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Old 17th March 2012, 07:29 PM   #1
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Default why is area round high driver shaped like this?

Hi all

I am wondering, why is the area around the high freq drivers sometimes oddly shaped / rounded like in these Genelecs:
Click the image to open in full size.

Cheers

Erik
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Old 17th March 2012, 07:50 PM   #2
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It forms a shallow wave-guide, mostly for the purpose of providing a little bit of directivity control to help minimize baffle edge diffraction effects in the treble. (Together with the smooth curvature from concave to convex) It also helps match the directivity of the two drivers at the crossover frequency when done properly.
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Old 17th March 2012, 07:54 PM   #3
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Originally Posted by DBMandrake View Post
. (Together with the smooth curvature from concave to convex)
what does that mean?

(and tnx for answer)
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Old 17th March 2012, 07:56 PM   #4
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Originally Posted by erikb1971 View Post
what does that mean?

(and tnx for answer)
The wave-guide around the tweeter is concave in shape but rather than having a sharp edge at the edge of the box it curves smoothly back around - this also helps minimize diffraction.
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Old 17th March 2012, 07:58 PM   #5
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aahh I see... Tnx...

Now I was thinking... would applying such a shape of the box in case of a full range driver be useful? (apart from the fact that it looks cool)
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