Okay, it should work properly with Audirvana. Yes, you can update from 2.00 to 2.10 on the DAC in one go, you don’t need to update to 2.02 first.
- Make sure the volume control in the software is at maximum, 0dB. Anything else will make the update fail.
- Make sure there is no upsampling turned on in the software.
- Make sure fade in/out is turned off.
- Are you connecting the Mac directly to the Vivaldi DAC or is it going into the Vivaldi Upsampler?
Your English is very good, MUCH better than my Italian 