Yes, I have the RF amp, its an old school one, not one of the new craptastic onesdo you already have the fosgate amp? personally, if you want to go with AQ, but dont want to step up to the hdc3's or 4's, i would throw a lil extra coin into getting the 2.5's... the 2" voice coil on the 2.0's doesnt take abuse too well (not as well as the 2.5's anyways). how much space are you looking at for your enclosure, and what type of enclosure are you thinking?