Class D Digital Power Amplifier Audio Module Active Subwoofer Amplifier Board, Amplificador Subwoofer 500w Subwoofer Board - Home Theater Amplifiers - AliExpress
Resilient Sounds RS 10" D4 - 500w RMS Subwoofer
Trevoce Triple 10" Active Subwoofer | Outdoor Speaker Depot
Yamaha SW115V 15" Passive Subwoofer, 500W | Full Compass Systems
Amazon.com: Sound Town 18” 500W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-18120A) : Musical Instruments
SUNDOWN AUDIO E-12 V.4 D2 12" 500W RMS DUAL 2-OHM CAR SUBWOOFER BASS SPEAKER NEW | eBay
STLF-15110ZA | 15" 500W Cast Aluminum Frame Woofer (Low Frequency Driver) – Sound Town Inc
Rockville RV10P 10" 500w Car Subwoofer+Vented Sub Box+Crunch Amplifier+Amp Kit - Rockville Audio
Rockville RVB10.1A 10" 500W Powered Car Subwoofer + Sub Enclosure Box + Amp Wire Kit - Walmart.com