Moving-Coil Step-Up Transformer SUT

Is anyone here using an MC SUT?

If so, which one are you using and what MC cart/MM phono stage combo are you using it with?
Denon AU 320 SUT, ZU/Denon DL103mc into my Audible Illusions Modulus 3B tube preamp.
IFi Phono, ATOC9ML/II,into aCinmag 3440 Stepup sounding quite nice!!
Hi all does any one know of any mods for the Denon AU-320 step up mc transformer.