Cabinet

 
mb1audio02

meerzistar: it insulates current, not vibration. Thats pretty clear cut. 

So was the OP's question.

" Not worried about the vibration,I can work that out. I’m concerned if there would be any unwanted frequencies from the porcelain? I also have the ventilation covered."

He says he's "not worried about the vibration" but is "concerned if there would be any unwanted frequencies from the porcelain." What's the difference?

Porcelain is the poor man’s ceramics, which is an excellent vibration damper, I.e., resonator. And I’m not hot doggin ya.