This is very interesting...after reading all the reviews on the Gungnir from The Google search, there was this only one review that mentioned he got better sound from his Gungnir delta by connecting a pair of xlr to rca's to his pre-amp as opposed to rca's to rca's! http://www.polyphonymagazine.com/music-film/2016/2/8/going-discrete-lynx-studio-technology-lynxtwo-vs-schiit-audio-gungnir-balanced-dac Granted this was 2 years ago, and it is the delta version, but it peaked my interest never the less.
Rather than spend over $100 on a Cardas set,, Amazon had a Kirlin set for $7.99. Installed them today...oh my, what difference...Gungnir feeding a stock Woo WA5 with Jena Lab ic's, 75 ohm and rca's from a Sony xa7es CD player.
First impressions are that the soundstage is wider, clarity is improved to a great degree, more micro-details such as a bow across a violin/ cello/ bass, way better bass, more defined. At this point, if I were to nitpick, the soundstage may not be as deep, but If that is the case, the improvements in all the other areas is worth it. It's like I stepped up to another level of incredible sound. It is as if a veil has been lifted form the overall sound.
Also, switching form the xlr/rca's to the rca's, easy to do on the woo, it was louder, and, no more clicks when switching tracks on the Sony.
This is so good, I may splurge for the Cardas! Interesting to hear others impressions. Wonder what benefits the Yggdrasil would have!?