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In the Forum: Horn-Loaded Speakers
In the Thread: Vitavox’s S2 Survival Guide.
Post Subject: Dumping that diaphragm…Posted by Romy the Cat on: 3/27/2006
 cv wrote: |
| Regarding what effects the larger horn will have: my gut feeling is that the larger air mass will provide more damping anyway. It may be that there's an optimal bug screen "density" that varies with the air loading? |
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This is very good direction to think I have thought about it a 3-4 years back. You are proposing that is the throat reactance of the S2 horn would be higher (more air-mass in the horn bell) then the S2’s cone would be more dumped and will be less “poisoned”. The problem that I have experience when I tried to implement it was: how to increase the throat reactance and at the same time to pressure a shorter horn.
I have tried to increase the acoustic impedance of the bug screen by laying there the semi-transparent acoustical material. It defiantly “helped’ in some areas but at the same time it did create some damage in other areas. I think to do it properly it should be manufactured a new bug screen with twice more smaller size of each sell and perhaps twice thicker, as the bug screen also acts and a very effective defuser. I did not do it but if I come across the “ready to go screen” I would defiantly try. Another area of expiration for you if you wish is the back chamber of the S2. It is a clean metal with a lot of reflection at HF. By layering it within it’s perimeter with the 3M’s made Brillo sponge (or similar) yo0u might silently change the Sound.
Rgs,
The Cat
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