I've tried similar, great around transformers. But like I said, try a full sheet just laying on top. Then try laying inside. No need to cut anything, and impossible to short being as the backing is non-conductive.
Where to use 3M Adhesive Back EMI Absorber AB5100S?
So, I bought a couple of 8 x 10 sheets of this and am sort of intimidated where I can safely and effectively apply them.
My system goes like this: Equi=Core 1800 Power Conditioner > AudioLab 6000 CD Transport/Mofi Utradeck > PS Audio Stellar Phono Preamp > PS Audio Stellar Gain Cell
Seems like transformers and cabinet linings is where most people apply these.
Knowledgeable recommendations appreciated.