Amazon.com: Pioneer TS-A301S4 - Powerful 12-inch Subwoofer, 1600 Watts Peak Power, Single 4 Ohm Voice Coil for a Powerful Bass : Electronics
Pioneer India - TS-W120D4 | Immensely powerful at 1400W max power and flexible connectivity at 2 or 8 ohms
Pioneer TS-W312D4 | Car Entertainment, Subwoofers, Champion Series Subwoofer, Champion Series Red Subwoofer | Pioneer Middle East - Car Stereo, Car Subwoofer, Amplifier
Pioneer TS-W310S4 12" 1,400-Watt Champion Series Component Subwoofer - Single 4 ohm voice coil
TS-W311D4 - 12" Champion Series Subwoofer with Dual 4 Ohm Voice Coil | Pioneer Electronics USA