Amazon.com: Pioneer TS-A300D4 12 Inch 1500 Watts Max Power Dual 4-Ohm Voice Coil A Series Car Audio Stereo Subwoofer Loudspeakers / Free Alphasonik Earbuds : Electronics
2-Pioneer 1500 Watts peak each 12" 4-ohm subwoofer & Bass Mono Amplifier package | eBay
Pioneer TS-W1200PRO Pro-Series 12 inch 450 Watt Subwoofer