How does power cord affect a digital frontend?

The greatest improvement with digital gear (Sony SCD 777 ES and Esoteric DV-50) has been with the JPS labs Digital AC. (See Art Dudley's article in the April "Stereophile".) It really works. It takes about a week of continuous use to
"break-in", but the improvement is not subtle.

Dmitrydr, I now better understand what you are asking. I suspect that as with all conversions to dc, there are better and worse and that that cords and filters make the conversion easier.

All I can say is that on my Lindemann with a digital as well as analog ac cord, I can hear substantial difference among the cords I use on the digital as well as analog as well as an enormous improvement using the Loricraft balanced power supply.

More opinions?

I agree with SeanandTaylor that the laser mechanism in the CDP is a culprit in interferring with the power that feeds into the rest of the system. That is why it's best to isolate the transport from the rest of the system, and a good PC can help do this.

I am guessing, but I think the material that CDs are made with (the shiny stuff) can attract airborne RFI/EMI which can be transferred to the rest of the system as well either through the power or signal lines. I use a sheet of ERS cut into the shape of a CD to use as a CD mat and works pretty well.