I have some high-quality Finland birch (multi-ply) I'm using, It's also marine-grade and void free... been using this product for years in my speaker builds... stuff is getting prohibitively expensive to use though.
I could use current plans for the One, Two and Two Towers... all my old files are long gone. Thanks!
I have Four Pi plans and some parts I've been sitting on for years... I hope to eventually make a pair and use them for my backyard parties. It's not a huge space so I might not need much more than the Two-PIs... but I can imagine the dynamics would be much better for movies with the Fours.