Upgrade Hint 6?

Good question.  When I stream music from my Bluesound Node 2i I do not discern a noticeable difference between the Node DAC and the Hint DAC.  Since the Node is relatively inexpensive I figured maybe a DAC upgrade would be warranted.  

Historically, the DAC section in the Parsound integrated has been a weak spot.  While the new HINT 6 uses a different DAC chip (ESS), it is likely that they haven't upgraded the DAC circuit itself.  Anyone have direct experience listening to the old HINT DAC side by side with the new HINT DAC?

Also maybe the Node isn’t sending a high quality low jitter signal to the Hint 

When you use other sources, such as CD, is the Hint everything you want it to be ?