The Schitt and Lampi both have a pretty similar tonal balance as in frequency response. This definitely appears to have a recessed upper mid / treble. I reckon I could measure that if I took an FR plot.
The output is low but I guess that is to preserve battery life. I have to use a lot of preamp gain compared to either of the other two.
It is very, very easy to listen to. The sound just floats out of it in a very likeable, amicable way. Nothing offends. It really does change the nature of the sound of my system in a very pronounced way. I could see people liking it better than the other two options if you like a more relaxing less in your face, dynamic sound.
But if you want some excitement and bombardment with masses of resolution, the Lampi kills it with any triode you care to load into it.
It is actually a better 2nd DAC option in my system than the Schiit because of the huge contrast in sound between it and the Lampi.
You could very definitely accuse it of being a bit boring rather than attention grabbing, and I found my mind drifting away from the music on more than one occasion. But it you want to chill I'd take the Frenchie every single time.
I like it massively for £89. All the above is based on 2 hours with it. But I'm not expecting any surprises.
I ordered the Xiang during Chinese New Year and unless I pay 30 dollars for speedy shipping it won't get here for another 30-40 days. Some lovely little Sylvania 5670 gold pins have arrived that look to be of superb quality. The Western Electrics are still to come.