Thank you Jerry.
I had bought a Denafrips Ares ll and the Seller included a slightly soft sided solid metal 1/4” 8” square. I think to separate electronic interference possibilities. Also this video was part of his logics are herein contained in this project description:
WILD!
Denafrips Ares II with Stillpoints ERS Paper isolation of power section and tweaks according to https://www.youtube.com/watch?v=EwZiX1mc9Zs. Included: antivibration 3/8" thick aluminum plate,