I like it much better than the THX 789 (which I found to be a bit bright and not all that technical as hyped up to be), but I'd have to listen a bit more to get a decent idea. Significant difference in price I know (which is obvious).
There is a similar characteristic of CTH, with more refine-ness to the sound with balanced. Definitely an improvement.
Does Cavalli have a house sound? It seems to be a bit of warmer low-end? Which jives with me, but don't like too much of it. Tonally, this is the kind of sound I find more realistic compared to what people consider 'neutral?'
Balanced certainly is an improvement over single-ended, but I can't be totally certain because I'm using a different single-ended DAC. I'm feeding Gumby balanced, and it does seem to output good ambient feel to live recordings compared to the single-ended DAC. It does seem to match well with Gumby balanced.
The way I characterize this amp is, it has slight V-shaped response with headphones. It sounds to raise bass up a bit with treble articulation (not bright). Warmth with treble articulation raise (mainly warm). It outputs rich meaty mids. I can't criticize this amp that much (it seems for the most part a good sounding amp), but only slight improvement it can have is in the low-end, perhaps more articulation there with tiny bit reduction in warmth (that's all).
And obvious design flaw is lack of a gain reduction switch. With balanced input or high voltage SE, the headphone output has a bit more gain than people would listen to. This is a big draw-back and there's got to be a revision for this feature.
So yes, I would say this amp is the point of actual hi-fi sounding equipment past the usual sounding solid states (although tubes are a bit different).