The Wavefront Theatre WT UB loudspeaker has been specifically designed for under-balcony use in theatres and infill in venues requiring extremely wide horizontal coverage. The WT UB loudspeaker provides sound reinforcement for speech and music with exceptionally consistent tonal balance over the whole of its coverage angle. It also shares the same tonal characteristics as the larger members of the WT range, the WT2 and 3. The unusual driver complement and geometry is responsible for the uniform coverage of the enclosure. A triple soft dome, high frequency line array coupled with a proprietary diffusion phase plug gives very wide horizontal and tight vertical dispersion. Its narrow width allows minimal separation between the two 6.5" (165mm) cone drivers. This factor and the drivers’ 60˚ splay are responsible for the seamless horizontal coverage of the WT UB. The two 6.5" (165mm) drivers feature 1.5" (38mm) voice coils and an innovative heat exchange system to reduce power compression. A combination of ferrofluid and a rear mounted heatsink cools the high.