The QS 115A subwoofer is the ideal companion for QUBE models Q 110A and Q112A two way speaker systems providing extended low frequency reinforcement down to 38Hz. A 15” front facing dual coil woofer is housed in a compact bass reflex designed cabinet. Built-in HHD system: consisting of a 1000 w RMS Class D PWM amplifier along with digital processing. The QS 115A when used with the Q110A or Q112A creates a powerful 3 way system for FOH, stage side fills as well as for drum and keyboard monitoring applications. Equipped with a 1⅜” (35mm) top mount speaker stand socket and six M -10 fly points, the QS115A cabinet is constructed with 18 mm. (3/4”) Baltic birch plywood that is also internally braced to prevent undesired resonance and is finished with a durable scratch and scuff resistant black paint.