Yeah, in what way do you find cables change sound? Do the numbers of cores matter? The braid? Is copper brighter than copper plated silver or is it the other way round? Do gold plated jacks sound more detailed? Can you tell me? I really want to know because I haven't heard any difference
All-Silver Cables are the best: highest conductivity of Silver means minimum signal loss due to resistance. Silver shows all there is: best bass, mids and highs.
All-Copper Cables are good for bass, mids but there is loss in details in high frequencies. Copper Cable can tame bright IEMs.
Intersting fact: signal travels on the surface of a cunductor.
"When a signal travels through a conductor, it primarily travels on the surface of the conductor, especially at high frequencies, due to a phenomenon called the "skin effect," where the electromagnetic field generated by the signal concentrates near the conductor's outer layer, causing most of the current to flow on the surface".
By plating Copper Cable with Silver you get the benefits of Silver Cables (more details) at fraction of the cost.
Gold is not very good conductor, not as good as Copper or Silver, but it is used to plate Plugs and Connectors Pins because it is more durable than Silver and does not oxidize or tarnish.
Best material for Plugs is OFC. Second best TeCu. Third is Brass. I would argue that best Plugs are Silver-Plated OFC.
There are no OFC Connector Pins (0.78mm) because it is about 10-13% softer than TeCu or even Brass.
Twisting Hot and Cold wires results in magnetic fields induced with signal travelling through them to be cancelled out. Less signal loss. Essentially a form of shielding.
Braiding is sophisticated version of that, just with more conductors - to cancel out EMI caused by signal going through them. Twisted / Braided Cables sound "cleaner" because less signal is lost.
Real Shielding is done by putting Braided Copper tubing over conductors (96% of external EMI shielded) or covering conductor with Aluminum Tape (100% shielding). This is tricky, because it requires proper grounding - otherwise you just adding an EMI antenna.
Cryogenic Treatment changes molecular structure of the metal, minimizes number of boundaries between molecules which makes signal path smoother, with less resistance. It is also done to remove any residual sterss in metal. Sound usually is "smoother" or more "polished".
Look up:
OCC Copper
Cryogenic Treatment of Audio Cables