CcacHe 12v24v Car Modified Subwoofer, Heavy Subwoofer Car Truck Special Audio, Household High Power Subwoofer (Size : 5") : Amazon.es: Electrónica
Single Truck 10" L7R Subwoofer Enclosure | KICKER®
Amazon.com: Universal Regular Standard Cab Truck Kicker Comp C12 Dual 12" Sub Box Enclosure - Final 2 Ohm : Electronics
Should I port my subwoofer box? I've got 2 12s under the seat in my truck and with the windows down they hit like they should, with windows up they sound horrible,