Upgrade to McIntosh

I really like the DAC2 board in my C2700, I also have my TV in the same room and the ARC input is a godsent for integration of the TV into my audio system. As for if its better then the DAC1 board I cannot say but everything i read says is an upgrade.

I would not hesitate in getting a MAC per-amp with the DAC2 board if you have digital in your system. It was better then the Schiit Gumby multi bit DAC I was using prior ( $1300usd) and better then the Aurender A10 internal DAC i have now. Its quite lively sounding and has good detail and sounds like music, i found the Aurender A10's DAC to be quite dark sounding in comparison. the Schiit DAC is a great value for the money though but not quite up to the DAC 2 board specialty when taking into effect the ARC integration and inputs available. 

I owned two MC275 MkVIs bridged as monoblocks paired with MC52 pre.

Excellent in all respects; drove my vintage Infinity RS IIs no problem.

Traded them  for MC830 monoblocks for more power and to avoid the tube warmup situation.

The DAC2 module uses the ES9028PRO chip which is well respected. Same as benchmark DAC3 that goes for $1800. Having heard both I would stay they are comparable with the Mac having more natural sounding highs to my ears. I have not heard the DA2 in the Mac as a stand alone unit so I can’t really comment on soundstage and finer details as the preamp plays a big part.