DS18 Pro BX 21" Neodymium Subwoofer 6000W Max 3000W RMS 2 Ohm w/ 6" VC — Big Jeff Online Inc
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
Massive Audio SUMMOXL 124 12 in. Subwoofer Dual 4 Ohm 1500W RMS & 3000W Maximum - Walmart.com
Toro Audio FORCE 12 Car Subwoofer | 12 Inch Subwoofer | 1500 Watts RMS – TORO AUDIO
Massive HIPPOXL 152R 15 in. 2 Ohm 3000W RMS 6000W Max Dual Subwoofer - Walmart.com