This bass reflex loudspeaker cabinet uses a 470mm (18') driver and is designed to provide high power low frequency for LFE applications or as sub bass support for smaller systems. The drive unit uses a conventional motor system with all aspects optimized for low distortion and low frequency extension. The cabinet will typically be driven by a bridged pair of amplifiers providing 1200W RMS and is 95 dB/watt @ 1m efficient. Cabinet size is 1175mm by 750mm by 500mm (HWD) Construction is from 50mm dense particle board (Front) and 36mm (all other panels) with multiple internal braces. The finish is fine black spatter paint.