Sound Town 18" Cast Aluminum Frame High-Power Raw Woofer Speaker, 1000 Watts Pro Audio PA DJ Replacement Subwoofer Low Frequency Driver (STLF-18500A) - Walmart.com
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Powered 10" Pro Audio Subwoofer Cabinet PA DJ PRO Audio Band Speaker New 500W | Reverb
JBL JBL PRX915XLF Professional 15" 2000W Powered Subwoofer with Bluetooth Control
Adam Professional Audio A7V 7-inch Powered Studio Monitor Pair w/ Sub10 Mk2 10 inch Powered Studio Subwoofer | Pro Audio LA
ADAM Audio Sub10 Mk2 10" Powered Studio Subwoofer (Each) | Music & Arts
JBL IRX115S 1300 Watt 15" Powered Subwoofer Pro Audio PA Sub+(4) Wireless Mics | eBay