Hi, I have four Node2i. In all cases I use external DACs and upgraded power cords. In addition one unit (to date) has been modified with a PCB DC power interface and a linear external low noise PSU. All these are a step up in SQ over SOTS. I use the digital coaxial output where I can then RCA (L/R) - depending on the DAC (my early R2R DACs are RCA only).
