From the QSC K Series powered speakers, the KSub Powered Subwoofer features dual 12" drivers, an internal 1000 watt class-D amplifier, extensive DSP processing for maximum amplification and sound efficiency and a threaded pole and pole mount.The KSub is designed to complement the K series full range pole mounted cabinets. Its lightweight birch enclosure makes it a solution for mobile audio applications such as professional DJ applications, mobile sound reinforcement for presentations, bands, etc. Extensive DSP processing is featured in all of the K Series powered speakers, in order to maximize sound efficiency in any environment, as well as minimize noise and distortion. DEEP, DMT and Conical Wave Guide DSP Rugged, lightweight birch wood construction Balanced XLR I/O connections Attractive and professional appearance Ergonomic handles with comfortable, non-slip grip Threaded pole and pole socket