Aurender A15 or N200 with Mac C2700

I recently purchased a McIntosh C2700 and am pairing it with a pair of MC611s driving a pair of Harbeth SHL5+ HD speakers. Speakers will likely be changed to SF Serafinos or Amatis down the road For streamers I have narrowed it down to an Aurender N200 (and would use the DAC2 in the C2700) or the Aurender A20 and use its internal DAC. Is the DAC in the A15 much better than the DAC in the C2700? Are the other components in the N200 a step up from those in the A15?

Thanks