Do speaker cables need a burn in period?

It is all nonsense. Snake oil."I believe that I saw Jesus on a slide of bread; therefore, it most be true".

 For most people, instead of learning and understanding science they choose to follow the blind, and have a justification to their foolish (ego trip) quests to brag about their latest piece of equipment. It is mostly about the hardware specs rather than the music.

Take for example " No one actually knows how to calculate (misspelled Iculate) what speaker cable they need" by b4icu. so much diatribe. 
To the OP @gawdbless, take some time and read @MorgIII  link in the discussion: http://www.roger-russell.com/wire/wire.htm
You will learn something there. 

@ cleeds: I hear nonsense here.

I wasn't criticizing his spelling. I was making sure people knew witch tread i was referring to. We all type/hit the wrong keys all the time. It is understood.