power cord directionality

uhhh...  duh end wif duh prongs on it gits plugt innuh wol.  duh uther end innuh yer lektronix.  

how yu gonna ree vurs it?

uh scary bpoletti I clearly understand everything you said. LOL.  

Sorry gentlemen, but if I was interested in comedy I would go elsewhere

I wonder if all the wiring installed in your house by the building electrician has been installed directionally correct? 😷🇦🇺

Is the preamp working properly? Does it sound fine? If so, don't worry about it. The wire doesn't care. Most commentators didn't know it was a wire between an outboard power supply and the preamp. So it IS supplying DC. All power cords going into the wall sockets, all interconnects and speaker wires are carrying AC and the current is reversing at many frequencies all the time. Unless someone is playing tricks with sheilding (some only ground one end in special situations) the directionality of wire is a myth.