MAGNUM is the way to go, i have two 15's in my integra hatchback. i cant stand to go past volume level 25 (out of 35) this is with my punch knob turned all the way down. there clarity is awsome ive turned heads with mine, people think i have much more than i do in my trunk. they can make my whole car body flex about an inch. rattle rattle rattle. hope this helps.