Bose ShowMatch SMS118 Black Active subwoofer 3000 W29 Hz 300 Hz, 3000 W, 92 dB, 4 , IPx4, 2 x Neutrik NL4 Bose Professional ShowMatch SMS118 subwoofers are designed primarily to integrate with DeltaQ array loudspeakers and extend low frequency response down to 29 Hz. The SMS118 enclosure width and integrated rigging allows fast integration in arrays with ShowMatch full range modules using optional array frames and accessories. The portable rated Baltic birch enclosure may also be used for ground stack