Have we posted on the possible use of lead sheets, say 1 or 2mm, for electromagnetic (RFI) isolation/shield as well as mechanical absorbtion under pre and sources and/or on top of PSUs? Has anybody tried this with positive results? I could not find anything with the Advance Search. 
Chag -
Posted on: 22 February 2017 by Simon-in-Suffolk
Chat, let us know, you will need to probably ground the lead sheets so they don't act as passive radiators.. however the conductivity of lead is relatively low. You probably need to pay more attention between connecting cables hanging out the back of the units