Amazon.com: Orion XTR154D 15" 750W RMS Dual 4 Ohm High Performance Car Subwoofer, 3000W : Electronics
Pioneer TS-W3002D4 Champion Series 12" 3500W PRO DVC Subwoofer 4+4 Ohm
AUDIOPIPE 12 in. High Power 3000-Watt Dual 4 Ohm Car Audio Subwoofers 2 x TXX-BD2-12 - The Home Depot
TS-WX1220AH - 12" - 3000w Max Power, Built-In 1200w Output Amplifier - Ported Active Enclosure Subwoofer | Pioneer Electronics USA
Pioneer Premier TS-W8102SPL SPL Champion Series 15" sub with dual 2-ohm voice coils at Crutchfield
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