The biggest secret has been revealed?!

S

Spock

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The biggest secret has been revealed!

https://www.monoandstereo.com/2021/02/vibration-origins-effects-solutions.html#more

For those who want to believe!:signhere:

Whoever takes a walk on my topic understands how this is a permanent concern.

https://www.audioshark.org/audiosha...pock-system-importance-fine-tuning-13363.html

I would like to point out the special concern of the author with the decoupling of the speakers from the floor (in my opinion the most critical point of an audio system - more important than the placement in the room – yeah, i stand alone in this opinion), and the care to be taken with the vibration of the transformers themselves.

From the text:

Not enough has been written concerning the effects of vibration on high-end audio components. I am surprised. Unwanted vibrations have a serious, adverse impact on the performance of most, if not all, modern audio and video equipment. The reduction or removal of these vibrations can significantly improve the resolution of every system.

…vibrations that can travel through the structure, potentially affecting sensitive board-level circuit components. Less obvious, but in some ways more problematic, are transformers.

Speakers, the component responsible for producing the vibrations we seek to quell, require careful placement techniques to ensure the best performance and least interference.

Manufacturers are just beginning to scratch the surface of this very important aspect of equipment design/construction.

Designers and Engineers are advancing the art of controlling vibrational energy at the component level, but still more needs to be done.

 
Spock said:
The biggest secret has been revealed!

https://www.monoandstereo.com/2021/02/vibration-origins-effects-solutions.html#more

For those who want to believe!:signhere:

Whoever takes a walk on my topic understands how this is a permanent concern.

Spock system (the importance of fine tuning)

I would like to point out the special concern of the author with the decoupling of the speakers from the floor (in my opinion the most critical point of an audio system - more important than the placement in the room – yeah, i stand alone in this opinion), and the care to be taken with the vibration of the transformers themselves.

From the text:

Not enough has been written concerning the effects of vibration on high-end audio components. I am surprised. Unwanted vibrations have a serious, adverse impact on the performance of most, if not all, modern audio and video equipment. The reduction or removal of these vibrations can significantly improve the resolution of every system.

…vibrations that can travel through the structure, potentially affecting sensitive board-level circuit components. Less obvious, but in some ways more problematic, are transformers.

Speakers, the component responsible for producing the vibrations we seek to quell, require careful placement techniques to ensure the best performance and least interference.

Manufacturers are just beginning to scratch the surface of this very important aspect of equipment design/construction.

Designers and Engineers are advancing the art of controlling vibrational energy at the component level, but still more needs to be done.
Click to expand...


Thanks for sharing.

We have many even in 2021 that still believe cables don't matter.

So, Vibration control is a tough sell to some.

Maybe scoff at the prices or don't believe it makes a difference, same thing with cables and or any "Tweak"

However, I think we are seeing more education regarding this topic than we were years ago.

More designers are offering more accessible vibration control products than ever before.

I plan on getting a pair of GAIA (Iso Acoustics) de-coupling footers for my speakers ASAP.

I'm sold on the positive impacts of vibration control.
 
i am a believer ...huge SQ impact when i added the core audio rack.

obvious example: vacuum tubes -- there is simply no way that vibrations don't affect them. if you are skeptical, just shake a lamp with a filament bulb and watch the light flicker.
 
aKnyght said:
i am a believer ...huge SQ impact when i added the core audio rack.

obvious example: vacuum tubes -- there is simply no way that vibrations don't affect them. if you are skeptical, just shake a lamp with a filament bulb and watch the light flicker.
Click to expand...

Yep, that's why there are no vacuum tube audio products on the market because no one knows how to make them work. The manufacturers can't get people to stop shaking their vacuum tubes and they are tired of being sued over burns to people's fingers and hands.
 
RDSChicago said:
I think he was making a joke that one wouldn’t shake a hot vacuum tube or light bulb for fear of burning one’s fingers. If my assumption is incorrect then I like you don’t get what he is saying either.
Click to expand...

You nailed it.
 
I have used different kinds of wood and cables to change the sound of my system for 20 years. There is no doubt that changing and controlling vibration changes the sound. Shunyata uses damping on the covers of the Denali to change the sound, if it didn't work they wouldn't bother. In my opinion the master at vibration and tuning is this guy, look it up......Vansevers, The Art and Science of System Tuning.
 
mep said:
You nailed it.
Click to expand...

aight, i'll go with that
:)
___________________

note: for anyone attempting this experiment at home, important safety reminder: the recommended test is to "shake a lamp with a filament bulb and watch the light flicker" ...please, do not shake the bulb directly.
;)
 
Can we take this seriously? The first like of the quote reads "Not enough has been written concerning the effects of vibration on high-end audio components."

With respect, what nonsense. With the exception of cables, this subject is just about the most talked about in hi-fi. And everyone has their own opinions that differ hugely and there's no right answer. There's so much snake oil around the subject too as the wool can so easily be pulled over users' eyes. So much will depend on circumstances, particularly the floor that speakers stand on, that there's little point in considering this particular vague discussion.
 
For the first time, I am getting more serious about this topic, and I am really looking forward to the changes it may bring.

I've built a very fine system consisting of Wilson Alexia one's, Audio Research Ref6SE/Ref160 monos, Esoteric N-01XD and G-02X clock, Clearaudio Ovation TT with universal arm and Lyra Kleos, and the Esoteric E-03 phono pre. It's all tied together with Shunyata power and Transparent Reference G5 signal cables.

Sounds fantastic, but up to now I've only had a basic salamander rack. Particle board! I did buy 3 HRS S3 isolation bases to put across the top of it, and my DAC, Preamp, and TT are sitting on them. Everything else? Zero vibration control.

I just ordered an Adona rack and amp stands, and another HRS S3 base. I will use the HRS isolation bases for the preamp, power amps, and the TT. Then I bought IsoAcoustics Orea feet for everything else.

Yes, you read that right, I am putting HRS bases on top of Adona bases for several components. I might regret the looks, I am not sure yet. We'll see. I like the look of Adona, but I like the additional performance of the HRS. The Orea seem very well made for smaller components.

When I get it all together in a few weeks, I'll post some pics. I expect that going from zero vibration control on several components (including my tube monos) to having 2 levels of it, will be a bump in SQ. Even if not, it sure will look better!
 
That's a very nice system. You will really like that Adona rack, it made an obvious improvement in my system. What sold me on Adona was the multi layered shelves and the threaded feet under the shelves. Do yourself a favor and use a screwdriver style allen key when you assemble, makes it a bunch easier. I chased some upper midrange glare for a bit when I first moved my system upstairs. I thought it was the room. After hanging a bunch of blankets on the walls I realized it was something else. Adona for the win!
 
Its not like this isn't well known in audio. My Scully lathe sits on a table made for it- which has adjustable spikes for the floor and an anti-vibration platform. It was made about 1949 (the lathe later being set up for stereo).

So points under audio equipment goes back that far anyway- 70 years- that's a pretty good run.

Ampex had isomeric decoupling in their tape electronics. I don't think they had any doubts about the audibility or measurability of that.
 
atmasphere said:
Its not like this isn't well known in audio. My Scully lathe sits on a table made for it- which has adjustable spikes for the floor and an anti-vibration platform. It was made about 1949 (the lathe later being set up for stereo).

So points under audio equipment goes back that far anyway- 70 years- that's a pretty good run.

Ampex had isomeric decoupling in their tape electronics. I don't think they had any doubts about the audibility or measurability of that.
Click to expand...
Good points! Shunyata uses vibration damping on the covers of the Denali. My experience with adding damping on equipment covers results in sweeter highs and an overall sense of smoothness to the sound. The reviews of the Denali reference these traits, imagine that.
 
Not sure if this is the right spot, but is there a good iPhone ap for measuring room acoustics?
Don't want to spend a lot, but would help fine tuning my room.
Thanks!
 
FRO said:
Not sure if this is the right spot, but is there a good iPhone ap for measuring room acoustics?
Don't want to spend a lot, but would help fine tuning my room.
Thanks!
Click to expand...

The biggest problem most people run into with room acoustics is getting the bass right. The usual problem is standing waves in the room, which might allow bass to be almost everywhere except the listening chair. This is a very common problem!

Its usually something that happens below 80Hz so there is an elegant solution, which is to use something called a Distributed Bass Array. Because your ears cannot acknowledge a sound until the entire waveform has passed by your ear, and because at 80Hz the waveform is 14 feet long, in most rooms this means the bass fundamentals are omnidirectional. Because of this, you can asymmetrically place subwoofers about the room, none of them operating above 80Hz, and thus break up the standing waves, resulting in evenly distributed bass throughout the room. As long as the subs do not have any output above 80Hz they will not attract attention to themselves so your main speakers will be convincing you of where the bass is coming from.

There are three approaches to dealing with bass problems in a room; the other two are DSP room correction and bass traps. Compared to a DBA, these latter two solutions are about 5% effective. They can fix a peak, but not a null due to cancellation, as a null will need the bass to be boosted. Since cancellation is going on, you can put thousands of watts into that cancellation and not get much in the way of results!

If your room seems bright, its best to make sure the bass is right first, since if the bass is shy, your ears will tend to tell you things are tilted to the highs which of course they are. Get the bass right and the room might not seem so bright.
 
atmasphere said:
The biggest problem most people run into with room acoustics is getting the bass right. The usual problem is standing waves in the room, which might allow bass to be almost everywhere except the listening chair. This is a very common problem!

Its usually something that happens below 80Hz so there is an elegant solution, which is to use something called a Distributed Bass Array. Because your ears cannot acknowledge a sound until the entire waveform has passed by your ear, and because at 80Hz the waveform is 14 feet long, in most rooms this means the bass fundamentals are omnidirectional. Because of this, you can asymmetrically place subwoofers about the room, none of them operating above 80Hz, and thus break up the standing waves, resulting in evenly distributed bass throughout the room. As long as the subs do not have any output above 80Hz they will not attract attention to themselves so your main speakers will be convincing you of where the bass is coming from.

There are three approaches to dealing with bass problems in a room; the other two are DSP room correction and bass traps. Compared to a DBA, these latter two solutions are about 5% effective. They can fix a peak, but not a null due to cancellation, as a null will need the bass to be boosted. Since cancellation is going on, you can put thousands of watts into that cancellation and not get much in the way of results!

If your room seems bright, its best to make sure the bass is right first, since if the bass is shy, your ears will tend to tell you things are tilted to the highs which of course they are. Get the bass right and the room might not seem so bright.
Click to expand...

Completely agree with this. I use a distributed bass array/swarm configuration in my room to great affect. My bass is +/- 3db at 1/24 octave smoothing from 100Hz to 20Hz without DSP. Incredible what this does to set the foundation for the music. All frequencies improve. The sense of space is remarkable. This is the third room where I have used some variation of this concept and the result is always the same.
 
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