no, the outside walls of the sub box appear to be sprayed with a line-x type material. All that is , is 4 square boards (sides) two square boards (top/bottom). The bottom board is moutned a few inches up to allwo for sub travel and air movement. Looks liek a jigsaw was used to cut the bottom of two fo the side boards. Someone could build this exact box for you for less than $100.
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