Behringer's active Pa subwoofer brings focused low-end power to a home audio setup or performance space, with a 500W Class-d amplifier and a 15-inch long-excursion low-frequency transducer at its core. A built-in stereo crossover, plus balanced Xlr inputs, outputs, and Thru jacks, helps keep the signal chain organized while the boost frequency and high cut controls give you more precise sound shaping.