Will this work???

[fuzzsniffvoyage]

or maybe this




the denim has a acoustic analysis on its web site that says:

ABSORPTION COEFFICIENTS @ OCTAVE BAND FREQUENCIES ( HZ )
R-VALUE THICKNESS (MM)
125 250 500 1,000 2,000 4,000 NRC/STC
R-13 3.5” 89 0.95 1.3 1.19 1.08 1.02 1.0 1.15 NRC
R-13 3.5” 89 21 40 48 52 46 48 45 STC
R-19 5.5” 140 0.97 1.37 1.23 1.05 1.0 1.01 1.15 NRC
R-19 5.5” 140 40 53 57 63 53 63 57 STC
Sound Absorption was tested in accordance with ASTM E90-02, ASTM C423 (Type A mounting per ASTM E 795)
physical properties:

Just wondering, the Owens stuff is pricey. And their acoustic analysis:
Freq 125 HZ 250 HZ 500 HZ 1000 HZ 2000 HZ 4000 HZ NRC
OC-705 0.16 0.71 1.02 1.01 0.99 0.99 0.95

What does this mean and how to compare?

I just seen this on eBay
http://http://www.ebay.com/itm/Roxul-Rockboard-60-Mineral-Wool-Board-2-Case-6-/140656699459?pt=LH_DefaultDomain_0&hash=item20bfcae843#ht_500wt_1156

 

[Capt Hair]

Made a thread on this a while back: https://homerecording.com/bbs/general-discussions/studio-building-display/taking-off-jeans-333364/ The Denim works great! I had discovered the stuff a while back as well. Pretty easy to work with, much safer than using fiberglass or something similar. And it's sooo much cheaper!

 

[DD83]

I used a similar product inside of my diffusers. I