It's all relative, but the differences to me were significant in terms of resolution. I tried three balanced DACs, both SE and balanced into the MJ. Of course that may depend on the rest of the chain. YMMV.
As for the Gungnir, I prefer it a bit more to the X-Sabre. Smoother overall balance, slightly less micro-detail, more tuneful bass, and much more dynamic (although I've noted that some folks have felt the Gungnir was overly dynamic. I'm not sure there's such a thing as overly dynamic with recorded music.)
The Concero is a decent DAC, but nothing special.
Edited by purrin - 8/19/13 at 11:12am