I'm selling a B&W ASW2000 sub. It works perfectly. These include B&W's unique Flowport system, a new ultra-low frequency 12-inch drive unit that utilizes a stiffer, lighter die cast chassis to minimize unwanted resonance. To ensure fewer demands are imposed on your main amplifier, the ASW 2000 features an audiophile-grade 175W amplifier. This supplies greater power in reserve to meet the demands of home theater sound tracks. I can't really ship this as it weighs almost a hundred pounds.