Cat's out of the bag: the rectangle in the line sketch is simply a 6" thick piece of Owens Corning 705-FRK (or similar) that will strongly attenuate the output from the cone mid in that direction.
Better absorption than reflection, I think, since with a rigid reflector there is an opportunity for the sound to diffract around it.
Better absorption than reflection, I think, since with a rigid reflector there is an opportunity for the sound to diffract around it.
I don't know how to build large radii. Ideally the enclosure would be a full semi-cylinder (or even a full cylinder) with just enough flat so that the drivers can mount easily.
You know, I just thought of something. Maybe I can slit a big Sonotube lengthwise and insert the baffle into the slot, slightly expanding the tube, and then fiberglass inside/veneer outside...
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Joined 2009
Do you mean a down-firing mount? The only problem is that I have no idea how it will low-pass the sub's output.
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Joined 2009
One of my old projects was an OB speaker like the Linkwitz Phoenix, but with a panel that had 3" radius edges. I bought 3" radius quarter round plywood from a company in California and joined it to the panel with biscuits and glue. It worked fine, and the price-even shipped-was not outrageous. The same place has larger radiuses and mdf quarter-rounds as well.
Can anybody tell me how much one of these boxes would cost to build?
Outer dimensions are 500 mm wide by 450 mm deep by 1000 mm tall, 6" radii in front, 45-degree miter at bottom. 3/4" MDF construction with 2-3 shelf braces.
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