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Multi-Way Conventional loudspeakers with crossovers

What are some good example of baffle design to improve diffraction
What are some good example of baffle design to improve diffraction
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Old 27th August 2017, 06:22 PM   #11
sootboots is offline sootboots  Canada
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Open cell foam [supra, depending on the app] baffle is my preference.

GM


This sounds affordable. Can you show a pic or two as an example?

Thanks,
John
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Old 27th August 2017, 07:18 PM   #12
Grasso789 is offline Grasso789  Germany
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Old 28th August 2017, 12:19 AM   #13
planet10 is offline planet10  Canada
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What are some good example of baffle design to improve diffraction
TThe Sonus Faber Ellipsa (pictured earlier in the thread) was the last commercail speaker to catch my attention. It inspired our “ellipse” shaped enclosure. Wide baffle that curves away from the drivers has low diffraction and the wide baaffle allows a low XO point (160-180 Hz):

Click the image to open in full size.

We have found that the big champhers on the sides of our miniOnkens goes a long way to reducing diffraction signature, and that the trapezoid version that mimics a tear drop in plan reduces it even further (trapezoid sitting on a larger rectangular miniOnken):

Click the image to open in full size.

dave
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Old 28th August 2017, 12:27 AM   #14
Bigun is offline Bigun  Canada
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What are some good example of baffle design to improve diffraction
That ellipse looks nice Dave, makes me wonder if we shouldnt put speakers right up against the front walll with some attempt to blend in the appearance ?
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Old 28th August 2017, 12:32 AM   #15
scottjoplin is offline scottjoplin  Wales
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The Jordan VTL is 4 inches deep and recommended placed against the front wall
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Old 28th August 2017, 12:48 AM   #16
planet10 is offline planet10  Canada
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What are some good example of baffle design to improve diffraction
Quote:
Originally Posted by Bigun View Post
That ellipse looks nice Dave, makes me wonder if we shouldnt put speakers right up against the front walll with some attempt to blend in the appearance ?
They typically get put 8-10 out from the wall, closer would be difficult without moving some clutter.

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Old 28th August 2017, 02:10 AM   #17
eriksquires is offline eriksquires  United States
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So the issue with absorbent materials, is they don't absorb uniformly and can alter dispersion characteristics. This non-uniformity of absorption can make the polar plots funky.

Having said this, I am not above putting felt around a ring or dome tweeter. I find this actually helps a great deal.

Still, given a preference, and living room, I'm a wide-body fan all the way. Flat or curved, much more energy gets pushed into the room before diffraction occurs with a narrower beam, improving detail and smoothing out the FR.
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Old 28th August 2017, 02:18 AM   #18
eriksquires is offline eriksquires  United States
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Of course, one of the most if not THE most expensive uber-wide speaker ever:

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Old 28th August 2017, 02:23 AM   #19
scottjoplin is offline scottjoplin  Wales
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What are those? Swans did some stuff that looked like that
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Old 28th August 2017, 02:33 AM   #20
rayma is online now rayma  United States
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What are those? Swans did some stuff that looked like that
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