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How large is too large for HE?

I am contemplating making a wide bandwidth horn system as an experiment, the question is how large is too large for people other than myself (I am used to dealing with very large horns at work).

With a horn that has a sensitivity in the 108 dB 1w range at the low corner and goes down to -3@ 175Hz it appears a horn with a 30 inch dia mouth and 36 inch length would do the job but for most HE systems, this may be too large.
If not, a horn about 45 inches deep could reach 140Hz at the same sensitivity at 140.
Any thoughts?
Best,
Tom Danley


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Topic - How large is too large for HE? - tomservo 09:08:13 06/28/15 (63)

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