Cable Direction

If your cables have arrows then you should always have them "pointed" in the direction the audio signal is travelling. Source >>> Preamp >>> Amp >>> Speakers

Whether or not it makes a difference is another can of worms...

Are they Nordost cables? Nordost arrows should point at the source of the signal, not the destination.

Just to clarify, the current is AC, or Alternating Current, so it goes both ways. Therefore it is better to think of the directionality in terms of a "source" and a "load". In a metrology (calibration) lab, the shield of a cable is usually only connected at the source end in order to prevent ground loops (I'm simplifying this a little). The arrows on the cable should be pointing toward the load, which in the case of a pre-amp to power-amp connection would be the power-amp.

My understaning is that unless there is some shielding on one end only it does not make any difference as long as you are consistent. There is some difference of opinion as to whether this makes any difference. The theory is that at the molecular level current creates some one way path (which is hard to understand given we are dealing with current that changes direction each 1/2 cycle)or allows gas to escape or something.....

www.soundstage.com/yfiles/yfiles200005.htm presents some of the views of those who are suppose to know such things.

Sincerely, I remain(even more than usual)

Mr Strassner, the cable genius behind HMS cables says that it does make a whole lot of a difference.
This guy is developing the measuremant banks and instruments in super conductor tests,(special super cooled conductors, who loose their electric resistance at one point and science hopes to eventually help solving mankind's energy problems with super conductors) besides his audiophile line of HMS cables.
He is one of the world-wide authorities to ask about cables and currents. And yes, his cables come with arrows. As a stout scientist, he does not believe in some sort of Voodoo and if he thinks that at least in his cables it does make a difference, than we laypeople can trust his superior knowledge of currents and conductors.
Since you only have two choices to connect your cables anyway, why not follow your cable manufacturer's recommendation and hook them up accordingly?
I assume that even if you do not gain anything, you can at least have some rest in mind that you followed your manufacturers guidelines. So what do you loose by follwing these outlines?....Right, you can only gain.