Amazon.com: Black Diamond DIA-8D4 Car Subwoofer 8" 400W Max Power, 200W RMS, Dual 4 Ohms, DVC (1 Speaker) : Electronics
Amazon.com: New Pair SSL SS12 12" 800 Watt Car Audio Subwoofer 4 Ohm SVC 400W RMS Sub : Electronics
Amazon.com: MTX Magnum 10" 400W RMS Dual Loaded Subwoofer Sub Box System Package w/BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit : Electronics
Amazon.com: Kenwood Excelon KFC-XW120 2000W Max (400W Rms) 12" 4-Ohm Excelon Series Car Subwoofer : 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
DS18 SLC-8S Subwoofer in Black - 8-Inch Speaker, 400W Max Power, 200W RMS Power, Aluminum 4 Layer Voice Coil, Black Steel Frame, SVC, 4 Ohm Impedance, Ferrite Magnet (1 Speaker) (SLC8S) : Electronics
Amazon.com: New Pair SSL SS12 12" 800 Watt Car Audio Subwoofer 4 Ohm SVC 400W RMS Sub : Electronics
Amazon.com: (2) New SKAR Audio VD-8 D2 8" 400W RMS Dual 2 Shallow Mount SUBWOOFERS - Pair : Electronics
Amazon.com: MTX TNP212D2 12-Inch 400-Watt RMS Dual Loaded 1200-Watt Car Subwoofer Enclosure Audio with Sub Box, Mono Block Amplifier, and 8 Gauge Amplifier Amp Complete Wiring Installation Kit : Electronics
Amazon.com: Hifonics HFX12D4-PAIR 400-Watt 12-Inch HF Series Dual 4-OHM Subwoofer, Set of 2 : Electronics
Amazon.com: Cerwin Vega RPM104SL 10" 4Ω 400W Max / 200W RMS Single Voice Coil Marine Subwoofer : Electronics
Skar Audio EVL-65 D4 6.5" 400 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: Rockville SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub : Everything Else
Amazon.com: MTX Magnum 10" 400W RMS Dual Car Loaded Subwoofer Sub Woofer+Box+Amp Kit Package : Electronics
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
Amazon.com: Rockford Fosgate 12 Inch 400 Watt 4-Ohm SVC Car Subwoofer (4 Pack) : 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: Massive Audio GTX84 – 8 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 8" Subwoofer 400 Watt RMS, 800w MAX Dual 4 Ohm, 2 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Massive Audio HIPPO84V2 – 8 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 8" Subwoofer 500 Watt RMS, 1000w MAX Dual 4 Ohm, 2.5 Inch Voice Coil. Sold Individually : Electronics