I Built the baffles out of MDF they are a clone of the spatial X-2.................Those baffles were tossed, I am changing direction and had no use for them and no where to store them
Easy to build IMHO I cut 16 matching squares at 21" X 21" glued up 4 sets of 3 squares and 2 sets of 2 squares. The 3 thick were the speaker baffles. I routed the 14" circles out of all 6 pieces. the pair that were 2 panels think I cut in half. I attached the 2 thick now cut in half panels 1 each to the 3 thick panels centered on the back side. This acts as the supports. Now I attached spikes and footers to the bottoms as seen in the pic. I never got around to finishing them.
If the W-15 dont sell I wont mind. They are great bass drivers that got down to 28 Hz in my room on the 21" X 21" open baffles. Hard to say just how deep they might go on a larger baffle
Joe