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
It works great on the 1/2" steel plate platform my TT sits on. It's now the best of both worlds, ridged & dampened. There was less of an improvement (though a good improvement nonetheless) with the electronic chassis's. It's pretty cheap, around $12 a square foot
forget everything except altering the Q - you will first need to determine the freq.s involved (tho any decent car stereo dampening material should be helpful)
I've tryed using sorbothane but have had problems with the substance degrading. It also ruins wood finishes!