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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: A dubious benefit of suspended floor.Posted by Romy the Cat on: 9/14/2010
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 noviygera wrote:
I feel that the best candidates are metal springs.
1. They won't compress or deteriorate quickly.
2. They work good in the used freq. range.
3. Easy to replace. Easy to tune by adding or removing springs.
4. Easy to float the entire horn by sandwiching it in springs from every direction.

Yes, the metal springs would be fine but I have ½ clearances between horns and frame, so I do not think that ¼ ich high metal spring able to case a few hundred pounds would be effective
 Markus wrote:
Make a cradle for the horn and suspend it on belts, the kind used for European roller shutters like this

The back neck if the horn will be suspended. I do not care about that part as I will have access to it. The front will be lying on the frame trusses – here what I would like to decuple the horn from the frame.   
 manisandher wrote:
One idea would be to use a number of inner tubes from tyres (tires). Townshend uses a 'wheelbarrow' tyre for his 'seismic' sinks and stands...

Yes, pneumatic would be the best but pneumatic require replenishment of air. If I thought about it before then I might devise some kind of custom made set of gaskets connected with small piping and driven from my 180psi compressor. The one that powers my Vibraplan. Unfortunately I have no time before Sunday to construct/order such a design. I think I did screw this one – probably the first major fuck up in this project. I wish I would force it before…. At this point I just hope that the mass of the horn and the mass of the frame would make the vibration do not propagate to my listening room floor. In this case the fact that the floor is suspended will be a benefit.

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