Do I need clean USB power when using DAC with its own power supply?

[Rexp]

4 minutes ago, March Audio said:

I agree. Who is doing that?

 

You absolutely must measure the dac output. You then correlate  subjectively with what people hear.

You still don't get it, there are no measurements that correlate with the listening experience. You science guys have failed to develop the appropriate tech. 

[Rexp]

4 minutes ago, March Audio said:

Sorry its you thats not understanding.  There are subjective listening tests that correlate jitter levels with audibility.  That isnt measurement, that subjective listening.  Its a correlation of cause and effect.

Is jitter the topic now? Sorry, missed that. 

[Rexp]