Ive been riding around listening to my two Memphis Power Reference 10's for long enough. I'm looking to upgrade to a couple 15's in a ported box but i have no idea where to start, I'm kinda burnt out because Ive spent all my time trying to get my front stage set up but I'm ready to get back in the game. I will build my own box but i need help finding subs and an amp. My budget is around $500ish for my subs and $200ish for my amp. I want really deep but loud bass but some clarity would be nice, I will drive them pretty hard so I want them to be able to last. I could probably find an amp but if you have suggestions they will be appreciated (must be class D). I drive a 2002 Pontiac Grand Am SE if that helps. Thanks.