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Discussion Starter #1 (Edited)
Hi! My small living room/home theater is almost finished. The dimensions are (HxWxL): 2.7m x 2.95m x 4.35m.
The ceiling is covered in bamboo panels aligned in checkerboard fashion: http://www.artpole.ru/catalog/kollektsiya_vaults.html.
Walls are covered with wallpapers from a natural "rattan" material http://cosca.ru/catalog/wallpapers/premium?productid=2002.
Floor is carpeted with this http://www.carpet-service.ru//userfiles/shop_cat_images/siesta_key_25_200px.jpg.
The far side of the room has a window and balcony door segment which is covered with heavy drapes.

Please, see images of my room here: http://imageshack.us/g/1/9950427/ Take notice of corners and screen/rear speakers placement.

2x Meyer Sound HD-1 monitors are standing in the corners where the drapes are. Right now there are still many problems with the acoustics:
1) Bass is boomy around 123Hz and there is a severe dip around 100Hz.
2) I can still hear parasitic reflections from the side walls - first reflections treatment is needed.
3) When I hanged the drapes I immediately noticed that sound became more "dead" than "alive". I can't say I like that.

So I did some research and found several companies which specialize on studio/room treatment. Among them Vicoustic visually and ergonomically fits me best.

I would like to know experts' (or users') opinions on these products:
Basstraps: http://www.vicoustic.com/VN/Musicbroadcast/produtoscatsub1.asp?cmd=reset&Id=29
Absorption: http://www.vicoustic.com/VN/Musicbroadcast/produtoscatsub1.asp?cmd=reset&Id=27
Diffusion: http://www.vicoustic.com/VN/Musicbroadcast/produtoscatsub1.asp?cmd=reset&Id=38
 

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I am sure that others will chime in, but foam does not work very well for bass trapping, especially for lower frequencies. Most of our members use multiple layers of fiberglass, like Corning 703. If you prefer to buy, our friends at GIK make excellent bass traps. I have had several in my HT for 4 years and they made a huge improvement. Check out:

http://gikacoustics.com/product-category/broadband-bass-traps/

They have fantastic customer service, by the way.
 

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Discussion Starter #4
I like their prices more than Vicoustic's :) Is this stuff real? I know it's popular and probably sells well, but where can I see some before/after graphs with photos?
 

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Yes, they are very real. I have GIK Monster Traps in my HT. Post a drawing of your room, including where the subs are/will be and the seating locations. bpape will likely chime in with very good suggestions. He helped me out a great deal when I put in my traps. He will also explain why the foam does not work.
 

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I looked for before & after absorbtion measurements, just see one graph on the website...so that's no help. Seems like I don't see foam as a good absorber either, probably why they don't have meaningful measurements on their web page. I would stay away form that stuff.
 

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Discussion Starter #7
Actually they have (if we talk about Vicoustic) absorbtion graphs for all their products, and they don't look half-bad... on graphs, that is. I will post the photos of my room and measurements later.
 

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I see the absorbtion graph on their site, but what does it mean? That is a measure of the room with the trap installed. Did you see the measurement graph before the bass trap was installed. I could not find that info, so I don't know how the trap affected the graph.
 

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Discussion Starter #9
I was talking about this kind of graph.

It shows absorption coefficients on different wave lengths. It doesn't show, however, how much material you need to absorb X dB on a given wave length. Or maybe I simply don't understand it.
 
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