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Challenging Room Node

I have a dedicated listening room that I have treated with GIK panels in the corners, first reflection points and behind the speakers.   I have had my 800 D3's in a number of positions and thought I had them locked in.  I ran some frequency sweeps using some test disks.  There is a node at 60hz so bad that the narrow frequency almost disappears.  When I stood up to move about the room it came back with a roar as soon as my head got above 4 1/2.  I was always thinking in 2 dimensions but evidently my room (17.25 x 23.13 x 8.54) has some vertical issues.  

I have mitigated pretty well by moving the speakers closer to the read wall but i give up some clarity.  I also think the speakers sound more dynamic when I stand.  Anyone encounter this issue and mitigated it?
jwalsh31

Showing 1 response by erik_squires

erik_squires
15,632 posts
 
The basic GIK panels wont work well at these frequencies.

You need Soffit traps or Tri Traps.  Stack them up in the corners so they reach up to the ceiling as much as possible.

The professional room solution is often a combination of bass traps + EQ.  See if these traps at least improve the null you are having. If so, and you are using Roon or any other EQ already,you can then use a little EQ to correct. :)

Let me know what you do and what you find.

Erik

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