Ron Resnick

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You will just buy everything with "tube" in its name Ron ! ;)
That is a very insightful observation!

Unfortunately this thing apparently does not actually take a tube! :oops:
 
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Ron Resnick

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Is this instead of your active devices Ron ?
No. The AVAAs are great. I still would like a fourth one.

These new TubeTraps will replace the standard TubeTraps presently in the front corners of the room.
 

cjfrbw

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Research has indicated that as we get older, there is a slight hardening of blood vessels in our ears which sets up resonant peaks in the frequency range that is annoying- 2-4K and higher.
Yes, but isn't this countered by softening of the brain?
 
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the sound of Tao

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Ron Resnick

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I just realized a question:

I have two room modes, one at 45Hz and one at 60Hz.

One pair of Helmholtz resonator TubeTraps is tuned for 45Hz and the other pair is tuned for 60Hz.

Part of the ceiling is 9 feet high, and the other part of the ceiling is 14.5 feet high. One part of the ceiling is causing the 45Hz room mode and the other part of the ceiling is causing the 60Hz room mode.

How do I figure out in which corner of the front wall does each pair of tuned resonators get located?

Can I assume that the 9 foot ceiling is generating the 60Hz bump, and that the 14.5' ceiling is generating the 45Hz bump?
 

morricab

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I just realized a question:

I have two room modes, one at 45Hz and one at 60Hz.

One pair of Helmholtz resonator TubeTraps is tuned for 45Hz and the other pair is tuned for 60Hz.

Part of the ceiling is 9 feet high, and the other part of the ceiling is 14.5 feet high. One part of the ceiling is causing the 45Hz room mode and the other part of the ceiling is causing the 60Hz room mode.

How do I figure out in which corner of the front wall does each pair of tuned resonators get located?

Can I assume that the 9 foot ceiling is generating the 60Hz bump, and that the 14.5' ceiling is generating the 45Hz bump?
These modes are more likely the length and width of the room related. You will get other complex modes taking the height dimensions. The length and width usually cause the lowest frequency modes as these are the longest dimensions
 

Ron Resnick

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The length and width usually cause the lowest frequency modes as these are the longest dimensions
Thank you.

The length and the width are the same on both sides of the room. The only asymmetry is the ceiling height.
 

Mike Lavigne

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I just realized a question:

I have two room modes, one at 45Hz and one at 60Hz.

One pair of Helmholtz resonator TubeTraps is tuned for 45Hz and the other pair is tuned for 60Hz.

Part of the ceiling is 9 feet high, and the other part of the ceiling is 14.5 feet high. One part of the ceiling is causing the 45Hz room mode and the other part of the ceiling is causing the 60Hz room mode.

How do I figure out in which corner of the front wall does each pair of tuned resonators get located?

Can I assume that the 9 foot ceiling is generating the 60Hz bump, and that the 14.5' ceiling is generating the 45Hz bump?
find a nice double bass or cello recording with lots of growl and play around with it. something that got too thick as you pushed it before. especially the transition from behaving to breaking up. see if you can improve that musically. find something digital to allow for speedy A/B's.

or measure.

or do both and compare results.
 

morricab

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Thank you.

The length and the width are the same on both sides of the room. The only asymmetry is the ceiling height.
Your room is a square? That is geometrically the worst shape for a listening room.
 

Ron Resnick

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Ron Resnick

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Your room is a square? That is geometrically the worst shape for a listening room.
No, it is a rectangle. The front wall and the rear wall are the same width; the left sidewall and the right sidewall are the same length.
 

Ron Resnick

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IMG_0640.jpeg

IMG_0641.jpeg

IMG_0642.jpeg
 

morricab

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No, it is a rectangle. The front wall and the rear wall are the same width; the left sidewall and the right sidewall are the same length.
Ok, not what I was talking about. The long wall is likely responsible for the 45 Hz mode and the short wall the 62hz. These are standing waves based on your room length and width. There will be other modes related to ceiling height but it gets complex quickly.
 

Ron Resnick

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The long wall is likely responsible for the 45 Hz mode and the short wall the 62hz.
So does this mean it does not matter in which corner I put which pair of tuned TubeTraps?
 

bonzo75

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Please also check for negative effects of leanness or loss in energy
 
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Ron Resnick

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Please also check for negative effects of leanness or loss in energy

The new ones are definitely staying in the corners. The question is whether I want to play with diffusion side out positioned old, conventional TubeTraps behind each panel and in the center of the front wall, or just sell them.
 

AudioHR

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So does this mean it does not matter in which corner I put which pair of tuned TubeTraps?
Hmmm...interested to see what you find!

The standing waves created by the length and width dimensions likely coexist together rather than in a separate place. It is complex though and placement may make a difference. It seems to me that there is also research somewhere that says while the most dominate standing waves are said to be found in the corners that may not always be the case.
 
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Al M.

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I just realized a question:

I have two room modes, one at 45Hz and one at 60Hz.

One pair of Helmholtz resonator TubeTraps is tuned for 45Hz and the other pair is tuned for 60Hz.

Part of the ceiling is 9 feet high, and the other part of the ceiling is 14.5 feet high. One part of the ceiling is causing the 45Hz room mode and the other part of the ceiling is causing the 60Hz room mode.

How do I figure out in which corner of the front wall does each pair of tuned resonators get located?

Can I assume that the 9 foot ceiling is generating the 60Hz bump, and that the 14.5' ceiling is generating the 45Hz bump?

Ron, have you considered putting one of each type into each corner, i.e., the 60 Hz tuned TubeTrap on top of the 45 Hz tuned trap, or the other way around? What does Art Noxon at ASC say?

As for the old traps, have you tried putting them in the back corners of the room? (Honestly, I forgot what your room looks like in the back, if it even has such corners or if it's more of an open layout.)
 

fyrtom

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Carole King "Natural Woman" tape
Shure MV88




Carole King "Natural Woman" vinyl
Shure MV88u

No doubt the vinyl's piano "banging" is accented. The tone richer throughout especially the mid-lower range. Her voice is very thin in both recordings however. I'd say I enjoy the piano much better on vinyl. Thank you for sharing.
 

Ron Resnick

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Ron, have you considered putting one of each type into each corner, i.e., the 60 Hz tuned TubeTrap on top of the 45 Hz tuned trap, or the other way around?

No, I did not think of this, thank you! This is an interesting idea, if there is no discernible area of greatest pressure for each of the room mode frequencies.
What does Art Noxon at ASC say?

I did not ask him about this, but I should.
As for the old traps, have you tried putting them in the back corners of the room? (Honestly, I forgot what your room looks like in the back, if it even has such corners or if it's more of an open layout.)

There is really no room in the back corners.
 
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