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Audio and Video Talk
Acoustics & Room Treatment
Group buy - acoustic panels
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<blockquote data-quote="Timber_MG" data-source="post: 421742" data-attributes="member: 18"><p>The density to choose depends on the thickness of panel and wall spacing. Off the top of my head Owens Corning 703 is 24 kg/m^3, 704 64kg/m^3 and 705 96kg/m^3.</p><p></p><p>When it comes to Rockwool the acoustic values vary from manufacturer to manufacturer down to how fine he material is(likewise with Glass Fibre, though to a somewhat lesser extent). NRC or density is not specifically what you're after, GFR in rayls/m is the value to look out for when comparing materials. Swedish Isover Glass Fibre for instance outperforms Owens Cornings stated values (and even there there is some controversy whether the OC data is correct), but in other regions of the world it doesn't.</p><p></p><p>When doing bass trapping it is expedient to treat all four room corners if you can. Don't do one room corner and expect much in the way of results.</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 421742, member: 18"] The density to choose depends on the thickness of panel and wall spacing. Off the top of my head Owens Corning 703 is 24 kg/m^3, 704 64kg/m^3 and 705 96kg/m^3. When it comes to Rockwool the acoustic values vary from manufacturer to manufacturer down to how fine he material is(likewise with Glass Fibre, though to a somewhat lesser extent). NRC or density is not specifically what you're after, GFR in rayls/m is the value to look out for when comparing materials. Swedish Isover Glass Fibre for instance outperforms Owens Cornings stated values (and even there there is some controversy whether the OC data is correct), but in other regions of the world it doesn't. When doing bass trapping it is expedient to treat all four room corners if you can. Don't do one room corner and expect much in the way of results. [/QUOTE]
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Audio and Video Talk
Acoustics & Room Treatment
Group buy - acoustic panels
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