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Old 30th August 2007, 10:13 PM   #1
jetty2 is offline jetty2  United States
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Default UltraTouch Natural Fiber, speaker damping

Has anybody tried this material to see if this makes a good dampening material for speaker cabinet?

http://www.bondedlogic.com/ultratouch.htm

here are the NRC values

Size Thickness 125 250 500 1000 2000 4000
R-13 3.5 .95 1.30 1.19 1.08 1.02 1.00


It seems to be better than whispermat on NRC figures.

Feedbacks and comparison with other materials are appreciated.
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Old 31st August 2007, 09:29 AM   #2
sreten is offline sreten  United Kingdom
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Hi,

Looks fine for damping a cabinets airspace, but not the cabinet.

/sreten.
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Old 31st August 2007, 02:37 PM   #3
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I've been using it for damping in my U-baffle setup. Very nice. Nicest damping material I've found in my 35 years of messing around with speakers.

The only down side is a small amount of the boron based fire retardent that they use for critter, mold, and fire control will sift out of the cotton. This is a temporary condition and stops after a few weeks.
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Old 31st August 2007, 05:46 PM   #4
jetty2 is offline jetty2  United States
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Could you elaborate?

Thanks
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Old 1st September 2007, 11:51 PM   #5
jetty2 is offline jetty2  United States
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My replies show up a bit out of order as I am new in the forum, I meant stern elaborate on his comment :-)

Anyways, back to ultratouch, I happy to see somebody using it successfully. I am getting some samples to test and measure its effectiveness.

Jetty2
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Old 2nd September 2007, 12:02 AM   #6
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Old 3rd September 2007, 08:47 PM   #7
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Quote:
The only down side is a small amount of the boron based fire retardent that they use for critter, mold, and fire control will sift out of the cotton.
In what way is that a problem, dust? They seem to be perfectly safe for use.
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Old 4th September 2007, 04:44 PM   #8
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It only shows up as a fine white powder on the bottom surfaces of the baffles. Not really a problem. Cleans up easily with a vacuum cleaner with fuzzy brush attachment.

After a couple of vigorous exersize sessions playing pipe organ music at insane levels no more powder is coming out of the damping...
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