HiFiStor

After some time, finally find time to make some new projects. First project which I decided to build during this winter time is Zen 4 Penultimate . There were a lot of discuss about this amplifier and if I can to conclude there are two sides. One very like this amplifier and other one which do not like . No middle. I still can not decide in which group I belong . Despite very clear and understandable design , which is made mostly for people who looking to build their first A class amp , can not neglect his value as hi fi A class amplifier. After finish designing , get the boards and populate components , turn on PSU amplifier start working from first time, no white smoke , no storms no nothing , simply music started to play . Short video is uploded HERE

Setup:

1. Put 25k pot CCW position at the end
2. Clamp DMM on R0 (3w 0R47)
3. Slowly start to spin 25k
4. After warm up amplifier value on dmm should be 0.66V