BOSS Audio Systems BE12D Elite Series 12 Inch Car Audio Subwoofer - 1000 Watts Max, Dual 4 Ohm Voice Coil, For Truck Boxes and Enclosures, Hook Up To Amplifier
Power Acoustik MOFO-152X 15" 3000 Watt / 1700w RMS Car Subwoofer Sub MOFO152X - Walmart.com
Amazon.com: DS18 SLC12S Car Subwoofer Audio Speaker - 12" in. Paper Glass Fiber Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 500W MAX Power and Foam Surround for Vehicle Stereo