> I feel bad for the folks who can’t hear a difference between cables
What can I say on that?
I feel bad for the folks who does not realize that there is no such thing as "sound signal".
The fact - it is a plain bold electricity obeying plain bold laws of physics. Once you realize that, you will understand why audio cable (electrical wire) does not affect a sound signal (electric current) the way you see it.
Tear apart you fancy speaker cable - what do you see? Do you see some special circuits tend to improve a sound? Nope. Just plain old copper wires. No shielding, ether, as it is not needed in speaker connections.
By the way. You have a cool expensive wire connecting your amplifier and a tall tower speaker, 3-4 feet in length. Do you realize that another 3-4 feet of wire is connecting components inside of your speaker box? Do you think it is some kind of a special wire? Well, open your speaker box and surprise yourself.
Good luck spending your bucks, if that makes you feel better.

