Will this player be enough to open Hifiman Sundara headphones?

Which filter is better to use: Linear-phase fast roll-off filter or Minimum phase slow roll-off filter or Hybrid fast roll-off filter? What are the features of the implementation of filters in this player? It seems to me that Hybrid fast roll-off filter is the golden mean? Do these filters work...

Hello Shanling! I would like to ask you: 1) Will the ESS Saber 9068AS DAC be better than the ESS Saber 9028Pro? 2) Why do you use BUF 634A in Shanling M6Pro 21? It's bad for music. Or I'm wrong? 3) I had a Shanling M6Pro player on 4497EQ. Its power is 600 mW, the comfortable sound level is...