rbstehno - "It’s funny that people are worried about sq when they use usb to their dac. If you want to increase sq, stop using usb."
Interesting comment, but both Ultra Rendu and Optical Rendu use a USB connection to the DAC.
I also had a Wyred 4 Sound 2v2SE DAC that the owner (E.J. Sarmento) recommended to connect both his MS music server and a Roon Nucleus to via USB for best sound quality.
How do you connect?