English: A en:subwoofer en:loudspeaker enclosure is braced in "all" directions, front to back and side and top to bottom. It is only about 8 ct ft but uses four layers of plywood for 2.5" thickness and 3" baffle to virtually eliminate cabinet flex and vibration. Fits an 18 inch driver and is meant to play low enough for plywood modes to not be activated. Enclosure is crudely built.