“What it does very well- space very big, what ever was recorded, fantastic attack and tone. It is very relaxed there’s no grain, if the music is really big and bold thats what you get. I listen to a lot of Scandinavian trio jazz, very spacious it just opens up well everything, the tone of well recorded acoustic instruments is just beautiful.
What it does bad- nothing that I can find. One of its great quality is that it plays well with any amp, some autoformers and regular preamps have trouble with certain impedencies this one does not.”
https://www.superbestaudiofriends.org/index.php?threads/icon-4-pro-autoformer-preamp.14420