Damping to exitation of parasitic modes of


What is the best material to use as a substrate for making Isolation plinths/platforms, for damping the excitation of parasitic modes of vibration as well as HF resonance? That looks cosmetically appealing as well?
128x128jollygreenaudiophile2
For micro vibrations best to use constrained layer damping as well as very hard cones that will allow such unpleasantries to escape the system. I also am a fan of natural cork for damping and isolating printed circuit boards, capacitors, those pesky large transformers and gulp, fuses/fuse holders. Sorbothane not so much. I've had trouble with the sound degrading. 😛

So Jeff, your saying you believe in "Sympathetic Vibration" and "Compassionate Resonance"? I'm unsure about the resonance and have found no way as of yet to prove anything positive about those vibrations.
   Clue me in.
    As far as the Sorbothane goes you may have used too much in mass of the wrong durometer. I've also had problems with it not loading to spec. Besides that, It smells funny.
And yeah I've been experimenting with the constrained layer damping since before it was given that monicker I believe. It's one piece of the puzzle. No more, No less.
    I quit solving for "X" as an absolute a long time ago. Everything has it's place up to a point.