I reside in S. Korea and bought MiniBrute last week.
I'm learning a lot about true analogue experiences and it's a musical delight.
However, there's one thing very curious.
As some people mentioned above, my MB also has a same problem.
Running oscillator at Master Volume (including Phone) knobs at Zero position.
No ground problem, no wrong connections, everything is clean as informed.
But I can hear the very tiny, small sound Oscillator running when the master knobs are set at ZERO.
One thing interesting is that when I turn the Master knob a little bit, very little like 1~2mm, clockwise, the noise disappers.
Is this a hardware problem?
Will it be possible to be fixed with firmware update?
Not so big major problem, but still makes me concern.
I will be waiting for a helpful solution.
Have a nice week all you guys!!!
circfine from S. Korea.