MTX JackHammer JH5512-04 12" 4-ohm subwoofer at Crutchfield
MTX Jackhammer Subwoofer - YouTube
22" 369 lb JackHammer #subwoofer with TA series #amplifiers and RoadThunder subwoofers taking over the area … | Car audio, Car audio installation, Car audio systems
Ray Smith looks at the "Jackhammer" subwoofer at the MTX Audio booth during the 2007 International International Consumer Electronics Show (CES) in Las Vegas, Nevada January 9, 2007. The 22-inch subwoofer wieghs