Absorption of digital hash

Berkeley uses material to absorb stray digital noise. Anyone know what they use?

ptss02-19-2024 3:37pm

audio_is_subjective Details Discussions Posts This discussion Message User 52 posts 02-19-2024 at 10:03pm Copy Comment URL Report Comment Edit Delete What is stray digital noise??
erik_squires Details Discussions Posts This discussion Message User 16,004 posts 02-20-2024 at 02:50pm Copy Comment URL Report Comment Edit Delete @audio_is_subjective Any digital noise without an owner. 🤣 I'm pretty sure they mean radiated RFI.
ptss OP Details Discussions Posts This discussion Message User 1,964 posts 02-21-2024 at 08:26pm Copy Comment URL Report Comment Edit Delete Yes. Radiated. Berkeley owners must know...
Post removed Feb 21, 2024
mapman Details Discussions Posts This discussion Message User 22,069 posts 02-21-2024 at 10:59pm Copy Comment URL Report Comment Edit Delete I use Mu Metal foil to shield my step up transformer from external EM fields and resulting noise. Works great. The difference in noise levels is clearly audible.