The QSC AcousticPerformance AP-5122 is a professional, two-way, fullrange loudspeaker ideal for a variety of installed sound reinforcement applications requiring high power, wide coverage and compact size. The AP-5102 uses a high power-capacity, 76mm (3-inch) diaphragm compression driver and combines it with a 305mm (12-inch) woofer to deliver exceptional full bandwidth reproduction.