NAD C 658 - Connection to iMac running Audirvana

Hello, and Happy Holidays.
I am running Audirvana on a 2017 iMac with Catalina. Is anyone using Audirvana with an NAD C658 DAC? If so, what is your experience? I am particularly interested in the experiences people are having with connecting to the NAD C 658 in “Music Integrated Mode.”
Frank Angelini