Speaker cable arrows???

The difference of "directionality" may be subtle, so you may need some pretty high end system to tell the difference.  

For most systems, however, the difference may be too small to be audible.

If anything, the arrows serve to let you know the cables are hooked up consistently either at the amp or speaker ends.    

To make things a bit more complicated, a speaker cable exists in a three dimensional space, therefore the electro-magnetic energy not necessarily confined as in a 2 dimensional circuit diagram for example. 

And to make things even more complicated, an AC current is not AC that is it is not symmetric.  Some of its aspect is sort of like a DC current.  

Answer this question. If I have 7 inductors that are L7>L6>L5>L4>L3>L2>L1 that is L7 is greatest and L1 is smallest in that order.

Let’s say I put them all in series, starting with L7 and ending with L1 in that order. And run an AC current through them. Measure the output. That is if you input at L7 then the output would be L1, and vice versa

Now does it make any difference if the input is L7 or L1?

My guess is the objectivists would say no difference since all the L’s are in series so it does not matter if you input the signal at L1 or at L7.

I think I managed to come up with a question that can't simply be looked up on the wikipages :-)  I suspect a few posters here use that to appear smarter :-)

 you sick little monkey?

That's the name of a little movie I saw last night :-)