Amazon.com: American Bass Godfather 1222 12" Subwoofer 3000 Watts RMS 6000 Watts MAX : Electronics
Amazon.com: Massive Audio KILOX122-12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 1000 Watt RMS, 2000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: NVX VCW122v3 (VCW122 Version 3) 2400 Watt Peak (1200W RMS) 12" VC-Series v3 Dual 2-Ohm Car Subwoofer : Electronics