This subwoofer cabinet is designed to go through a wall. The larger portion of the box resides in a back room like a utility room in a basement. The only thing that shows in the listening room is the grill. It is just under 4 cubic feet internal net minus driver and tuned to around 19hz. Works well with a 12" Ultimax. I changed my room layout and don't need it anymore. I hate to just throw it away if someone local could use it. I am in northern Colorado. $50 . It is well built and heavily braced. Call Randy 970-302-1447