you SHOULD NOT use PLYWOOD!!... you NEED TO USE... 3/4" MDF they sell sheet at lowes or home depot... for like 30 or 40 dollars.. you need to build a box wit that kindof wood if not that might be the problem that the subs are jumping out of the box.


That what i build my boxes out of.. but i dont have the tools anymore so i cant build boxes.. or else i would build a box for ya..