American Bass HAWK 1244 12" 3000w Peak/1500w RMS Car Subwoofer w/Cooling Ring
One unit (not pair) |15 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-15 - Lii Audio, unique speaker, amplfier, quality and cost-saving parts for HiFi DIY
Best Buy: Pioneer 12" 1400 W Max Power, Single 4Ω Voice Coil, IMPP™ cone, Rubber Surround Component Subwoofer Black TS-A120S4E
MTX Road Thunder 10" Subwoofer w/carpeted enclosure (see pics for more info) | eBay