Reply To: Justboom DAC Zero -headphone cpu activity noise

19. April 2018 at 5:38 #35225

I have the same issue using RPI zero and justboom dac zero.
I think that noise comes from the power supply of RPI zero.
Maybe isolation of the power supply is not good enough, especially the headphone circuit.
I built a headphone amp for zero before.
It used 5v form RPI Zero, it had the same problem.