by Bob Fri Jun 24, 2011 12:58 pm
The first time I ever heard the expression Adamantine steel was as a young child when I watched the classic science fiction movie, “Forbidden Planet”, the screen adaptation of William Shakespeare’s “The Tempest”. William Shakespeare loved Adamantine steel. It appeared in several of his plays, most notably “A Midsummer Night’s Dream” in which a sword of Adamantine steel was crafted. In recent times my use of the expression Adamantine steel derived not from the Fantastic Four comic book, rather the Conan comic book in which the minor wizard Xolotan (sp?) crafted a beautiful sword of Adamantine steel. The most enduring image I have of Adamantine steel is when the Krell monster from the Id of “Forbidden Planet” broke through an impenetrable steel door crafted of Adamantine steel. It seems that more than one audiophile has used the Krell of Shakespeare’s forbidden planet to define something regarding amplifiers.
In truth, Adamantine steel is an actual steel developed early in our century (I think in the 1930’s or 1940’s) to define the hardest steel known to man. And it still is. At least as early as 1952, U.S. Steel had a catalog including Adamantine steel with a hardness rating at the top of the list of all the steels it produced.
I chose the Krell Adamantine steel for my output transformers because to this day it is the hardest steel known to humankind. And the harder the steel, the lower the induced eddy currents and the better the transformer.
As for designing this amplifier without true science, using only the language of audiophiles severely misses the mark. It’s not possible to design an amplifier at this level of performance without extensive use of physics, science, and mathematics. To believe otherwise exposes one’s own knowledge to be of a meager and shallow kind.
A final word. Since I invented these output transformers, I get to call them anything I want.
Bob Carver