DAC to pair with Eversolo DMP-A6

What specific improvements are you looking for, what sound characteristics are most important to you, and are you looking for new or used?

Denafrips Pontus 15th, with those speakers my guess is you will like the R2R DAC much better than the onboard DAC. I have both and you will notice a substantial improvement in sound stage (depth and width) and holographic presentation.

The new Schiit Byggy is supposed to be the best Yggi ever. If so, then it is an easy recommendation. 

I should get mine delivered next week. 

My R2R Yggi+ OG that I sold a few days ago is a noticeable improvement over most DACs up to $15k. I sold it for $1900, and it was a reluctant sale to raise funds. The new Schiit Gunigair 2 (sp?) is also getting rave reviews, and it is about $1700 brand new.

I have a DMP-A6, along with a Denafrips Pontus 15th DAC. It sounds wonderful!

For power - McIntosh MC312, Preamp - Anthem AVM 90, Speakers - MoFi Sourcepoint 888.

I was using the DMP-A6 Master with a DENAFRIPS Pontus 12th. Loved that sound. I then added a DENAFRIPS Hermes DDC and the jump in performance across the board was amazing. In all my years of tweaking and upgrading adding the Hermes DDC was one of the best upgrades I have ever purchased. For under 3K you can add DENAFRIPS Pontus and Hermes...