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-----------Multicell horns

Posted by RCA-fan (M) on October 3, 2009 at 07:51:39

In Reply to: Multicell horns posted by Iain42 on September 30, 2009 at 14:42:00:

Multicell horns are overlooked in my opinion.

They have a few advantages.

1: they have a very large source size verses frequency.
Each cell will have a specific cutoff for it's length and mouth area.
But you can make 9 cells or one cell-- all with the same cut-off frequency. You get a very large sound source. The large source is part of sound realism ( see Olson's book (--page 602-- "Acoustical Engineering" from Old Colony)

2: The throat geometry is quite good due to all those cells culminating in one place. ( no pinching)

3: The directivity is the same anywhere in the coverage angle of the horn sidewalls.

4: The much touted beaming of each cell is not that noticeable if you move your head just a few inches.


The negatives are they are very expensive to build, and they have an exponential flare. Having said this, I think most people would find a properly set up multicell to be very rewarding.


If you would like to see a curve of a 300Hz multicell, I will post one on my website.

You can also look for curves in ....
"Loudspeaker Handbook" By John Eargle

Best, Bill

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