QSC KS118 3,600W 18" Powered Subwoofer | Guitar Center
QSC E218SW Dual 18" Passive Subwoofer, Black - ProAudio.com
Replacement QSC 18" 1000-Watt 8 Ohms Sub Woofer Speaker For QSC HPR181 Series 647356208416 | eBay
QSC KS118 3600W 18 inch Powered Subwoofer | Sweetwater
QSC KLA181-BK 18" Active Line Array Subwoofer, 1000W | Full Compass Systems
2) QSC KW152 15" Speakers with 18" Subwoofer | IDJNOW
QSC KS118 18" 3600W Active Subwoofer KS118-NA B&H Photo Video
QSC Gp218-Sw-Bk Dual 18" Subwoofer; Same Acoustical Performance As The Wl218-Sw, Rectangular Enclosure With 16 X M10Suspension Points; Available In Black - Technostore
QSC KW181 18-Inch Powered Subwoofer with Cover | PSSL ProSound and Stage Lighting