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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: Q about Single Driver Website tractrix calculator posted by Doug Flynn on November 5, 2005 at 00:02:35:
Hi Doug,I know that Bruce Edgar uses either a 300 or a 350 Hz tractrix horn for his Titan's for a mid driver to be used from 500 Hz and up, so that is probably a good solution.
Yes, the link you refer to will work for your application, that is, also for a circular horn.
However, for a 2" driver the throat area is not 6.25 cm2. The area of any circle is Pi x r x r, which in this case means 3.14 x 2.54 x 2.54 cm2 = 20.26 cm2
The size factor should probably be set to "1", not "4", since the horn will not be supported by any surface or wall.
A calculation based on these parameters gives a 30 cm long horn with a radius of 16,7 cm at the mouth.
Hope this helps..
Regards
Peter
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