I made this cabinet out of some 13-layer Finnish plywood that was left over from a remodeling project. The cabinet for a built-in oven had to be dis-mantled, and I discovered it was made from this 13-layer stuff! Enough left to make speaker enclosures. The woofers are from MCM, 6.5" aluminum cone, and the tweeter is an Audax TM020 titanium dome. A slot-vent on the top/rear is used along with two horizontal perimeter braces. Front baffle is 1.5" thick, so is the rear baffle.