BOSS Audio Systems B12ES 12 Inch Powered Car Subwoofer Package - 600 Watts Max, Built-In Amplifier, Low Profile, Remote Subwoofer Control (16 ft Cable) - Walmart.com
Hertz MPS 300 S2 Mille Pro 12" Shallow Mount Subwoofer 2-Ohm Hertz 12" Shallow | eBay
RSL Speedwoofer 12S Subwoofer Digs Deep to 16Hz for Only $800?!? | Audioholics