Amazon.com: Alto Professional TS312S | 2000 Watt 12 Inch Powered Portable PA Subwoofer With Selectable DSP Output Modes For Matching With Companion PA Speakers : Musical Instruments
PRV Audio 12W800A 12" Alto Series Professional Woofer 8 Ohm
Alto Professional TS312S 12" 2000W Powered Subwoofer TS312SXUS