RS1500A is a 15-inch active subwoofer with a built-in 1000W Class-D amplifier. It provides balanced 2x XLR inputs and stereo XLR outputs, plus stereo high-pass outputs with a configurable crossover (55–150 Hz) and phase switch for precise system alignment. The internally braced solid wood cabinet features a heavy epoxy finish and a 1 3/8\" pole mount. Frequency response 54–123 Hz; max SPL 117 dB; weight 30.4 kg.