I used to have an older Buick I ran competitions with (more of a show car, but hit 153 dB). It had 6 12" perfects in the trunk with a JBL 600.1 to each. They took the power and begged for more. If you are looking for excellent SQ these are your subs, if you want a little more boomy setup you may look towards a JL. If you just want plain loud get yourself a Kicker L7.