@Terrapin77,
I wrote this before realizing that you had already pulled the trigger.
My DS2 doesn’t have a balanced in, but you can get balanced to RCA conversion connectors, and that’s what I use on the outputs of my Yggdrasil. If you are not in a big hurry, I have a Yggdrasil Less is More board coming in a few months, the updated Unison USB in a couple of days, and a Holo Audio Spring 3 in 5 weeks give or take. The Holo supposedly spanks the Pontus II, which I was originally thinking of buying. So, if you are not in an awful rush, I should be able to give you my input in a few months. From what I gather though, they lay out this way.
1. Yggdrasil OG
Tied for second are the less is more, and the Spring 3 for detail retrieval.
The less is more is supposed to be more "pleasant" to listen to, which I suspect means that the highs are slightly muted, and the Spring I understand is similar. The better than Yggdrasil OG DACs are supposed to be the Holo Audio May, and the Dumfries Terminator I believe it is called, and I believe that one reviewer claimed that the Dumfries Terminator sounded better than the Holo May.
The Yggdrasil is the first component that I have had in my system that I absolutely needed an isolation transformer due to noise on my AC. I may have been able to benefit from one before, but I thought all of the power conditioning and various power cables were snake oil before out of desperation I tried an isolation transformer on the Yggdrasil. The highs were ear bleeding hot, but to my disbelief the isolation transformer cleared up that issue.
Anyway, having the DS2 I am assuming that you love neutrality, so that we then share the desire for a precise playback. Therefore we may share similar taste in DACs. The Yggdrasil with the older, less capable analog card was reviewed as sounding better than 13K and even an 80K DAC if memory serves. It’s no more perfect than is any piece of equipment, but it is pretty darned good.