The Physics of Electricity

In the autumn of 1884, Károly Zipernowsky, Ottó Bláthy and Miksa Déri (ZBD), three engineers associated with the Ganz factory, determined that open-core devices were impractical, as they were incapable of reliably regulating voltage.[10] In their joint 1885 patent applications for novel transformers (later called ZBD transformers), they described two designs with closed magnetic circuits where copper windings were either wound around a ring core of iron wires or else surrounded by a core of iron wires.

 
Then there's the utterly unique thing about iron.

iron is the destination gateway for black holes. No matter which direction they come from (there are two directions in activity to get to a black hole)

They either move up to being iron and then black hole, or they move down to iron, and then a black hole. (just one way of phrasing it)

That hysteresis and the permeability, the unique parts of it re the table of elements.

https://en.wikipedia.org/wiki/Permeability_(electromagnetism)#Values_for_some_common_materials

Is there something beyond the normal considerations that we are simply not 'getting'? Something about... hysteresis, permeability and time-space?

Something seems to be saying that if you want to understand black holes, you have to properly and fully understand iron, and to fully understand iron, that you must consider all of what a black hole really is. 

Now..isn't that ...just..interesting.

Becoming iron actually doesn’t guarantee it will become a black hole. Far from it. Only compressed stars with mass greater than 3-4 solar masses will become black holes. The rest will become something else, a Neutron Star. Of course, no iron or any other elements exist in a black hole as they have been crunched down to their basic subatomic particles. A black hole with the mass of the Earth would fit in the palm of your hand.

I know there is difference between a Sony receiver and Krell FPB amplifier

Be careful what you compare to try and draw a valid conclusion on something else. I know there is a difference between a Yugo and a Lamborghini. Means nothing about cable.

None of this "theory" matters if you can't pick out the premium cable every time with the lights out. It should be easy, since it makes an obvious difference.

This just in from Furutech,

“Alpha OCC-DUCC Speaker Bulk Cable DSS-4.1

Furutech’s α (Alpha) OCC‐DUCC is one of a select few of conductors that Furutech engineers have found to excel in sound reproduction. α (Alpha) OCC –DUCC is constructed using a combination of DUCC Ultra Crystallized High Purity Copper and Furutech’s world famous Pure Transmission α (Alpha)-OCC.  

Furutech DUCC Ultra Crystallized High Purity Copper -- supplied and regulated with strict quality control by Mitsubishi Materials Industries -- is one of the best conductors Furutech engineers have found for signal transmission. (MMI is the leading manufacturer of the highest-purity oxygen-free copper in the world) Mitsubishi process this extremely pure oxygen-free copper with new technology that optimally aligns the crystals while reducing the number of crystal-grain boundaries resulting in a tremendously efficient conductor. Straight OCC’s benefits are its larger “fibrous” crystals in which one dimension is longer than the other two so as to create as few crystal junctions as possible. Thus, OCC’s sensitivity to directionality; one path exhibits the least resistance. Furutech’s world famous Pure Transmission α-OCC is the result of further processing with the Alpha Super Cryogenic and Demagnetizing treatment. However, DUCC purity goes a significant step further. Mitsubishi Materials designed the new conductor to optimally align the copper crystal grain structure in addition to reducing crystal grain boundaries. As a result, DUCC is less sensitive to directionality than OCC.“