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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Re: Horns and Room size posted by Simmonds Mathews on May 3, 2001 at 23:37:00:
Simmonds---It's the shape of the horn not the flare-rate that controls directivity. Take our old friend the Altec 511 horn, an example of a radial horn. The sides are straight and pretty well control horizontal dispersion at 90 degrees (the horn from the top is a 90 degree sector of a circle which is why these types are also called sectoral horns), for some reason beyond my ken staight horn walls control dispersion. Now the top and bottom walls of the horn are the walls that have the curve, the flare rate, these don't control dispersion vertically and as frequency goes up vertical dispersion narrows. Constant-directivity horns usually use stepped flat surfaces in both directions. There's an article on the Peavey web site that gives a good description of how this stuff works, I get over my head talking tech instead of preference.
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Follow Ups
- Re: Horns and Room size - Tom Brennan 22:06:34 05/04/01 (1)
- Re: Horns and Room size - Simmonds Mathews 09:14:56 05/05/01 (0)
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