4x PRV 12W750A 12" Alto Series Pro DJ/Studio Speaker Subwoofer Sub. 750W 8-Ohms.
Amazon.com: Alto Professional TX212S - 900 Watt 12" Powered Speaker Subwoofer with DSP, Selector for Companion PA Speaker and Class D Amplifier with Overdrive Protection, black : Musical Instruments
Alto TS315S - 2000-Watt 15" Powered Subwoofer @ The DJ Hookup
Alto TS212SUBXUS TS212SUB 1250-Watt 12" Powered Subwoofer | AVSuperstore.com
Alto Professional HK10457 18" Woofer For TSSUB18 | Full Compass Systems
Alto TS Sub 12 ACTIVE 600 WATT 12" SUBWOOFER
Alto ELVIS-12S 12" Passive Subwoofer Speaker Cabinet
PRV Audio 12W800A 12" Alto Series Professional Woofer 8 Ohm
ALTO TS312S 2000-WATT 12" Powered Subwoofer — AV Now Fitness Sound
STLF-12GA | 12" 300W Cast Aluminum Frame Woofer, 3" Voice Coil, Replacement – Sound Town Inc
Best Buy: Alto Professional Truesonic 12" 300W Powered Subwoofer Black 122048
Alto Professional TX212SXUS Rugged Dynamic 900 Watt 12" Subwoofer 816311011846 | eBay
Kali Audio WS-12 12” Powered Subwoofer | Alto Music
Alto TS312S 12-inch Powered Subwoofer | Sweetwater
Alto Professional - TRUESONIC 3 Series > TS312S
ALTO TS312S 2000-WATT 12" Powered Subwoofer — AV Now Fitness Sound
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
