Massive Audio BOA181 (46 cm, 6000 W RMS, Double 1 Ohm, 105.3dB)
MMA124- 12" 500 Watts RMS Dual 4 Ohm Subwoofer
Massive Audio HIPPO XL 152R
Amazon.com: Massive Audio KILOX124-12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 1000 Watt RMS, 2000w MAX Dual 2 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics