In Reply to: Re: Close-here's the real dope. posted by SSL Tech on December 20, 2002 at 06:36:23:
Well, you did hit upon one of the reasons that horn drivers work so well. A very simplistic view of the horn versus direct radiator is that a direct radiators output is radiating area (the cone)X excursion, while a horn is radiating area (the horn mouth) x excursion of the driver cone energizing the horn. If your using the same driver in both cases, one pushing air directly and the other pushing a much larger cross-section of air at the end of the horn, the horn loaded will be a lot louder without using any more energy. That's a simplistic view, again, but is as good an expanation as any. But you don't get something for nothing- the horn takes up a lot of space.
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Follow Ups
- efficiency relative to radiating area - Bill Fitzmaurice 18:32:00 12/20/02 (0)