This speaker package from QSC contains three LA112 powered line array speakers and two KS212C powered subwoofers. An LA112 ground stack adapter, array frame, two LA jumper kits, two subwoofer covers, three speaker totes and four EM5 XLR cables are also included.

LA112 Active Line Array Speaker
The QSC LA112 L-Class powered line array is a next-generation, intelligent active line array loudspeaker featuring a brilliant combination of leading-edge innovation, refined engineering and unparalleled ease of use in an easy-to-deploy package. Delivering extraordinary audio experiences and exceptional performance via system intelligence and premium components, the LA112 is the result of a deep understanding of customer needs and application requirements. The LA112 is easy to configure and deploy for applications ranging from simple, portable plug-and-play setups, to demanding, networked high-tech AV productions and fixed installations. Solo entertainers, installers and production companies will value its intuitive splay angle adjustment and array optimization, as well as its flexible interoperability with networked audio systems (Dante).

KS212C Powered Subwoofer
This groundbreaking subwoofer is the world’s first single-box, powered cardioid sub designed for both mobile and installed applications. Powerful and efficient, the QSC KS212C cardioid subwoofer solves the age-old problem of unwanted, wasted low-frequency energy collecting on stage and at the rear of the sound system. This powerhouse enclosure keeps your bass in its place and away from your stage or DJ booth. Typical subwoofers radiate sound equally in all directions, including behind the enclosure where you don’t need it. Professional sound production companies have been able to combat this problem in recent years with complex, massive arrays of subwoofers in concert settings, changing the usual radial pattern of bass sound into a heart-shaped (cardioid) pattern that projects the lows into the crowd, not onstage. Before the KS212C subwoofer, a cardioid setup was impossible in a mobile setting, much less with a single, portable enclosure. The pounding heartbeat of the KS212C cardioid sub is its potent 3,600W (peak) Class D amplifier, with the latest in DSP technology, driving two 12 in., long-excursion drivers for chest-thumping bass. Each driver is arranged in a 6th order bandpass chamber, producing an amazing 15dB more output in front than behind the sub.