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Best DIY Sound Dampening Materials?

Do you have any recommendations on sound dampening materials for a DIY project? I have a wonderful system, but a not so wonderfully small space (12 feet x 12 feet), and I need to dampen the acoustics off the walls and floor.

For the walls, I'm considering taking 4 inch foam (do you have any recommended purchasing sources?), cutting 4x3 foot squares, framing it, canvasing it and hanging a series of these pictures up on the walls (painting the canvas a slight hue of the wall paint). To keep peace with the girlfriend, I need to dampen my room in an aesthetically pleasing way - yes, she's worth it. So, will this work? Are there better alternatives?

For the floor, I'd like to create a removable 16x16 inch wall to trap and avoid the Allison affect. Am I crazy?

Help ... please!

Thanks
dds_hifi

Showing 1 response by sean

sean
6,231 posts
 
I think if you do a search in one of the Asylum forums, you'll find someone that did a direct comparison between the Decware Diffusers and Risch's absorption panels. For sake of removing bias from the comparison, the person had several people listen to the system and then vote accordingly. While every situation and room is different, i think that Jon's panels won by a landslide in that specific installation. Keep in mind that tonal balance WILL be altered by either of these. Both of them are relatively cheap to build. Sean
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