10inch 500 Watts High Performance Woofer Speaker PRO Audio - China Audio Subwoofer, Loudspeaker Subwoofer | Made-in-China.com
REL Acoustics HT/1205 - 500 Watt Subwoofer for Home Theater - HiFi Collector
Amazon.com: Pyramid 12 Inch Car Subwoofer Speaker - 500 Watt High Powered Car Audio Sound Component Speaker System w/ 1.5 Inch Kapton Bobbin Voice Coil, 8 Ohm, 25 oz Magnet, Cloth Edge
ROCKFORD FOSGATE P500-12P SINGLE 12" 500 WATT POWERED SUBWOOFER 12 INCH SUB NEW! | 702MOTORINGLASVEGAS
JBL 500 Watt Subwoofer.. Make Offer | eBay
Pyramid PW1048USX 10 Inch 500 Watt 8 Ohm High Performance Car Audio Subwoofer - Walmart.com
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