Another option I was thinking about was returning or selling the Qutest and picking up the Chord Hugo TT2 when they are available, since that will have Balanced outputs.
Honestly slapping a GS-X Mk2 on top of a Hugo TT 2 is probably overkill. I'm guessing the sound would not be too much different. At that point, might as well either go Stax (or MrSpeakers VOCE) or do something else with the money in my opinion.