How to tame your diffractions
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 17th August 2019, 07:36 PM #21 TroyMcC diyAudio Member   Join Date: Mar 2018 Quote: I cannot agree with this statement in general. As I have shown, you can design a baffle to work best under a single angle and this angle can be whatever you like. It can also be straight in front of the speaker. The statement holds true, however, for symmetrical speakers since in this case the diffractions due to the left edge and the right edge overlap. Tilting the speaker will seperate the diffraction pattern so that they will partly compensate each other. According to the pictures in the link you provided the cabinets in question seem to be symmetrical. The same can be said regarding the 30° rule of thumb. If a speaker is designed to give the least deviation at 0° then the 30° rule of thumb doesnt apply.
graaf
diyAudio Member

Join Date: Jun 2007
Quote:
 Originally Posted by TroyMcC As I have shown, you can design a baffle to work best under a single angle and this angle can be whatever you like. It can also be straight in front of the speaker.
I do not reject this statement. I do believe that You can indeed

BUT You need more than the optimized baffle shape*

Quote:
 Originally Posted by TroyMcC If a speaker is designed to give the least deviation at 0° then the 30° rule of thumb doesnt apply.
Yes, "IF"
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"high phooey and hystereo" - Yascha Heifetz

Last edited by graaf; 17th August 2019 at 08:31 PM.

 17th August 2019, 08:35 PM #23 graaf   diyAudio Member     Join Date: Jun 2007 * because: What are some good example of baffle design to improve diffraction therefore You need a special speaker driver too: What are some good example of baffle design to improve diffraction __________________ "high phooey and hystereo" - Yascha Heifetz

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