Hey here's a suggestion(i'm a MECP cert. tech too!) let me know what kind of music u listen to. that makes a diff in the kind of box and subs u wanna use. i need part #'s or specs to be more helpful than i can. i will say this--ported boxes are good for loose bass response(like rap music) and sealed are good for tight bass(like electronic music). I listen to both so i got a bandpass box--sealed in front and ported in back to combine the best of both worlds. just remember to get quality woofers cause bandpass boxes are not heat friendly! try audiobahn! good woofers and not too much $$ but u get what u pay for. make sure the inner box volume is compatible with the requirements for the woofer or brand dont mean diddley!!
