07-20-15: Bdp24If the transformer is superior to anything on the market, why all the reported humming problems with RM200?
Knghifi- The Music Reference stock transformer is just fine. Excellent, actually, being an original Roger Modjeski design he has manufactured to his specs. But the art of transformer design, and hand winding them especially, is a dying art. Roger has made a lifetime study of transformers, and by hand winding his design he is able to extend it's bandwidth to a high frequency impossible in a machine-wound transformer---his, ARC's, or anyone else's ...
To me, the real crux of the ARC update/improvement matter is this: Let's say about ten years ago you had ten grand to spend on a pre-amp (must be nice!). Amongst your choices were the EAR-Yoshino 912 (designed by Tim Paravicini, a man very much like Roger Modjeski) and the ARC Reference whatever...Then buy an EAR? Why are you so hung up on ARC? Who is forcing you to buy ARC? Where do you live? IRAN? Is there a new Obama / Robert mandate I should know?

