Ive had planet audio amps in the past and they have always held up on all the different brands of subs and componet speakers I have used. I find my self going back to planet audio amps for the price and the quality of their product. Ive smoked MTX, Kicker and other major name brand amps, but never this brand. The AC200.2 im using for 6x9s and im using the AC2600.2 for my two 15"inch subs