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What type of material to use for bass traps and acoustic panels?

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Re: What type of material to use for bass traps and acoustic panels?

Postby freqdafunk » Sat Jun 06, 2020 2:42 pm

Hi all,

I am looking for a bit of advice please.

I have built 15 absorption panels which are 120mm thick (1.2m x 0.6mm). I am considering filling each panel with either:
1. 1 x 100mm thick RW3 sheet
2. 2 x 60mm thick RW3 sheets
3. 4 x 30mm thick RW3 sheets

My question is whether there is any loss of performance from having multiple sheets of RW3 rather than a single sheet due to the additional boundaries? Which would be the most effective of the 3 options.

Many Thanks,

Ed
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Re: What type of material to use for bass traps and acoustic panels?

Postby blinddrew » Sat Jun 06, 2020 3:39 pm

Whichever is cheapest/most easily available! :)
Obviously 120mm of material will give you slightly better absorbtion, but if the 100mm was at the front of the frame so that there was an additional 20mm air-gap to the wall then the difference will be pretty minimal.
I doubt, but am happy to be corrected, that there is any noticeable difference at all from any boundaries between layers.
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Re: What type of material to use for bass traps and acoustic panels?

Postby Hugh Robjohns » Sat Jun 06, 2020 3:55 pm

No, the boundaries between layers really aren't going to affect the gas flow. So as Drew says, go with whatever is most convenient/ affordable/ available.
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