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

Showing 3 responses by zargon

Mmakshak, I have found corner traps to be very effective in my room. They are especially important where the walls are heavy and rigid (e.g., concrete blocks) and the bass reflects off the walls and the energy keeps reflecting around the room. A good corner trap makes the corner appear to be the same as if it were open to the outside or another larger room. It does not reduce the bass, but only the build up of modes.

Here is a link to a DIY article on how to build such traps simply and inexpensively. I chose the Super Traps which are described in Part II and made them with Thermafiber Safing Insulation which is available in local building supply houses. I recommend you buy the insulation and cut it into triangles as described and stack them in the corners to see if you like the change. You can try more or less at different heights. Then if you like the way it works, you can procede to build the front screens which are also quite simple.

See my system for pictures of the finished product. The total cost of both traps was under $150.
Thanks, Vandermeulen. For me, everything starts with effective power conditioning and proper attention to the room and acoustics. Together, they set the foundation for evaluating, selecting and assembling a system to my taste.
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.