QSC K12 pair with KW181 Subwoofer – 6000W with Mixing Console – Southern Audio
QSC KW181 Powered Subwoofer
QSC KS118 vs QSC KW181 IS IT WORTH THE UPGRADE? - YouTube
West Auctions - Auction: Auction #1: Surplus of Audio, Photo, Video and Lighting Equipment and Supplies ITEM: (1) QSC KW181 Subwoofer with Padded Cover