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Changed Speaker Placement NOW BOOMY

Hello,

I have a bit of a problem. We bought new furniture for the living room where the stereo is and after replacing a couch, adding a chair and moving the speakers and audio rack down about 2 feet towards the corner and the speakers which where about 3 feet off the wall before are now about 14" off the wall.

I now have this unnatural sub boom and since I am using thiel 1.6 which have very little if any sub freq I can only assume its the room.

I understand that moving stuff around can do this, but its such a big change and I really dont have much room to play with.

Are there any cheap cheap cheap ways of fixing boom bass in a room.

The room is 12' X 26' with 9' ceilings.

If you look at my system pix the stereo is sorta in the same place with minor adjustments.

Any help would be super awesome.
128x128thegoldenear
kijanki's avatar
kijanki
4,428 posts
 
Timlub - There is a pretty good article here : http://www.ethanwiner.com/acoustics.html

It shows that my material (John Manville 817) has two times higher absorption coefficient at 125Hz than lighter 814 material (similar to common Owens Corning). It is still pretty bad for lower frequencies unless I'll go 4". Problem then is cost and WAF.

I'm not sure if reflections come from vaulted area. I think it is mostly from tall walls. I can hear echo, when clapping hands and also get better imaging at lower sound levels (echo dies faster). I had problems with previous speakers (Paradigm) resonating on upper bass frequency that was most likely multiple of bass refleks tuning. My Hyperions don't do that (why?).
timlub
2,040 posts
 
Hi Kijanki,
I asked about hearing from you vault from dealing with pro sound equiptment. Back in the old days, I actually built several systems for night clubs and church's. Inevitably, I had to deal with sound reflection and absortion from high ceilings. Without fail, when we damped upper reflections, the room was better and you could hear the difference at floor level.
I can't answer the differences between your Hyperions vs Paradigm. I've never sat in front of Hyperions, but they look great.
kr4's avatar
kr4
3,686 posts
 
Lots of varying info. How will you decide what to take as advice? ;-)

Everest: amazon.com/Master-Handbook-Acoustics-Alton-Everest/
Toole: amazon.com/Sound-Reproduction-Acoustics-
kijanki's avatar
kijanki
4,428 posts
 
"I've never sat in front of Hyperions, but they look great."

Timlub, you make me feel better. The only thing I didn't like about Hyperions was black piano finish and coffin like shape. Now it is slowly growing on me. I even realized that possible scratches on black piano finish can be easily repaired by piano repair/restoration shop while scratches on wood veneer are almost impossible to erase.
timlub
2,040 posts
 
Kal,
I've never read a thing on the subject. My Experience is just doing, doing, doing. Trial and error and being around alot of people who tried and failed many times before me. Everything that I've mentioned is proven only by me to me, But all used many times and as you can see, I've been creative more than once on making my own traps and diffusers. Now after 30+ years of mistakes, I typically am able to solve most issues, but one thing that I know is, I don't know much. If I were going to buy one of these two books, which one would you recommend?
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