well wow you got sound crisp an clear in those sentence
s but you want powerful too hummmmm well with those my friend your gonna need like 8 more of those 12's in a sealed box.
a good sounding powerful bass isn't clear its bass man ain't nothing clear about it. get ya about 4 cubes after disp, get ya a aq2200.1 an it will sound fairly decent an if the box is built right it will get loud as hell.
hope this helps man good luck with what you got,
little FYI for you most of the guys on this forum don't even drive an listen to their systems on a daily basis. there is a few of us an i am one of them but not many. this question would prolly be better suited at
www.down4sound.com but those guys are just gonna reccomend you Dung Pile all the day long an you lwill never make up your mind cause you got one saying audioque is better an sundown, DAD, FI,DD, RD, an all other D'S but in the end man its totally up to you an how phat your wallet is.