I have built a 10 cu ft sealed enclosure with a removable or changeable baffle, so I can easily remove extremely heavy drivers, or switch driver sizes. This will allow me to more accurately measure a drivers TSP's with the WFT3, to see the effects of stuffing, different volumes by adding material and to have a control enclosure for testing drivers. It's nothing pretty, or deadly accurate as it's not something that will be used permanently. Built it with a jigsaw, sabresaw and a power drill in 2 afternoons. Dimensions are 24.5" x 24.5" x 36.75". The driver mounts in with 12 1/4" x 3.5" bolts into a 2x2 with t-nuts and is sealed with weather stripping.