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In Reply to: RE: Some horn speaker technical questions... posted by Bill Fitzmaurice on August 21, 2007 at 13:41:12
So whats better anyway_
Follow Ups:
It depends on the driver and all over topology, of course. I've built folded midbass horns loaded with ten inch woofers with 100Hz-3kHz passbands. How high you can go isn't limited by the bending of the horn as much as by the low-pass function of the horn.
So Bill as you said:
"How high you can go isn't limited by the bending of the horn as much as by the low-pass function of the horn"
Then what determines the low pass function of horns? How can you get a horn to pass more HF? How do rounded reflectors compare to bending of horns?
"Then what determines the low pass function of horns?"
A variety of factors, starting with the size of the throat chamber, thence moving to the cross-section of the throat, culminating with the area of the mouth, with a few other factors in between. Mouth area doesn't affect the high frequency limit per se, but the mouth dimensions do affect dispersion, which de facto amounts to the same thing. Axial response is of little value without useable dispersion.
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