Fixing room resonance or reverb?

Soldato
Joined
18 Jan 2007
Posts
19,845
Location
Land of the Scots
Hey guys, I recently got some new speakers for my office desk and I noticed they were booming at certain frequencies. After bit of messing around it seems that it is 140Hz that is causing the problem.

I took the speakers to another room and noticed no booming, after which I placed the speaker somewhere else in the office and also heard no booming at 140Hz sat in front of it. However, leaving the speaker elsewhere and moving around the room it seems that 140Hz is most prominent and boomy exactly where I normally sit at my desk.

So it seems I'm sitting at exactly the worst place for this frequency. I guess it is the size/shape of the room and possibly even the desk playing a part.

Now my question is, can I solve this issue with acoustic panels and how do I know where to place them. Do you think placing some behind the speakers and/or desk will help?
 
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