The WS18X is a high performance sub-bass system designed for use with small to medium Wavefront systems, in both touring and install applications. It features a 1000 watt 18" (460mm) drive unit with magnet structure and suspension engineered for maximum linear excursion. The birch ply cabinet is fitted with four pocket handles and four 4" (100mm) castors for easy deployment. It features large area porting to reduce air noise. A top hat fitting allows mid-top cabinets to be mounted on the WS18X using the HAM09015 adjustable pole. WS18X subwoofers are designed to be powered by Martin Audio MA12K or MA9.6K amplifiers.