1000W 2-way 12-inch active PA speaker system with 2-channel mixer, dedicated 2-band EQ, integrated sound processor and revolutionary class-D amplifier. Just plug the receiver into the dedicated wireless port on the rear panel and you have full access to two channels of supremely stable, natural-sounding wireless connectivity. Integrated mixer features same ultra low noise, high headroom mic preamps. Powerful, high efficiency class-D amplifiers and switch mode power supply technology coupled with state-of-the-art DSP functionality. 15-inch woofer has about 40% more surface area with which to move air than a 12-inch and that translates into more bass.