BOSS Audio Systems CXX10 Chaos Exxtreme Series 10 inch Car Audio Subwoofer - 800 Watts Max, Single 4 Ohm Voice Coil, for Truck, Boxes and Enclosures, Use With Amplifier - Walmart.com
Crunch CRW12D4 12 Inch 800 Watt MAX Dual Voice Coil Car Subwoofer Speaker - Walmart.com
TS-A30S4 - 12" - 1400w Max Power, Single 4W Voice Coil, IMPP Cone - Subwoofer | Pioneer Electronics USA