Nice project. Looking forward to how it turns out.
I bought a 2384 for the same idea. I figure anything 8" and under fits on the top and bottom flats, after milling the ribs off.
Just haven't got to it...been too busy pursuing the usual DIY wood horns.
Where are you planning on putting the ports? And what size area vs Sd?
I've played with this a bit....have done like voodooless showed, with ports out toward the surround and filling in under the cone....and have done ports directly under the center of the cone, with no fill in.
If the CD reaches low enough so that ports don't need to be real close to the throat, I've found I like the "center under cone" method best.
It has smoother response and goes a litter higher (without needing filler between cone and horn).
Extends low end response a little too, being further out in the horn.
Disadvantage is ports in the middle of the horn supposedly disrupt CD flow more than in the corners, but my experience has been mouth termination matters more than any of that. (which is why the 2384 is appealing, huh?
)
Here's a few of the builds I've tried.
Second pict is the middle one before flares glassed and painted, so the center port under cone shows better.
The secondary flares were cut to match a K-402 as best as possible.
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