QSC Triple LA112 2,400W 12-inch Active Line Array Speaker and Dual KS212C Cardioid 3600W Dual 12 inch Powered Subwoofer Ground Stack System | Sweetwater
2) QSC KS212C 12" Subwoofers with Speaker Poles | IDJNOW
QSC KS212C dual 12-inch, active cardioid subwoofer
Are QSC really providing twice the power on their new K.2 PA speaker series? - gearnews.com
QSC K12.2 KS212C Stage - Set | MUSIC STORE professional