For the sub, I used BoxPlot to get the size. PiAlign requested a 10cu
ft box. BoxPlot wanted something like 20cu ft. I picked 4cu ft
because the response didn't get wrecked too badly (higher F3), and it
fit the space. The box was a little tricky to get the angled cuts
right. The back and the front aren't the same width, so the two pairs
of side pieces are different also. Gluing and clamping was also
interesting because of the angles. I glued one pair of sides at a
time, not all at once. The center is a plain box. The internal size
is quite a bit smaller than the outsite would imply. It just has
a couple of partitions to make it right. Again, I used BoxPlot to
get the size and ports. The finish on both is layers of oil, and/or
wipe on poly or shellac, and wax.

> also, do you think the fostex based centre would match with the 2 pis?

Playing stereo music in faked surroud mode, the center sounds really
nice. I do have 2 Pi's for left/right. It all seems to match well.

I built a pair of speakers for the living room that are also Fostex.
Those are FE207's in TQWT boxes along with a RS piezo. They sound
nice too. Those were built first, so that's why I stayed with
the Fostex.

Chris