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In the Forum: Horn-Loaded Speakers
In the Thread: Jessie Dazzle Project
Post Subject: Composite sandwichPosted by chaos on: 7/26/2008
i dont think its necessary to use that much expensive fabric. i will use only 1 layer of a nice looking fabric on the inside of the horn, then a cheap heavier layer, then foam.
maybe i´m wrong, but as far as i see it, the whole thing has to be stiff on the outside. will make the horn in a way to survive a "explosion" on the throat, the pressure will try to expand the horn to the outside, so it should make sense to use unidirectional inlays on the outside. inlays are much cheaper than fabric and stronger in one direction.
of course i will have to make a mold to put some pressure on the whole thing(because of the different fiber layers on the in-and outside), but this is easy. at least i hope so:-)
if you step on a board which is supported on the edges, the bottom side has to be strong. will ask in a physics forum about the direction of forces in a horn. of course they will know even less than me about horns, but this is physics..explosion at the throat of the horn.
outside of my horn will be a 4mm sheet of birch-plywood, my gf demands it;-)))
could look ok, the contrast of the different materials...hitec vs natural..
cheers,klausRerurn to Romy the Cat's Site