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Post by linas on Apr 14, 2023 6:39:04 GMT -6
Hey guys,
I want to make me some thick huge acoustic panels.
I'm looking at ROCKWOOL STEPROCK SUPER stone wool, isn't 140 kg/m3 too dense for what I want? I've read that it should be around 100 kg/m3 to control the mids and lows
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Post by Tbone81 on Apr 14, 2023 8:41:12 GMT -6
How thick are you wanting to make them? Once you start getting thicker then about 6-8” you can use less dense material, that has less flow resistance. Like Roxul Safe n Sound
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Post by linas on Apr 14, 2023 9:34:11 GMT -6
I want them to be so thick that they would stand on the floor by themselves so yeah, 6-8" easy, more like 30 cm which is around 11" I think
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Post by Quint on Apr 14, 2023 15:48:06 GMT -6
I want them to be so thick that they would stand on the floor by themselves so yeah, 6-8" easy, more like 30 cm which is around 11" I think I'd be looking at Safe n Sound or even attic insulation (pink fluffy, as it's generically called) if you're talking about that sort of depth. Go here to play around with absorber depths and gas flow resistivity (GFR) values to determine the best GFR for the depth you want. The thicker the trap, the lower you want the GFR to be. GFR kind of sort of correlates with density, but not exactly, so the lower the density, the lower the GFR tends to be, but you still really want to choose products based on demonstrable GFR values. www.acousticmodelling.com/8layers/multi.phpThen go here to see what product has the appropriate GFR, that is available for purchase where you live. On the last few pages of this thread, is also a few posts where the relevant spreadsheet is updated and linked, where the everything is listed. gearspace.com/board/studio-building-acoustics/625978-common-gas-flow-resistivity-numbers.html |
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Post by Tbone81 on Apr 14, 2023 16:21:50 GMT -6
I want them to be so thick that they would stand on the floor by themselves so yeah, 6-8" easy, more like 30 cm which is around 11" I think If you’re looking for serious bass trapping go fo 11”. For more of a generic broad band absorption 6-8” will do you well. |
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Post by copperx on Apr 15, 2023 10:29:58 GMT -6
Curious -- are you going to cover all your walls with the panels?
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Post by linas on Apr 18, 2023 5:57:24 GMT -6
Curious -- are you going to cover all your walls with the panels? I want one on the front wall (yuuuge window), in the front corners and on the left/right. There is a huge wardrobe on the back wall, it will be filled with soft stuff and the doors will be left open, so it will act like a big-ass bass trap  |
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Post by Ward on Apr 24, 2023 10:12:46 GMT -6
You have a good plan, linas, and YES cover them! Two layers of a durable cotton blend upholstery fabric from any local fabric/sewing outlet store. There's always one with 5 miles of a retirement home as old ladies love to sew! (and so do I even though I am neither old nor a lady HAHA) |
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Post by tonygunz21 on May 9, 2023 16:36:51 GMT -6
Safe and Sound may be your best bet.
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Post by linas on May 28, 2023 16:32:26 GMT -6
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Post by notneeson on Jul 25, 2023 10:46:37 GMT -6
Ideally you'd want to start at more like 160mm depth and up for broadband. |
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