Kicker 50GOLD124 50th Ann. Limited Edition Gold Comp 12" Car Subwoofer 500w RMS | eBay
Amazon.com: Focal Pair of SUB P30 12" 250W RMS 500W Max Single 4-Ohm Subwoofer : Electronics
5 CORE 8" Full Range Subwoofer Car Audio Speakers, RMS 50W Peak 500W, 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement WF 890 DBL - Walmart.com
Kicker 50GOLD124 1000W Peak (500W RMS) 12" Competition Gold Series Dua – SHOP CUSTOM AUTO
KICKER Single 12 Inch 2 Ohm 500W RMS Power CompR Subwoofer Enclosure, Black - Walmart.com
Amazon.com: Sundown Audio Pair of E-12 V.3 D4 12" 500W RMS Dual 4-Ohm EV.3 Series Subwoofers : Electronics
Pioneer TS-A300D4 12" 500W RMS Dual 4-Ohm A Series Subwoofer
SUNDOWN AUDIO E-15 V.3 D4 15" 500W RMS DUAL 4-OHM CAR SUBWOOFER BASS SPEAKER NEW | eBay