Which end is which?

The red end wih an arrow indicates that it's a gozinta. As in it gozinta the downstream equipment. The other end is the gozouta, where the volts gozouta the upstream device.

Whether it matters or not is subject of hot debate between the earnestly misguided and the quacking hucksters on one side, and the physical realists on the other. Cables can matter, just usually not for the reasons and quasi-theories promulgated, and not as much as claimed. 

See also Placebo Effect and Confirmation Bias. 

...if a cable was directional, I'd rate it next to a subtle form of eq....
Then I'd wonder why someone would want that....

Anyway, far out and not long ago in sidereal time, there were those that claimed God spoke to them through their speakers.

I've always defaulted to giving another 'space', when it comes to belief....

...unless, I'm pissed....

...and also, when 'quantum flow in cables' becomes the Next Trivial Obscure to pursue.....with the corresponding price applied....

"....they're due any minute, now....."

The drumming of the lemmings' feet began to softly fill, then expand into a stampede....

Did we not go over this whole cable directionality thing ad nauseam in another recent thread?

I bought a used set of transparent cabels with the big magic box.one explanation i got was you can use different lengths  do to the magic box.onother blog stated the took the magic box apart to find out what was in it. Then I got a set of biwire that had the single end  on one end and the bidirectional on the other with the big black magic box closer to it .so by deduction I figure the black box goes closer to the speaker end. I keep hoping a genie pops out of it and grants me my powerball wish so I can buy more audio equipment and pay more taxes. Enjoy the music and the search. I was raised by a nuclear physicists who was 2nd gen Einstein trained.what a ride.