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.