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In the Forum: Horn-Loaded Speakers
In the Thread: Midbass Horns and Real Estate.
Post Subject: Sand damping topologies.Posted by Romy the Cat on: 8/22/2009
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I site visitor, whose midbass horns I heard and liked, sent me email describing how he made his 50Hz horns:
“The horn’s walls having an inner layer of 3/4 inch high density compress board and outer wall of 3/4 inch high density plywood with a 1 inch layer of sand in between to kill vibration.”
I is unquestionably that sand- damping is the best way to go. It not just damps the horn but it also helps if the floor is not stern enough. The problem is that doable-wall horns are expensive to make, larger and if they are loaded with send then they are pretty much shall stay there for good. So, I wonder if any interesting design idea might be adopted that would make use of sand- damping more “ adoptable”?
I was thinking about the pneumatic wave between the inner and outer layers that would hypothetically allow to blow off the sand but I think it will blow out the outer layer first. What might be interesting is to make the horns from thin layers but to supplement it with sand harnesses. I mean to have adjustable belts with fabric-closed sand that will be pressed to the horns. Something like this:
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