In my truck I am putting in a 13w7 in a custom sealed box (JL specs) with 2 JL 1000/1 amps, a Power Acustic 20 farad capacitor, a soundstream fuse block, an Alpine MRV-F540 amp (for the rest of the speakers), a pair of Polk Audio DB coaxials in the rear doors (i think 5 1/2"), a pair of Polk...