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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: directivity gain - Leach/ Dinsdale/ Edgar/ Voight posted by rick57 on December 30, 2006 at 20:08:57:
Happy New Year!FWIW I don't recommend using Tractrix down this low unless the flare frequency is at least 0.7x the desired Fc, but then you wind up with a ~hyperbolic once you cut off the oversize mouth, so might as well use Leach and attach an expo flare to it if you want a shorter, lower distortion horn.
I assume that there's some combined formulas to predict all this, but even if I've seen them I just skipped over it since it's literally 'Greek' to me, so you'll probably have to start a new thread for this info. MJK's MathCad worksheet attempts to predict the on-axis response, but it assumes a round horn and apparently only ~accurate with a conic expansion.
BTW, it's Voigt.
GM
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Follow Ups
- Re: directivity gain - Leach/ Dinsdale/ Edgar/ Voight - GM 18:08:30 12/31/06 (1)
- Tractrix/ Leach/ Schell - rick57 00:51:30 01/01/07 (0)
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