Posted by Earl Geddes [ 69.209.185.66 ] on February 28, 2005 at 12:36:23:
In Reply to: Re: So you are saying posted by akhilesh on February 28, 2005 at 11:51:03:
First I ballpark the design by calculating what a 15" piston directivity would be and what a waveguide should be to match at 90°. Then I set up the system and measure the complete polar response of both drivers in the actual enclosure. Finally a crossover is designed and optimized with a computer program that I wrote to give the flatest response over all angles in the forward 90° arc, with a slight preference for 22.5° (the direct angle).
Finally, of course, the crossovers and systems are tested at all polar angles (these results are shown on my web site). I have never seen a situation where the measurements and computer predictions were not the same, so this last step is a simple confirmation.
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