Recent content by marcioferocha

Hi all, I am new on this audio world and started everything with the FOSI gears (ZH3 and GR70), which had a good price here in Brazil. Talking with some guys (some of them reviewrs), using the GR70 as preamp called me attention. But the question is: does the ZH3 "kills" the warm signature or...

Hi mr. Tootkins, Thanks for sharing this. Actually, I am about to post something in line with this comparisson. I am also using ZH3 and GR70 at home and really enjoying. But it's hard to me too getting the difference between them - as for me is also nothing scientific, just my ears. GR70 is...

Hi Patrick, Very nice review indeed. Hope you enjoy the GR70 as I have. I started recently in audio world and FOSI gears have a very good price here in my location (Brazil). Nowadays, I am wondering if I use GR70 behind the ZH3 or after it. No idea if the tubes signature will be lost. Currently...