The Metrum Octave is superior to Ack Dac2 or Promitheus (not tube). I tried these also with an Audiophilleo2, but they are no match. Sound constricted and muddy in comparision.
I would strongly recommend the addition of a reclocking device, such as Audiophilleo (needs an USB input however). Maybe rather choose the Metrum Quatrum to stay under 1k.
I would strongly recommend the addition of a reclocking device, such as Audiophilleo (needs an USB input however). Maybe rather choose the Metrum Quatrum to stay under 1k.