Hello , just for your info. I just bought a secondhand Little Dot MKII for fun to see how that compares to the headphone output stage of the RMI ADI DAC FS 2 and ..... well..... they do not like each other at all : at the loudness level I like, the MK II sounds awfull and distorted: However , with my Focal Clear there is absolutley no issue. So the AEON RT is really not very efficient.