Do speaker cables need a burn in period?

Oh ooh, @azbrd where have you been hiding?
Geoff, I think I need a refresher, skeptic or pseudo skeptic?

To one of your points, I did a very small amount of sleuthing and could not find much reported about a positive effect/correlation between cryogenic treatment of copper and electrical resistivity (of course all audiophiles with worthy systems and good ears can hear the difference). There is quite a bit about the effect on ferrous metals used in the cutting industry, and I did read one source that cited a “reduction in grain size” - maybe I need to look further

@azbrd   Have you ever installed new cables in a system and listened over a few weeks as the sound opens up with more dynamic swing?  Regarding not using any type of contact enhancer, you might reference the Perfect Path Technologies "Total Contact" contact enhancer.  I haven't used it but the vast testimonials of those who have point to its efficacy.

What’s perhaps even more disturbing, to anyone but especially the skeptics is the use of home feeders for treating cables, CDs, LPs, CD players and all manner of audio related things. Obviously -20 degrees F is not nearly as low as cryogenic temperatures -300 F nor is it low enough to significantly change the physical characteristics of copper or silver wire or the cable jacket. Nevertheless...

You might recall HiFi Tuning data sheets showed differences in resistance between cryod fuses and uncryod fuses.

There is probably nothing more touching in the audio world than when one skeptic reaches out to comfort another skeptic. So sweet.