i have 2 dual 4ohm l7 15s and im about to get the aq2200 has anyone had any experience with this setup and i need some kind of box design with subs facing up and port to the back. its goin in a 1999 c2500 suburban. n my max deminsion are 46-48 in side to side, 21-24 in from seat to back doors, and 20-24 in height. i want 5 cubes per speaker and tuned around 35 hz ordering this amp tomorow. wanna get started on box soon thank for any input