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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: EV T-35 Horizontal or Vertical orientation???? posted by drlowmu on July 29, 2012 at 12:26:32:
An un-obvious aspect of horns is that when you make them have an asymmetric coverage angle where one plane is considerably different than the other is “pattern flip”.
When you go down in frequency to where one plane has lost pattern control (found by Don Keele’s “pattern control loss frequency” formula), the wide direction becomes narrow and the narrow the wide plane. The radiation is then the opposite of what the horn looks like.
For a horn that small and so asymmetric, the pattern loss frequency is very high and so to get wide dispersion horizontally, it is usually better to mount that horn vertically as most of it’s operating range is below the pattern flip range.
In general, so far as the radiation angles, its a good idea to avoid very asymmetric horn flares as what you get is not what one would think based on the looks of it. You can make a horn without pattern flip but it is not a simple shape or has to have nearly equal vertical and horizontal wall angles.
Best,
Tom Danley
Danley Sound Labs
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Follow Ups
- RE: EV T-35 Horizontal or Vertical orientation???? - tomservo 06:49:28 07/30/12 (0)
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