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.Your proposed speaker looks great-kind of like an updated version of the old Allison 9 speaker(one of my favorites).
Any reason not to use quarter-round radiuses rather than the angle cut on the front face(s)?
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.Mounting the sub on the bottom will be easier to build.
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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.
It's matching the radii to the bottom miter that's the difficult part.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?Large radii shown. I cannot build this (now).
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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