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Old 23rd May 2012   #1
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depth of full back wall trapping
I have a choice of either 6 inch or 9 inch deep full trapping of the back wall, which is a false wall spaced out from the actual room boundary. I will have slat traps in the corners, another story..anyway...

I was originally going to go with 9. But Im trying to understand how much a difference that would make over a 6 inch depth. Another 3 inches at the back of the room would be nice, but if a extra 3 inch depth would make a siginficant difference then i would go with 9. Thanks!
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Old 23rd May 2012   #2
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What does the room need??? how deep is it?

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Old 23rd May 2012   #3
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It is 19ft deep. otherwise 10.4 x 7.1. Its under construction so this decision has to be made pre testing due to other considerations. Thanks John...wouldnt immediate intuition say more is better?
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Old 23rd May 2012   #4
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I would just go with 9" and be done with it. In fact if you can go 12"..... I will say though that if that was my room and budget was not the major factor I would go with broad band in the corners only, with diffusion and something tuned on the back wall. Might be out of your scope though if you are DIYing it.


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Old 23rd May 2012   #5
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Here is a nice thread on the topic, off course every room is different, so results can vary.

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Old 23rd May 2012   #6
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attached comparison of 6inch 9 inch and 12 inch large trap,flow resistivity= 5000rayls (appr same as pink fluffy insulation).
Attached Images
File Type: jpg 5000rayls6 inch.jpg (115.4 KB, 46 views)
File Type: jpg 5000rayls9inch.jpg (115.5 KB, 35 views)
File Type: jpg 5000rayls12inch.jpg (115.4 KB, 50 views)
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Old 23rd May 2012   #7
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Originally Posted by Glenn Kuras View Post
I would just go with 9" and be done with it. In fact if you can go 12".
Yes. Or 18 inches.

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Old 23rd May 2012   #8
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Quote:
Originally Posted by Ethan Winer View Post
Yes. Or 18 inches.

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