The Future of Hifi is just being Discovered

If you are using a transformer for audio signals, then the least of your worries is conductivity of a wire.

Magnets are not superconductive. The conductors in electro-magnets can be, but they are not treated to create superconductivity, they need to be cooled to cryogenic temperatures to be superconductive. We are a long way still from room temperature superconductors. If you think skin effect is a problem now, try it with superconductivity.  Fixing one problem does not fix all problems. It will not fix inductance either or capacitance.

In audio, the conductivity of wires except perhaps in speaker voice coils (from another topic) is far far down on the list of issues impacting sound.  This is just grasping at straws to try to justify wrong preconceived notions.

 I had read that cryogenic treating certain metals improve there conductivity but you correct does not make them a superconductor. 

"The wheels of the bus go 'round and 'round, 'round and 'round, 'round and 'round..."

"This article has to do with how electrons move at very cold temperature. Alas, cables and tubes taken to cryogenic levels seem to affect the electrons to some level that is just being learned. Relax. "

And people worry about their power bills if they run Class A amps...LOL..

Hey it is interesting, showing that even our "experts" don't know everything. There is something new to be learned - always. 

@moonwatcher , our "experts", as communicated in the article, fully expected this result. They were never able to prove it till now.