Update made concerning 1 KHz -90 dBFS measurements.
I have spent some time listening to both the single ended output and balanced to SE conversion through Jensen transformers on my ZanaDeux SE. I have a slight preference for the XFMR Bal to SE conversion in this setup. The soundstage, 3-D dimension and depth with clarity remain impressive either way. Channel matching, gain linearity and Jitter may be the measurements that most reflect the subjective auditory experience I describe. This is an important DAC development that deserves serious consideration. Everyone should audition the Gungnir MB if possible.