Featuring a combination of leading-edge innovation, refined engineering, and unparalleled ease of use in an easy-to-deploy package, the QSC LS118 is a next-generation, intelligent, active subwoofer that's designed to complement the LA 108 and LA 112 line-array loudspeakers. The subwoofer is well suited for live venues, fixed installations, mobile entertainers, AV rental, and event production.