Klipsch Reference Series 10" 450W Powered Subwoofer Black R-110SW - Best Buy
Amazon.com: Sound Town 15" 450W Raw Woofer Speaker with 4" Voice Coil, 100 oz Magnet, Replacement Woofer for PA/DJ Subwoofer, 8-ohm (STLF-1504-8) : Musical Instruments
STLF-1804-4-R | REFURBISHED: 18" 450W Raw Woofer Replacement Speaker, 4" Voice Coil, 4-Ohm – Sound Town
Fusion Boat Subwoofer SG-S10W | Signature 10 Inch 450W Peak Black