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Old 24th June 2011, 07:58 PM   #1
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Default Damping of the speaker cabinet

I am building my bookshelf now. My cabinet is made of birch plywood but with the traditional rectangular shape so I think it need some damping.

But after some experiments I feel it sounds best without damping. I have some questions now

If I would like do the damping from small which surface of the internal cabinet I should try first? Is it the back surface of the drivers? Thanks !
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Old 24th June 2011, 08:03 PM   #2
Loren42 is offline Loren42  United States
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The back is probably the most critical.
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Old 24th June 2011, 10:36 PM   #3
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Well, it depends what you mean by "damping".

Some folks use this term to mean stuffing the cabinet (to absorb back waves, or make the cabinet volume "seem" larger). Others use the term for a treatment applied to the cabinet walls (or bracing) in order to reduce cabinet vibration.

These two issues require different techniques. What is it that you are trying to cure?
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Old 24th June 2011, 10:52 PM   #4
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There is only one way to know, and that is to measure with a mic in order to see if standing waves are causing their typical patterns on the frequency response. Then, if there are such standing waves, calculate which dimension in the enclosure corresponds to them, and dampen those surfaces first.
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