Behringer VQ1800D Professional Active 500 Watt 18" PA Subwoofer Pair (VQ 1800D VQ-1800D) - LBS Music World Malaysia
Behringer VQ1800D Professional Active 500-Watt 18" Powered PA Subwoofer with Built-In Stereo Crossover vq-1800-d - Canada's Favourite Music Store - Acclaim Sound and Lighting