Copper ring as a shield of the main power cables???

[zoranaudio]

Hi All!
I Have watched this video and it's quite interesting!
YouTube - Marantz Reference Legendary system

YouTube - Marantz Reference Legendary system

My question is: Can this be useful If I put copper rings to power chord of the standard audio devices in my system, because none of them are shielded?
Is the copper better than a Ferrite ring ?
Thanks in advance !

[cbdb]

All hes doing is shielding 60hz emi escaping from the power cord, how is this going to help the sound?

And starting the CD twice makes it sound better? Audiophool!

[zoranaudio]

Originally Posted by cbdb

All hes doing is shielding 60hz emi escaping from the power cord, how is this going to help the sound?

And starting the CD twice makes it sound better? Audiophool!

I wondered about shielding, and the tool you see , it's a Philips brand, so might be useful for measuring of el. magnetic splatters, i wonder why just at the end of a power cord, and i would try that but i need that measure tool, smells like this have a sense to improve sound quality.What I tried shortly, is closing RCA audio signal cables to the power chord of the pre amp and i noticed like loosing the high frequencies, all this is home made, and power chord is simply not shielded.
About playing CD 2 times ..., and after i get the better sound,I don't want to comment, cos im listening non - stop not just once.
Any more description about this???