I finished the ZEN amp , but i find a little "hum" on the speaker , i isolate the transformer and using 2mH air core coil already and the total of supply capacitance is 40000uf which is same with the original circuit, but still has a "hum" problem. Any idea??
But the sound is very very good!! Thanks Mr.Pass.
But the sound is very very good!! Thanks Mr.Pass.