I have a 2000 jeep cherokee and putting (2) 13w7 and (2) jl audio 1000/1 amps with a cap and battery. If you read my other thread i was going to get 2 audiobahns a2300hct but then i changed my mind because jl is just better. Anyways, the installer is going to make my box and wants to know if i want it sealed or ported, and i told him to give me a few days to decide... what do yall think because i want to hit a big number of decibals...