The WSXa is a folded horn subwoofer which has been specifically designed to reproduce very deep bass frequencies with maximum efficiency, speed and impact. It is intended to be used with Martin Wavefront Series loudspeakers such as the W8 and W8C and also the W8 line array enclosures in the most demanding touring situations where extreme levels of bass are required. It is also ideal for reproducing the concentrated bass energy of contemporary dance music in club environments.