My best sound is with my Aurender's SPDIF output into my LAB 12 DAC 1's coax input. In my set up it sounds better with the N200's clock than the DAC's internal clock in my set up. Maybe a new USB cable rather than the fairly generic one would equal my DH Labs coax. Not sure.
I had a few drinks last night and put about $700 in DH Lab cables in my shopping cart.... I didn't pull the trigger but I could use a high Quality USB and some longer RCAs