Presonus Air XD Sub 18; active subwoofer; 18“ bass speaker with 3” voice coil; amplifier: 2000 W peak Class-D; frequency range: 41 Hz – 110 Hz (+/- 3 dB); max. SPL: 130 dB; inputs: 2x XLR/jack combo inputs and Bluetooth; outputs: 2 x line out (XLR); DSP with variable low-pass filter, delay for runtime adjustment, and presets for cardioid and endfire arrays; 15 mm plywood enclosure; integrated M20 threaded pole mount; Dimensions (H x W x D): 662 x 490 x 656 mm; Weight: 39.8 kg; Color: Black