DAC w Tube itch: Audio Mirror

My guess is you might have a difficult time getting responses to your exact question.  A question back to you... why only Audio Mirror and not Lampizator or Aries Cerat.  BTW, I considered the Rockna Wavelength prior to settling on Lampizator Pacific.  I too wanted an all-tube system.  

or. the killer Aesthetix or Brinkmann or Lampizator…..

i had an audio mirror tubador 3se for some time, quite liked it, but i am not qualified to comment on the comparison asked by the op

otoh, @verdantaudio knows the rockna's sound, but not sure he has had an audio mirror unit