PIONEER TS-W311S4 CHAMPION SERIES 12" 4-OHM SUBWOOFER 1,400 WATT (400 W RMS) NEW | eBay
Powerbass XL-1244 12 in. Single 4 Ohm Subwoofer 400W RMS & 800W Maximum - Walmart.com
Crunch Crw12d4 12 Inch 800 Watt Max 400 Watt Rms 4 Ohm Dual Voice Coil Car Audio Subwoofer Speaker With Spade Terminals For Sealed Or Vented Enclosure : Target
Amazon.com: MB Quart DS1-204 Discus Shallow Mount Subwoofer (Black) – 8 Inch Subwoofer, 400 Watt, Car Audio, 2 Inch Voice Coils, UV Rubber Surround, Best in Sealed Enclosures : Electronics
MESO-6-5 - 800 Watt 6.5 Inch Car Subwoofer - CT Sounds – CT SOUNDS
XL-844 8" Subwoofer
Amazon.com: Skar Audio IX-10 D4 10" 400 Watt Max Power Dual 4 Ohm Car Subwoofer : 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
Toro Audio Fierce 8 Inch Car Subwoofer | 8 Inch Subwoofer | 400 Watts RMS – TORO AUDIO
Amazon.com: Focal Pair SUB P25 10" 200W RMS 400W Max Single 4-Ohm Subwoofer : Electronics
Alphasonik NSW408 Neuron 400 Series 8” 750 Watts Max / 250 Watts RMS D | Alphasonik