MTX JackHammer JH5512-04 12" 4-ohm subwoofer at Crutchfield
MTX Jackhammer Subwoofers- A Milli- HD - YouTube
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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
MTX JH5512-X2D Ported enclosure with two 12" JackHammer 55 subwoofers at Crutchfield