I'm wondering if any forum members have bought the SMSL SU-1 DAC. I've seen a lot of very complimentary reviews and the in depth technical analysis on Audiosciencereview and its glowing appraisal on its technical performance and sound quality. My primary music source is a Bluesound Node 2i and I was wondering if there is anything to be gained by feeding it into the SU-1 over the onboard DAC in the Node 2i ?