Doubling rate for a 1/2 wavelength (WL) exponential bass horn design vs 1/4 WL

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Yes in a 1/2WL the length doubles, the throat area should be the same but is the doubling rate the same as a 1/4 WL?? This would make the mouth area much larger.

Planning to make a 35 Hz 1/2 WL folded bass horn for PA work. Need about a 195" length, doubling rate for a 35 Hz 1/4 WL is 22 inches but does this apply to a 1/2 WL design too. The mouth size will then be automatically determined by these two parameters.

Any help appreciated.
Rafaro

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Topic - Doubling rate for a 1/2 wavelength (WL) exponential bass horn design vs 1/4 WL - Rafaro 11:16:10 12/11/14 (4)

RE: Doubling rate for a 1/2 wavelength (WL) exponential bass horn design vs 1/4 WL - Paul Eizik 09:38:02 12/12/14 (3)

RE: Doubling rate - Rafaro 18:12:53 12/12/14 (2)

RE: Doubling rate - Paul Eizik 10:47:23 12/13/14 (1)

RE: Doubling rate - Rafaro 15:11:42 12/17/14 (0)

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