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Old 3rd October 2004, 12:02 PM   #11
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Try here:

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/5802190

Regards

Charles
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Old 3rd October 2004, 01:39 PM   #12
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Default Bessel vs Line arrays

Bessel arrays have never proven particularly successful, offering few benefits to justify their complexity. Line arrays work, and currently comprise better than 90% of very high end ($100k and up) pro-sound installations because they work far better than the cluster (rectangular) arrays they are replacing. Be it a Bose 901 or a 32 box pro-touring cluster array that design approach just doesn't work very well.
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Old 3rd October 2004, 02:20 PM   #13
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I've already done the 5 x 5 square bessel array and the 5 and 7 unit bessel bessel arrays, using the amplitude weighted approach. It's actually quite simple, just a wiring configuration. The link I had for it stopped working months ago.

It works perfectly for what it is intended and that is to make an array disperse like a point source. The problem is that imaging is lost. The sound is quite interesting in that with 2 speakers the image is just a wall of sound between the speakers.

If anyone has the book or even just the wiring diagrams, please post the info, as I'd like to try it again for use as a center channel. I think the 7 unit array mounted horizontally may make a perfect center channel for HT.
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Old 3rd October 2004, 05:57 PM   #14
AJ is offline AJ  United States
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Default Just out of curiosity

Has anyone ever tried an array similiar to this? The red circles are tweeters.

Click the image to open in full size.

I'm looking for ways to use all those 49 cent drivers I have.
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Old 3rd October 2004, 09:54 PM   #15
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Quote:
Has anyone ever tried an array similiar to this? The red circles are tweeters.
That design would be a comb-filtering nightmare in both planes. With any vertical array you have to keep the individual drivers of the same frequency band all in the same vertical plane, mounted as tight as possible,
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