* Personal feeling:
I have a chance to own both M11 Pro (Past) and Hiby R6 New (Present).
All I can say is The M11 Pro has mid into-your-face and narrower soundstage than Hiby R6 New in both width and height (I use Campfire Solaris).

Tbh i like the sound of the r6 pro than the r6 2020 the SQ difference is minimal but when listened to Cayin N6ii it is musical and detail too. Probably will get the cayin N6ii in the future

Thank you for not telling us that you recieved that unit for free in exchange for "honest" opinion. Clear and objective your review's are .Please continue

Clearly, all their effort went into this while appointing an intern to oversee the R2

hiby R6 is not the most powerful DAP neither it was. Pioneer got a snapdragon 820 at its core that even put modern mid priced android smartphone to shame

For IEM use, would you pick the Hiby R6 or Cayin N6ii in terms of sound quality?

The N6ii is clearly more resolving.