Do equipment stands have an impact on electronics?

Agear wrote,

"How was the laser "noise"measured? Again, it tells you little about output variables pertaining to speaker performance and/or electronics as Geoff intonated

Tom used the word refracted when I’m reasonably sure he meant reflected. You can see how much or how little the reflection of the laser beam jumps around on one of the walls. This laser reflection method is actually not far removed at all from how LIGO works, inasmuch as in LIGO a laser beam travels down a very long tunnel kilometers in length and is reflected back precisely from a mirror at the far end of the tunnel. Then the laser beam travels back to the original end of the tunnel and the influence of any gravity waves can be seen on an optical screen. Unlike LIGO, however, using lasers on speakers to measure their motion doesn’t necessarily indicate the speaker stands’ isolation effectiveness. The stand could be simply transferring energy to the floor more effectively than nothing at. AND in doing so actually making the sound worse!

I’m quite sure you didn’t mean to use the word, intonated.

Thanks for pointing me to this thread. Yeah, "revisionist" is the right word. :->)

Here’s the thing: When someone makes a claim, the burden of proof is on them. It’s not up to me to prove that a 2 volt drop doesn’t have an audible effect. It’s up to the claimant to prove that it does. This is Logic 101. More important, trying to assess the affect of a power wire by measuring the AC power voltage is beside the point. The *only* thing that matters is what happens at the output of the connected equipment. Competent audio gear is immune to small changes in voltage, and routinely filters out the typically small amount of noise riding on top of the power voltage.

As always, I’m glad to be proven wrong, and I promise I’ll change my opinion immediately. But in all the years I’ve been at this, nobody has ever provided such proof. Which makes sense given that electricity at audio and power line frequencies is fully understood (by electrical engineers).

I just realized the topic of this thread is vibration isolation. I love this topic! Why? Because it's so easy to prove or disprove by measuring. But who has ever done that? Well, I did not long ago. Enjoy:

http://ethanwiner.com/speaker_isolation.htm

From Ethan winer's article on vibration isolation:

"One fact that isolation proponents miss is sound transmits mostly through the air. Another fact is competent loudspeakers have sufficiently rigid cabinets that don't shake and vibrate very much."

Houston, we have a problem. Everyone, quick, fasten your seat belts!

I used the word refraction as I intended. Tom