Audiopipe 12" Woofer 1600W Max Dual 4 Ohm TS-PP3-12D4
Pyle 8 Inch 1600W DVC 4 Ohm Car Audio Subwoofer Speaker Set, Black (2 Pack) - Walmart.com
BOSS Audio Systems PD12LED Phantom Series 12 Inch Car Audio Subwoofer - 1600 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck Boxes and Enclosures, Hook Up To Amplifier