DIY Acoustic Diffusers

Presuming you have access to the required woodworking tools, or know a kind friend who does, I'd suggest looking at the ones designed by the late Terry Cain. The improvement is quite remarkable & have a nice WAF if finished properly.

Listed below is a link to the project.

http://www.melhuish.org/audio/DIYOT3.html

Cheers,
Bish

The diffusers I use are foam version of RPG's. A hot wire cutter can slice these from the pattern of your choice. Mine were built by a local guy and cost was VERY low.

Here is a link to them in my system. Click the image to make larger so you can see a little more of it.

http://cgim.audiogon.com/cgi-bin/vs.pl?vaslt&1022712214&viewitem&o6

Here are the originals:

http://www.rpginc.com/projects/inst.htm

Thanks Bish and Albert.

Albert, doesn't foam act as an asborber? I would think you'd need something harder and more reflective like ABS plastic or wood. Where do you find a hotwire cutter?

albertporter
Is there a plan you used to determine the configuration of your diffusors? Also you indicated they were foam, what size foam pieces did you start with?

I use a DIY hot wire foam cutter with a beefy variable voltage dc power supply. Just Google "building a hot wire foam cutter," you'll get a load of sites telling you how to do it.