Also another option for me might be getting two of the brand new 12" Polk MoMo subs and port them ( http://www.polkaudio.com/car/specs.php?name=mm2124 ) . I would make each chamber 1.5 b4 displacment and port to 30 Hz? And run them off the 600 watt xtant amp or should i get the 1000 Watt MTX like i was going to? I mean if the alpine type E's wont sound good id rather get these Mo Mo's and port 2 if they would slam even more. Again i wanna thank you guys so much for puttin up with my newbieness