Amazon.com: Rockford Fosgate 12 Inch 400 Watt 4-Ohm SVC Car Subwoofer (4 Pack) : Electronics
Amazon.com: Cerwin Vega RPM104SL 10" 4Ω 400W Max / 200W RMS Single Voice Coil Marine Subwoofer : Electronics
Amazon.com: Black Diamond DIA-8D4 Car Subwoofer 8" 400W Max Power, 200W RMS, Dual 4 Ohms, DVC (1 Speaker) : Electronics
Amazon.com: Massive Audio GTX124R – 12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 1,000 Watt RMS, 2000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: New Pair SSL SS12 12" 800 Watt Car Audio Subwoofer 4 Ohm SVC 400W RMS Sub : Electronics
Amazon.com: Polk Audio HTS 12 Powered Subwoofer with Power Port Technology | 12” Woofer, up to 400W Amp | For the Ultimate Home Theater Experience | Modern Sub that Fits in any
Amazon.com: Alphasonik NSW410 Neuron 400 Series 10” 1200 Watts Max / 400 Watts RMS Dual 4 Ohm Car Subwoofer w/ High Grade Magnet Non Pressed Paper Carbon Stitched Cone Cooling Rings System