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In Reply to: Re: Close-here's the real dope. posted by Bill Fitzmaurice on December 19, 2002 at 13:13:02:
-Oops! -didn't mean to imply that efficiency per se was a function of area, but I think you have answered my question in that the theroetical radiating area needs to be established in other to predict what other issues you will encounter.-Thanks, Bill! -I think I'll investigate some of your posts "over there"!!!
Keith A.
Follow Ups:
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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