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In the Forum: Horn-Loaded Speakers
In the Thread: Le C'leach horn rear chamber volume
Post Subject: Forget the open-air T/S data.Posted by Romy the Cat on: 11/4/2009
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 js wrote:
Thanks for the reply.  I'm using a Jabo KH-55 horn for hf/upper mid, so I think I'll have to experiment with different size chambers.  Beyma quote the volume displaced by the driver as 5.5 litres, so I'll start by trying a 9 litre (gross volume) back chamber.

Js, you can’t imaging imagine how might irrelevant all this information. This T/S data is so much not applicable for horn loading, or at least need to be interpreted in absolutely different way then it was done in case of box speakers. The Beyma quote the volume displacement of 5.5 liters is no meaning at all. Are you planning to use it for acoustic suspension? Of course not! What the size of the volume displacement has to do with back chamber ion horn? The exertion, displacement and anything else imaginable for f a horn-loaded driver will be absolutely different then in open air and ALL T/S data shall be trashed as soon you load the driver. Do not waste your time to ask me question or even to think about it. What you do need to spend your time is to learn how YOUR driver SOUND will be changed with change of the of the back chamber volume.

The Cat

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