PAD speaker cable differences

RSF, I've been using the Canorus now for about 2 months and initially didn't find it to my liking BUT after over 600 hrs of break-in on a cable cooker I find it amazing! It's quick, transparent, has incredible control and deadly silent. Have never heard the Proteus myself so no comment.

Can somebody describe the differences between the two cables - or even more generally - 3 metal stranded vs solid crystal copper?

I have both Proteus Provectus (speaker cable & ICs between source and preamp) and Canorus (preamp->amp) and didn't know there was a substantial difference in sonics between them.

And since there are aspects of my system sound I would like to tune, I'd probably benefit from understanding the differences, so I'd appreciate any insight.

I have had once a pair of PAD speaker cables (don't remenber which one)
When I replaced it by a pair of JPS Labs Superconductor 3, I had the feeling that a cork had been removed from my ears !...