Amazon.com: American Bass XR-12D2 12" 2,400 Watts Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: Genius Audio N6-12D2 12 Inch Car Subwoofer 400 Watts RMS - 800 Watts Max High Power Pro Audio Sub Speaker Steel Basket Car Audio Speaker Ferrite Magnet 2 Ohm Copper Coil