02-17-2021, 04:36 AM
If under-voltage can be ruled out then its not obvious to me what might be happening. I have an Allo Revolution DAC that I've connected to a 3b+ and a 4B and no issues whatsoever. I also have an older JDS Labs ODAC and no issues with that.
Maybe try swapping in another USB DAC if you have one handy and see if the issue reoccurs.
Maybe try swapping in another USB DAC if you have one handy and see if the issue reoccurs.