2. misc-audio
  3. 1174178776

Can you correct nulls with acoustic treatments.

I have Magnepan 1.6's. After hearing a musical clarity I really liked in a listening session at someone else's house, I broke down and bought a Rat Shack SPL meter and dowloaded some test files. I wanted to see if it was the acoustics or the type of speakers and system that made the difference.

A brief testing showed a 65 to 80 hz., 5 or 6 db. bump (the drywall bump?) that I had expected. What I didn't expect was 10 to 15 hz. wide nulls (-10,-15,even -20 db.) at several other frequencies.

I tried moving speaker positioning and the frequency of the nulls moved but the pattern was basically the same.

Acoustic treatment to tame + nodes seems intuitive. Can you treat nulls or is this a different problem?

Would really appreciate your thoughts.

Jim S.

stilljd

Showing 1 response by jlambrick

jlambrick
138 posts
 
I had a deep null in mid to low bass right where I wanted to sit. Then I noticed that the bass would almost blow your hair back in other parts of the room. I made a series of bass traps and I wouldn't have believed anything could be so effective. It's still slightly peaky at certain frequencies but not bad. I'll probably get a digital eq eventually.

BTW, my listening room (built before I moved into the house) is of horrendous dimensions. Very close to 1 x 2 x 4.
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