QSC KS112 2000W 12 inch Powered Subwoofer | Sweetwater
Bose - Bass Module 700 Wireless Subwoofer - Black
BOSS Audio Systems P126DVC Phantom Series 12 Inch Car Audio Subwoofer – 2300 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck Boxes and Enclosures, Hook Up To Amplifier
NEW 8" inch Bose 301 UPGRADE Subwoofer Speaker Super Bass Woofer driver 4 ohm | eBay