Absolutely great little DAC/Headphone amp. I am using the wall wart power supply that came with my Chord Qutest to power this DAC for desktop use, and it sounds very good. I also have a iFi PowerX supply that I can use, but the main board fried while using that and it had to be returned for warranty repairs. Not sure it had anything to do with the iFi supply, but so far no problems with the Chord supply.
With music paused in JRiver, I can turn the Mojo2 volume to full output and I get absolutely zero detectable noise through the headphones. I get the same result through the Diamond 12.0’s with both the Mojo2 and the Rega Brio-R set to full volume.