FLTWS
Headphoneus Supremus
I've used my Ether C Flows (and less often, my Æon closed) with Jot (truly balanced), Neurochrome HP-1 (not internally balanced, but balanced cable output), and Lyr 3 (single-ended). Overall, Lyr 3 wins for my everyday headphone listening. Jot is amazingly fast but has a shallow soundstage and has a sharp-edge upper midrange that goes too far with some recordings. Lyr 3 is still reasonably fast, but is smooths those edges a bit, especially with the Ken-Rad VT-231, and shows a deeper soundstage. The HP-1 is I think the best of the 3 from a reference point of view, but the Lyr 3 is more engaging.
My exact experience with the Jot but I plan to keep it as a reference point and I find I can massage the sound a bit with Loki. If Schiit come up with a Loki Maxi at some point with say 2 more hinge points in the midrange, that would be a good thing.