Take some teflon insulation tape and put it over the IEC plug.A couple of rounds over the plug(the part that goes into the IEC female socket).Insert the plug back into the socket.
There is a noticable cleaning up of the sound. The only reason I can think of is that the plug now sits more firmly in the socket and the contact is tighter.
Interesting tweak. I shall also try this.
Another suggestion Prem made was to use the insulation tape on the metal prongs of the mains plugs.
Will the teflon sheet not act as an insulation? How many layers did you use?
I think both may have something to do with preventing micro vibrations.
The second tweak is so counter-intuitive. Whoever discovered it must be a real tweak freak
