Copper Sleeve over IEC

I suppose I'm the only one using 3M AB5100S.

What do we think is being done with the copper around the IEC? I bought a leakage meter, and found that I had none before and after I installed copper around this connection. I heard nothing either.

TBG,
There is defiantly a difference with using the copper sleeve.
I cant believe you can't detect it with all of your expensive equipment. I would say it is providing a shield around the IEC similar to what Furutech or Oyaide does with there Hi End power/IEC's that utilize aluminum and carbon fiber.
Perhaps with the magnetism from your HI Fidelity cables it is minimizing the effect.

But, I sometimes think with the copper sleeve over the IEC it accents the treble a little too much.

Ozzy, I tried this about four years ago. I gave up but have since used my meter to assess leakage. I have none.

Ozzy,

I'm getting a nice improvement on my DAC and transport.