I ask this question strictly for my own education and interest in this thread from a science point of view. I have no opinion. Having taken college level physics I understand the principal, windings, etc. As far as audio SQ though, would it be safe to say that it should be a perfect conversion as long as they dont have frequency/phase dependent properties? Is there a physics reason to think they are dispersive? If they can be, then the materials, construction, etc matter. Then we run down that rabbit hole and in this case yes, they affect SQ unless built in the best possible manner. In any case it would need to be shielded from EM as that induces a stray current ie noise (actually how they work really).
SUT - electrical theory and practical experience
Some vinyl users use a SUT to enhance the signal of the MC cartridge so that it can be used in the MM input of a phono stage. Although I don't understand the theory behind it, I realize that a SUT should be matched individually to a particular cartridge, depending on the internal impedance of the MC, among other things.
Assuming an appropriately / ideally matched SUT and MC, What are the inherent advantages or disadvantages of inserting a SUT after the MC in the audio chain? Does the SUT theoretically enhance or degrade the sound quality? What does the SUT actually do to the sound quality?
Thanks.