What is this Wacky-Looking Room Tuning Device?

pjwd

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Jun 22, 2015
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It's pretty poor on the sides but it is excellent in the centre part of the stalls. Also it has steps, so the seats go slightly above level of the stage which I prefer, compared to being below the stage like in the lower section of Birmingham or concertgebouw.

Non box is fine, Sheldonian is the by far the best for acoustics. I haven't been to Berlin or Vienna though I have been to the Unter den Linden opera house in Berlin
I always thought it would be neat to do a theater tour in Europe.. always get to a few when we travel but having that as a focus would be fun .. might be a while though...
Phil
 

Alrainbow

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Dec 11, 2013
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I saw this photo of a Japanese audiophile's system on Mono and Stereo.

Look on the sides at this collection of broomsticks of varying lengths mounted vertically on a wood base.

Does anyone know what this product is? How does it supposedly work?


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Its a diffusor , used to break up reflections and redirect high frequency energy for clearer highs with better details ...

Really good if early reflections are a problem due to seating position ...!
 

pjwd

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Jun 22, 2015
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Its a diffusor , used to break up reflections and redirect high frequency energy for clearer highs with better details ...

Really good if early reflections are a problem due to seating position ...!
It would only deal with high frequency given the small diameter ... a mix of diameters would work better ... I like the varied height .. theoretically it would scatter some reflections upwards and out of the listening plane
Phil
 

marmota

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Feb 3, 2016
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Probably it is from Acoustic Grove System, "AGS"

Those are what @ddk posted, I find the principle very, very interesting. Glad to know from him that it works :)
It certainly makes lots of sense, nothing sounds more natural than being in a forest.
Also, check out the graphs on their website, they also work for the low frequencies.

The question is how many of them do you need to get optimum results, I entertain the idea of having a "zen-like" living room, to integrate some of those products naturally, without the room looking like a torture chamber. A combination of those in the first reflection points + 2x PSI AAVA C20 could be quite something. The idea of achieving a flat bass response without compromising the liveliness of the room is quite attractive IMO.
 

ddk

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May 18, 2013
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Probably it is from Acoustic Grove System, "AGS"

Those are what @ddk posted, I find the principle very, very interesting. Glad to know from him that it works :)
It certainly makes lots of sense, nothing sounds more natural than being in a forest.
Also, check out the graphs on their website, they also work for the low frequencies.

The question is how many of them do you need to get optimum results, I entertain the idea of having a "zen-like" living room, to integrate some of those products naturally, without the room looking like a torture chamber. A combination of those in the first reflection points + 2x PSI AAVA C20 could be quite something. The idea of achieving a flat bass response without compromising the liveliness of the room is quite attractive IMO.
I guess the simple answer to your question is, depends on the room and budget.

As you can see in the pictures the listening room I was in was heavily treated on all surfaces and quite large. What you don’t see are the absorption panels on all surfaces behind the grove. You can’t get away from the torture chamber aesthetic if that’s your goal they’re just as industrial in look and feel as any of their counterparts. Sonically they have a lot of potential but really need them to handle the installation.

david
 
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Kingrex

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Feb 3, 2019
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In Rons picture you can see the sticks are right in line with possible deep bass absorbing panels behind them.

Also, others seem to have touched on this. A xylophone is tuned pieces of wood. Those dowl length could very well correspond to keys. They may boost or draw down certain notes. They may also act more like Synergistic bells and vibrate making a behind you reverb affect.
 

marmota

Well-Known Member
Feb 3, 2016
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I guess the simple answer to your question is, depends on the room and budget.

As you can see in the pictures the listening room I was in was heavily treated on all surfaces and quite large. What you don’t see are the absorption panels on all surfaces behind the grove. You can’t get away from the torture chamber aesthetic if that’s your goal they’re just as industrial in look and feel as any of their counterparts. Sonically they have a lot of potential but really need them to handle the installation.

david

Makes lots of sense. I'm sure that an equilibrium between good sound and cozy living room can be found without going full vietnam jail, of course not as good as the "life sentence treatment" but better than nothing. Certainly this is something that I'll be investigating for my home in the next months, quite interesting stuff.
 

Tuckers

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Nov 18, 2020
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Ah, the Shakti Hallographs. Had some at RMAF shows in our rooms back in the day to help the acoustics. Yes, you could hear them in the room, they changed the presentation depending on where they sat. Was it better? To my ears it was just different. A really nice potted plant does the same thing and is nicer.
 

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