Decided to try as I already have a standard fethead and fethhead transformer, both of which do a great job of boosting the sound. The transformer gives a nice 'flavour' to the sound, and The germanium variant gives a punchiness- vvery hard to describe adequately as it is quite subjective. I have a few cheaper dynamic mics and the Germanium gives them character, and less noise- before they were dull, a little muffled in the low end, and lacking much mid range or top end focus. All I can suggest is to try one on your dynamic mics and if you don't like it, return- w/o risk. For reference- I used mine on a Dynacaster DCM3 and a Rode Podmic. The podmic especially, w/o the germanium, needed loads of gain, thus becoming noisy, and I never previously gelled with the sonic character of it. With the Germanium, it's a different mic- in a good way.