Pioneer Premier Two 12'' 3000 Watts 1 ohm - YouTube
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
Pioneer TS-W2502D4 10" Champion Series Pro Subwoofer With 3000 Watts Max Power - Dual 4 ohm