Sound Difference W-Lan,Powerline,Patch-Cabel

No.

My thoughts, but i would like to hear it from another person as me, that there would be no difference in sound between the 3 solutions.
Because a friend of me says, that there would be a sound difference exsp. w-lan and powerline because there could be electric interferences, which could degrade the sound .

I use a Slim Devices Transporter through wifi and think it sounds great, although some people argue that an ethernet patch cable would sound better. I have gone to great lengths to keep my mains power as clean as possible so don't like the idea of using it to carry a network signal. I would therefore avoid the D-Link Powerline, the Naim Powerline is a different matter

I tend to prefer a cable connection. The protocals are different. Bits are the same.

I use a Devolo home plug system through my mains wiring and I find it is very good indeed , no interference at all . I could not get a reliable wireless signal due to distance and thick walls.