Trying the ZR Acoustics Panels

QuadDiffusor

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Apr 3, 2017
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Cellcbern,
Some physics to digest before biting the bait (video link below).

My front walls, with six P-17 diffusors covering 8.5’H x 9.5’W x 16”D of space, has a horizontal diffusion bandwidth of 242 - 3,385 Hz. The randomized non-correlation of the indirect sound from your speaker’s output is what’s critical in creating the illusion of deliciously precise and well-localized sonic events in a 3D soundstage.

What’s the diffusion bandwidth of the ZR Acoustics panel which you’re using?

 
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Nuprin

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Either Industrial Light and Magic is buying "Snake Oil" according to most of the guys on Gearslutz or it actually works (to a degree).
 

Cellcbern

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Jul 31, 2015
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Either Industrial Light and Magic is buying "Snake Oil" according to most of the guys on Gearslutz or it actually works (to a degree).
The reactions on Gearslutz are just human nature. This is how human beings react to something new and different which cannot be explained using familiar, accepted concepts and terminology. And of course the people who make a living selling conventional room treatments and acoustical services are threatened by what may be a disruptive technology so they denounce it as "snake oil". What I find fascinating and frankly amusing is the extent to which people are comfortable explaining authoritatively why a new technology or product can't work without having any direct experience with it. Again, my direct experience with the ZR Acoustics panels on the wall behind my speakers is that they work as advertised and are superior to all conventional room treatments I've tried.
 
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Cellcbern

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Jul 31, 2015
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Cellcbern,
Some physics to digest before biting the bait (video link below).

My front walls, with six P-17 diffusors covering 8.5’H x 9.5’W x 16”D of space, has a horizontal diffusion bandwidth of 242 - 3,385 Hz. The randomized non-correlation of the indirect sound from your speaker’s output is what’s critical in creating the illusion of deliciously precise and well-localized sonic events in a 3D soundstage.

What’s the diffusion bandwidth of the ZR Acoustics panel which you’re using?

Diffusion bandwidth is not relevant to the ZR Acoustics panels. Panel thickness is not relevant. The ZR panels are neither absorbers nor diffusers in the conventional sense. They perform the same at all frequencies, eliminating room modes (by eliminating reflections). Maybe this explanation is easier for me to accept because I have no background or experience with the math and science of room acoustics. All of the acoustical room treating I've done has been based solely on my educated audiophile ears.

Here is my layman's distillation of the explanations I've seen of how the ZR technology works: A sound wave hits the ZR panel and is obliterated (down to the molecular level the manufacturer says) by the many small, non-parallel surfaces, scattering the air and eliminating the sound wave so no reflection is possible.

My test of the panels in my listening room provided no reason to doubt this explanation. The bass response and overall clarity improved dramatically with just the four panels in the photo, without making the room sound dead in the way that absorbers can. With my speakers right up against the panels/wall the soundstage is wider than with the conventional panels and just as deep as with the speakers a couple of feet away from the wall. Again, it looks to me like DHDI has developed a disruptive technology which is the next step beyond conventional acoustics/room treatment. That's what my ears tell me, and that's what the growing list of film and recording studios, mastering labs, etc. who are implementing the ZR technology suggests - (e.g., https://www.local695.com/magazine/mixing-the-mandalorian-season-one-this-is-the-way/).
 

Nuprin

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@Cellcbern

Did you find out if there's any kind of return policy when you first purchased your panels? Nothing on the FAQ mentions this if someone wasn't satisfied with their products.
 

spiritofmusic

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Jun 13, 2013
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So Cellcbern, we're sticking with this quantum claim literally, as advertised? Ie NOT diffusion, NOT absorption, NOT some combination of the two, but indeed working on a level that's beyond sub-molecular, sub-atomic even?

I have no issue with quantum used purely as an advertising hook...find it tedious, and predictable, but get the reason for the word being used, especially as promotional tool.

But if we're really saying these panels work at the quantum level, it really entrenches what I feel about things. I don't care how good (or indeed, not good) they sound.
 
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Cellcbern

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Jul 31, 2015
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So Cellcbern, we're sticking with this quantum claim literally, as advertised? Ie NOT diffusion, NOT absorption, NOT some combination of the two, but indeed working on a level that's beyond sub-molecular, sub-atomic even?

I have no issue with quantum used purely as an advertising hook...find it tedious, and predictable, but get the reason for the word being used, especially as promotional tool.

But if we're really saying these panels work at the quantum level, it really entrenches what I feel about things. I don't care how good (or indeed, not good) they sound.
I didn't use the word "quantum" in my comments, and frankly I am not any more bothered by ZR Acoustics' use of it than I am by Nordost's use of it. I don't care what lanquage audio manufacturers use in their marketing hype. The reality is that we don't know how the ZR Acoustics panels actually work - we only have the manufacturer's explanation which cannot be verified or refuted with conventional acoustical concepts and methods. Given how trade secrets and patent applications work we may not know for some time. That doesn't bother me. The only thing that matters to me is whether or not they improve the sound in my listening room.
 
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spiritofmusic

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That's absolutely fine, zero criticism of you intended.
 

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