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In Reply to: RE: Acoustic Treatment/Diffusers/ My Situation posted by paul3 on June 06, 2017 at 07:46:51
You might also need diffusion on the sidewalls and side window. While another fake ficus per wall would be useful, there are now transparent diffusors you can use there without the visual impact of large vertical diffusors.
Follow Ups:
Who makes transparent diffusers?
I need one to go over my window -- don't want to lose the light. I could in theory make a polycylindrical diffuser out of plexiglass but bending large sheets of that is a pain.
I've got about 30 of these gizmos which I'll try. They look pretty cool and are made of paper. No affiliation.
Edits: 06/06/17
test data on the MIO paper product
That looks like rather efficient midrange frequency absorbers. They can be used for the front wall reflections with relatively narrow (~2ft) pair of vertical boards covered in the absorbers (probably want 3-4 ft vertical coverage, more would be only marginally better) which you can lean against the wall/window to find the best locations. If you would rather use the fake ficus as the front wall solution then these could be used as first reflection controls on the side walls.
I just put the paper tiles up and moved the tube traps to the pictured location. This resulted in a noticeable improvement in coherence and sound stage. I've got more of the paper tiles and will continue to experiment with placement in other parts of the room. One very cool phenomenon, is that far-field listening, seated in the living room, sounds quite nice. Near-field listening has also improved noticeably. Learning how to do room measurements is on my agenda. That's a photo of John Coltrane on the right wall, one that appeared on an early Blue Note Album Cover. He approves of the changes I'm making.
Edits: 06/10/17 06/10/17
Are the tube traps ASC's, and the two shorter ones 2' tall? Never seen that size before---all mine are 3'.
Yes, all ASC. I wish I had more. :) . But that's what DIY is all about. Coming soon.....
I would suggest a couple of things to do so that you get more from the MMG.
Get a box or use concrete blocks to raise the center of the MMG to ear level, and wedge up the back of the legs to bring the speakers to the vertical position. That removes allot of time smear from the speakers and should bring clarity and more defined imaging. The effect should be stronger than that of the absorbers.
Satie,
The speakers pictured are .7s. I do have risers for them but have not used them yet. I am experimenting with two pairs of Herbie's gliders under the factory stands to reduce the rearward rake and make the speakers more "upright." I like the results. I've also added a few of the MIO tiles to wall/ceiling intersection which I also like.Thanks for your response.
Edits: 06/10/17 06/10/17 06/10/17
Never had an encounter with a ,7 so didn't recognize it. But the same should hold for it too. Practically all planars do best with the shorter speaker centered vertically at the listening height and dead vertical. Tall planars that near a floor to ceiling coverage don't need to be centered at listening height.
I will try the metal risers which will raise the speakers about 5" and orient them "straight up." Now, it's bedtime after a long day of happy listening.
Thanks again.
Edits: 06/10/17 06/11/17
And if you do raise the back of the legs to make the speakers more vertical, put something heavy (bricks?) on top of the legs, so the speakers don't fall forward onto the floor!
Thank you, Sir. I'll assemble a pair of panels this weekend and experiment with placement. I also now better understand the specs on the MIO tiles thanks to Mr. dumpinground. I'm quite encouraged and am learning.
If I understand the data correctly, the MIO tiles won't diffuse but offer some degree of absorption at higher frequencies. Yes?
Thanks again.
Thanks so much for your research. Can you kindly evaluate/interpret the data in real world terms for someone like myself who in not technically-oriented?
Thanks again-
Paul
That look different. Any idea how well the disperse/absorb? They don't look like they were designed with acoustic properties in mind.
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