Amazon.com: Seismic Audio - Package - Two 18 Inch PA Subwoofers PRO Audio Band Speaker Cabinets Sub - Band, Bar, Wedding, Karaoke, DJ, 18" Cabs 1000 Watts RMS : Musical Instruments
Electro Voice EVX-155RMD 15-inch High Power Speaker
Amazon.com: Sound Town 18” 1000W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-18500A) : Musical Instruments
Celestion FTR18-4080FD 18" Professional Cast Frame Speaker 1,000W