They claim that the device can drive speakers and multiple headphones, that it can compete with some of the best desktop headphone amplifiers but we're left doubting that it can efficiently drive the HE-6? With its notoriety its a wonder if the HE-6 is more of a bad design than a good one given its requirements but this device should be able to drive it if it can do half of the things it has been claimed it can do.
Will have to wait for someone to open this baby up and see if it can be modded to provide a balanced output, or wait until a next release as its a setback IMO.... you don't buy expensive cables to go with your headphones to only then use the single ended.... and if it sings with single ended it must be able to sing and dance with a balanced output.
I don't think driving the HE-6 is an important quality for the Hugo. It may compete with a lot of desktop headphone amps, but that doesn't say anything about its ability to drive the HE-6, as virtually none of those headphone amps can drive it either.
The HE-6 design is unique, that's for sure, but having heard it well driven I would never call it badly designed.
I'll be able to audition a Hugo sometime soon, will make sure to pack my HE-6 for the occasion.