Do equipment stands have an impact on electronics?


Mechanical grounding or isolation from vibration has been a hot topic as of late.  Many know from experience that footers, stands and other vibration technologies impact things that vibrate a lot like speakers, subs or even listening rooms (my recent experience with an "Energy room").  The question is does it have merit when it comes to electronics and if so why?  Are there plausible explanations for their effect on electronics or suggested measurement paradigms to document such an effect?
agear
theaudiotweak
1,427 posts
11-15-2016 3:58pm
Isolate your musical instrument in Carnegie Hall and hope to hear whats removed.. No ripples in our You Tube video in a night club in the middle of New York City and all of its non interference at least when using our non isolating designs. Tom

Give me me a couple days to figure out what the heck you’re even talking about and I’ll get back to you. My fear is that like Michael Green, you guys are laboring under the false assumption that audio systems are completely analogous to musical instruments. That straw man argument has gotten you into deep Kim chi. I’ve always said that one must not only isolate the component but also evacuate any residual vibration. 

The only good vibration is a dead vibration. - Shannon Dickson.



Analogous  how?  Like to microscopes and LIGO and Earth and city noise are to your stuff when used in a live music venue or with real instruments that vibrate as a function of how they operate and we perceive them. That would sound like a pile of mud with your stuff....

We test our design concepts with real live instruments and musicians. Have you ever even thought of such a concept and how your designs will crush dynamics of real instruments?

My designs are used in Carnegie Hall and in the  Gewandhausorchestra, Leipzig, Germany (founded in 1743, named in 1781 for its first home – Gewandhaus)

Some players have removed the decoupling carbon fiber endpins from their instruments and replaced them with endpins that extract the most energy from their cello and bass via the concept of direct mechanical coupling. That is only one of our test methods..how it really sounds.. What a concept.

PS what about the spring bandpass filter question I asked earlier?

Tom 


theaudiotweak
1,428 posts
11-16-2016 9:41am
"Analogous how? Like to microscopes and LIGO and Earth and city noise are to your stuff when used in a live music venue or with real instruments that vibrate as a function of how they operate and we perceive them. That would sound like a pile of mud with your stuff...."

Uh, microscopes and Ligo are examples of why isolation is important. Otherwise you couldn’t see the slide under the microscope clearly or detect gravity waves. I never said it proves anything about audio. But it IS evidence. None so blind that will not see.

Whoa! Let’s not get carried away. I’m sure you have never tried to isolate anything in your life and that you are just grasping at straws. You ignore isolation. Remember? Isolation improves dynamics. But how would you know? You ignore it. Remember? 

then Theaudiotweak wrote,

"We test our design concepts with real live instruments and musicians. Have you ever even thought of such a concept and how your designs will crush dynamics of real instruments?

My designs improve dynamics. Quite dramatically actually. Thanks for asking.

then Theaudiotweak wrote,

"My designs are used in Carnegie Hall and in the Gewandhausorchestra, Leipzig, Germany (founded in 1743, named in 1781 for its first home – Gewandhaus)

Did someone sneeze?

Then theaudiotweak wrote,

"Some players have removed the decoupling carbon fiber endpins from their instruments and replaced them with endpins that extract the most energy from their cello and bass via the concept of direct mechanical coupling. That is only one of our test methods..how it really sounds.. What a concept."

Good for you! Don’t strain your arm patting yourself on the back. What’s that have to do with audiophiles? 

PS what about the spring bandpass filter question I asked earlier?

You’re kidding, right?


Vibrations affect anything that is microphonic or any surface that can vibrate and create sound (rattle being obvious but it can be moe subtle than that). Examples are a piano or guitar that will vibrate sympathetically and drum sets are very obviously sensitive to vibrations - sympathetic snare buzz being most obvious.

That said, electronics of good quality are designed so that they are not microphonic. This means vibration damping is not needed. Tubes can be microphonic so they should be avoided if accuracy is desired at louder levels. Some capacitors can be microphonic and are usually avoided for that reason. Same goes for a turntable - it is unavoidable that a TT will pick up some vibration due to the very nature of the vibrating source that is amplified enormously.

Speakers do not generally behave microphonically but they sure do excite vibrations in everything else. Proper cabinet damping and use of isolation stands and/or rubber an be essential to reduced unwanted sympathetic vibrations. Same goes for anything in the room - heavy curtains may help with windows a heavy rug may help with a floor - tapestries may help with vibrating detached gyprock and on and on....

Electronics are usually challenged by ground loops, stray EM and power source noise that is not filtered well enough. Most of the noise in electronics comes from stray current through leaky components, heat and in general poor circuit design - so vibration pads or cones are unlikely to have any benefit although vibration damping may ultimately protect the longevity of electronics in extreme environments.