After two years (two freaking years!!) of talking about this ML TL cabinet design for the Fostex 206E driver, my monster has come to life! The design and correction circuit is heavily based on the plans outlined by Martin J King on his Quarter-Wavelength Website. I have been building speakers based on this guy's designs since Alaska, and the sound on these units is phenomenal. If you have never heard a high quality full-range driver in a proper enclosure, you are missing out; the clarity and definition are unmatched. The bass response tends to be the Achilles heel, but by utilizing some clever properties of, well, physics, the world, and magick (of course), proper bass response is assured, paired with a bourbon-mellow mid-range and crisp clear highs.
I cut the sections from 3/4" birch plywood and laminated them together. The bright sections are from 12 ply segments that I had from an earlier attempt. The rest are 5 ply segments that were in stock at Homie-D's. I thought the racing stripe offset color was pretty cool. The finish is red-mahogany stain covered in matte clear coat poly.
Update 11.21.2011 - The general dimensions of the cabinet and a description can be found here with a detailed set of plans located here.