Stream tidal/Spotify from NDX directly or via Sonos

hi!  I am trying to get some opinions on streaming tidal and Spotify from the ndx/naim directly or Sonos for best sound quality.   I have a naim ndx, fed into a naim dac the naim dac is powered by the naim 555ps.  While not an nds, this is fairly similar!   The Sonos goes through the ndx for ease of control.  I am very mixed, as there are times that I think the ndx offers a deepe sound, better resolution and more detail and other times that the Sonos has superior qualities.  What are others finding?