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Post by eyeballlll on May 3, 2021 17:40:36 GMT
Greetings acoustic masters. I am moving to a new room, 12' x 10 ' x 8'. I know it is little small, and I heard small room tend to have bass problems, so I am trying to build a bass trap to give my listening position a better low end response.
I know almost nothing about acoustics, except the fact it is difficult and complex. I did some research online and decided to build 2 of "soffit bass trap", like the one in the picture that I found online, and place them into my front wall corner. I believe that is a 16"x17" filled with Rockwool Safe'n'Sound. I was told that more surface it covers more bass it absorps, so I am making a 16" x 24" dimension, or maybe little longer, and put the longer side going along my front wall, from floor to ceiling. I will also make few more acoustic panels to place by side and on the ceiling, using S'n'S because it is actually available in my local store without costing me too much online shipping cost.
I also heard that more "fluffier" the stuffing is for this size of bass trap more bass it would absorp, so maybe a R-19 wall insulation would work better than Safe'n'Sound and also cheaper? and I do saw many conflicting opinions on these, so I was hoping if someone could explain this little more as well. Or if there would be any way for me to resolve bass problems with about the same cost, I would be happy to learn.
Thanks in advance!
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Post by Hexspa on May 4, 2021 10:21:28 GMT
Theoretical/academic acoustics is hard. Practical acoustics in small rooms is easy: keep adding absorption until you get the result you want. Of course, there are additional guidelines but if you add enough of these soffits into your room, eventually you're bound to stumble on a good result.
Two of them is a great start. Try adding 18 more.
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Post by eyeballlll on May 4, 2021 16:22:20 GMT
Two of them is a great start. Try adding 18 more. I hope I would still have some air to breath after that! I live in US, and my local stores almost only carry Johns Manville at the moment. Do you by any chance know if they would work as well as OC or RW? And should I buy fluffier or more rigid materiel? Calculator says I should go fluffier ones, but I wanted hear from someone with real experience. |
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Post by Hexspa on May 4, 2021 18:54:41 GMT
I have JM insulation in my super chunks. Fluffy is fluffy, for the most part. Any marginal difference in performance will be offset by quantity of panels.
Now that's some news that should make you breathe easy!™
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Post by eyeballlll on May 5, 2021 18:42:58 GMT
I have JM insulation in my super chunks. Fluffy is fluffy, for the most part. Any marginal difference in performance will be offset by quantity of panels. Now that's some news that should make you breathe easy!™ Yes I feel much better now lol
I was struggling to find anything that is little more fluffier among JM insulation, because I found my local store only carries JM at the moment. I guess I will just buy whatever is available and work on quantity more. |
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Post by Hexspa on May 5, 2021 19:32:52 GMT
I don't think I mentioned it in this thread but, in general, you want to support each layer of fluffy so it doesn't compress itself. Anything will work like a metal mesh or tie wire like I used.
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Post by eyeballlll on May 7, 2021 0:23:09 GMT
I don't think I mentioned it in this thread but, in general, you want to support each layer of fluffy so it doesn't compress itself. Anything will work like a metal mesh or tie wire like I used. Oh actually I think I did saw your video somewhere when finding advices and saw that comment. Thanks for letting me know!
One last question if you would teach me little more: although I am thinking it would be marginal differences, but is it ok for me to use faced insulations for that "soffit bass trap" like the one in the picture? For now there are only faced one in my local store.
I was thinking to use the faced side horizontally - facing only floor or ceilling to minimize the mid-high reflection. I was told that sometimes it is good to have that reflection, but I wasn't sure that would work in my room where already had too much reflection spots.
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Post by Hexspa on May 7, 2021 13:03:54 GMT
Think of it like this: there's no such thing as 'faced' insulation. There is only insulation and insulation with paper glued on to it. Think about insulation - it's a really crappy surface to glue things on. Even worse to hang paintings from. The FRK can be torn asunder whence it's adhered.
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