In Reply to: Technical Coupling Q's posted by Cuppa Joe on November 8, 2004 at 21:51:49:
HiIf has a program which predicts the dispersion pattern then one can see that ideal coupling happens when the center to center distance from two point sources are less than 1/4 wl apart. Mutual coupling of woofer is limited to this region for example.
At 1/3 wl CC one see's a forward lobe, at 1/2 wl one has a figure eight pattern. Greater separations result in spider like polar measurements and as the wavelength spacing increases, the number of legs increase.Fwiw, this 1/4 wl CC requirement is half that cited by one of the big manufactures of concert line arrays, good thing they didn't model or measure the assertion.
CheersTom Danley
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Follow Ups
- Re: Technical Coupling Q's - tomservo 13:51:54 11/10/04 (0)