors rather than 5.25" speakers??