Benchmark DAC3 HGC, new to me, knob was loose, but I managed to find the USA size allen key required in my toolbox (phew!) and a drop of loctite later, all good. Have yet to test the unbalanced RCA out but all the rest seems good. For headphone use initially in my WFH office, perhaps some Genelec 8030C to join it for when I don't fancy headphones, and if I really fall in love it could form the basis of a main rig too as it has a couple of analogue inputs as well as USB, a couple of coax and a couple of optical digital inputs. I just need to get the firmware update that means it will not junk its EEPROM if you are unlucky when you turn it off - SVC being very helpful on that front. Moving in to the late 2010s from my early 1990s fixation with Naim ... perhaps.