Internal bracing - How critical is rounded edges for sealed sub? - AVS | Home Theater Discussions And Reviews
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post #1 of 13 Old 07-26-2013, 05:06 PM - Thread Starter
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I just realized that I did not round the edges of my bracing for a sealed Dayton 18" HO build. Its a 3.6cuft box that will have about 3lbs of stuffing. I could try to get in there with sandpaper but that will be a pain ...

Thanks, Chad
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post #2 of 13 Old 07-26-2013, 06:32 PM
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I don't think you have to round over bracing for a sealed box.
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post #3 of 13 Old 07-26-2013, 06:46 PM
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With a sub don't bother, they're far too small to diffract ten foot and longer wavelengths.

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post #4 of 13 Old 07-27-2013, 07:28 AM
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Is it necessary to round over the edges in a speaker build versus a sub?
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post #5 of 13 Old 07-27-2013, 07:44 AM
 
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Is it necessary to round over the edges in a speaker build versus a sub?

Learn from others. Learn from your own experiences. How many great-sounding speakers have you listened to that have square corners? Probably 2 gazillion more or less.

Diffraction at high frequencies is real, and can be measured. But out in the room with all the other things that are going on with the walls, ceiling, & etc., not so much.
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post #6 of 13 Old 07-27-2013, 07:48 AM
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"With a sub don't bother, they're far too small to diffract ten foot and longer wavelengths."

+1

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post #7 of 13 Old 07-27-2013, 09:10 AM
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I don't think Chad was talking about the front face of the speaker, he said the bracing. He also said he could get inside of it with sandpaper if needed so he is definitely talking about bracing.

I don't think that matters at all on a sealed enclosure.
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post #8 of 13 Old 07-27-2013, 12:44 PM - Thread Starter
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Definitely internal bracing .. Thanks!
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post #9 of 13 Old 07-27-2013, 08:43 PM
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Definitely internal bracing .. Thanks!

The only reason I rounded mine was to keep my OCD in check biggrin.gif

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post #10 of 13 Old 07-28-2013, 06:30 AM
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I was referring to the bracing on a speaker, not a sub. I will ask again, is it important to round over the internal bracing on a speaker?
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post #11 of 13 Old 07-28-2013, 07:04 AM
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Quote:
Originally Posted by Martycool007 View Post

I was referring to the bracing on a speaker, not a sub. I will ask again, is it important to round over the internal bracing on a speaker?
Only if the edge face of the brace is close to a wavelength in dimension within the pass band.

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post #12 of 13 Old 07-28-2013, 07:41 AM
 
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Quote:
Originally Posted by Bill Fitzmaurice View Post

Quote:
Originally Posted by Martycool007 View Post

I was referring to the bracing on a speaker, not a sub. I will ask again, is it important to round over the internal bracing on a speaker?
Only if the edge face of the brace is close to a wavelength in dimension within the pass band.

Subwoofer pass band runs up to what, 150 Hz?

Wavelength is something like 7 feet...
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post #13 of 13 Old 07-28-2013, 09:31 AM
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The only reason I rounded mine was to keep my OCD in check biggrin.gif

Lmao, its the gift that keeps giving.....
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