Amazon.com: Sound Town 18" 500W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-18120DR) : Musical Instruments
Amazon.com: Sundown Audio Pair of E-12 V.3 D4 12" 500W RMS Dual 4-Ohm EV.3 Series Subwoofers : 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
Amazon.com: Skar Audio VD-12 D2 12" 800W Max Power Dual 2 Ohm Shallow Mount Car Subwoofer : Electronics
Amazon.com: Infinity - Two KAPPA 12" (300mm) 500 Watt RMS, High-Performance Subwoofers, Switchable 2 OR 4 OHM : Electronics
Amazon.com: Sundown Audio SA-8 V.3 D4 8" 500W RMS Dual 4-Ohm SA Series Subwoofer : Electronics
Amazon.com: NVX VSW104V2 10" 500 watt RMS 1000 watt Peak Dual 4-ohm Professional Grade VS-Series Car Subwoofer : Electronics
Amazon.com: BLACK DIAMOND DIA-12D4 Car Subwoofer 12" 500W Max Power, 250W RMS, Dual 4 Ohms, DVC (1 Speaker) : Everything Else
Amazon.com: Pyle 8 Inch Car PA Woofer - 500 Watt High Powered Car Audio Sound Component Speaker System w/ 1.5" Kapton Voice Coil, 55-6 kHz Frequency, 89.2 dB, 8 Ohm, 40 oz Magnet - PylePro PPA8 , Black : Electronics
Amazon.com: NVX VCW124v3 12" 2400 Watt Peak (1200W RMS) Dual 4-Ohm VC-Series Car Subwoofer (VCW124 Version 3) : Electronics