Amazon.com: American Bass Godfather 1222 12" Subwoofer 3000 Watts RMS 6000 Watts MAX : Electronics
Amazon.com: Massive Audio SUMMOXL154-15 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 15" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
15" NITRO SERIES SUBWOOFER 3000WMAX / 1500 WRMS DUAL COIL 4 OHM VOICE – GENIUS AUDIO USA