I have the mini v3 outputting to the dac board - which has distortion. This sounds like it is a certain frequencies only. Sometime bass notes, sometimes mid voices.
without the dac board, via minijack from v3 mini no distortion.
Things I have also eliminated, as potential causes:
- plugging, unplugging, moving around i2s data cable / covering the data cable in thin wrap of foil as a shield
- moving power lead, etc. away from speaker cables, speakers, etc.
- swapping speakers, amp, cables, etc.
Does this sound like the dac is broken, or perhaps needs a dedicated supply…?