Acoustic treatment for corners.


Has anyone acoustically treated a corner, so that it is identical to an open area? If so, what did you use?
mmakshak
Thanks for the ideas. I have two ASC tube traps and a pair of Cathedral Sound Panels in the corner. If you look at Zargon's back wall(minus the bookcase), that is what is behind my speakers-the corner and the open doorway. It seems like the image(or some treble)is pulled more to the open side, or goes further to the open side than the corner side. There is more open space on the doorway side. There is also slightly more distance to the first reflection on the doorway side than to the corner side(I'm afraid I can't do much about that.).
Mmakshak,

If the doorway has a door, you might try closing it. I assume not from your posts.

You might also try toeing the speakers in slightly to minimize the uneven reflections off the sidewalls.

Another suggestion is to add diffusion at the reflection point on the sidewalls. This better distributes the reflection and will help with the imbalance.
I put 4 record cubes im each corner I feel that it helps some. It at least breaks up the waves and is 5 foot high full of records. Mike
So the differences between an open area and a more closed area with a corner might be due to bass differences and maybe first reflection?
Consider a door or window the perfect bass trap and if your corner has a door or window then open it and you'll then have the "identical to an open area" which you seek.

For the rest of us, bass traps and usually lots of them if they are of the resistive kind are the necessity. Diaphragmatic traps will take up much less footprint and most people incorrectly set up their resistive bass traps so as not to work at peak efficiency. They need to be pulled away from the wall equal to one-quarter the wavelength of the transition zone (i.e. Schroeder frequency) which is usually 300-500Hz and extend into the room as far as you can to work below this transition zone frequency. Get a hold of Dr Floyd Toole's latest book and it'll set you straight.