Do equipment stands have an impact on electronics?

That's great feedback Ralph and describes precisely what I have experienced.  Since you are an engineer and manufacturer like Geoff, any thoughts on why SS devices would be vulnerable?

The semiconductors themselves are microphonic. I've seen some (in need of replacement obviously) that rang like a bell when you ticked them with a small screwdriver, just like a tube.

I've also seen cables and capacitors be microphonic. One time a highly respected high end cable manufacturer made a set of cables for our Neumann U67 microphones, which I was eager to use, but regrettably the cables were so microphonic (tapping on them was easily heard at the mixboard) that they could not be used at all! The stock Neumann cables made much less noise.

The word "microphonic" itself is a little ambiguous as even tubes that are referred to or marketed as non-microphonic are in fact slightly microphonic, which can be easily demonstrated by using some effective tube dampers. Furthermore even things like circuit boards or cables or solid aluminum chassis that are not "microphonic" or considered to be "microphonic" are susceptible to vibration when excited by their resonant frequencies. That’s the case whether the component is tube or solid state. Funny story. A friend of mine said watch this. He was sitting in a chair on the other side of the room from his stand with a CD player on the top. Next to the CD player was a glass of water. Next, he began tapping his knee with his finger very softly. Immediately ripples appeared on the surface of the water in the glass, synchronized with the tapping.

Here is a peak at 21st century equipment isolation:  http://https//www.kickstarter.com/projects/245727224/mag-lev-audio-the-first-levitating-turntable

Bad link to 21st century isolation. :-(

https://www.kickstarter.com/projects/245727224/mag-lev-audio-the-first-levitating-turntable


Audiogon needs to work on there hyperlink code.  It fails repeatedly.