Directional interconnect cables

This is really like a bar discussion. Everyone a quasi expert. No one truly
knowing the answer, or sufficiently explaining their theory with solid
evidence.

Might as well be a discussion about sports, or politics, or cars.

Around and around it goes.

Buy favorite cable, install per manufacturer, sit back and enjoy..unless your an obsessive psychopath:)

Well, I'm convinced now.... I'm going to turn my throttle CABLES around. My HOG should run alot better......

LOL......

Showing my ignorance here, but if analog audio signals are AC, how is there any directionality at all apart from shielding ground?

To try to get back to the OP's original question. It's not that the wire itself is directional. It's the assembly of the cable as a whole. Some cables have the shield terminated at both ends. Non-directional IMO. Others, have the shield terminated only at one end. In this case, again IMO, the end(s) with the shield termintated should connect to the pre-amp. This will create a single point grounding scheme.

Of course, as some others have said, connect the cables per the manufacturer’s recommendations, and enjoy the music.