I don't have 3xp, but I had 3xr, composer+soloist 3x before. The dac performance is about on par. Which one is better all depends on your taste, but Burson ones have balanced output.
In terms of DAC/AMP, I will have to say both Burson combo are ahead. They are able to drive almost any headphone on our market amazingly. However, considering about the size and portability of Hugo 2 (you can also attach a 2go with it), we can easily move it in our house and carry it around the world without sacrificing too much in SQ. It was also aethetically designed. That's why I let go my Bursons and kept Hugo2go.
If you do need portability sometimes or have limited space on your desk or hate cable mess, Hugo2 would be a good choice.
I am always wondering how to understand general statements like A is better than B.
I didn’t have access to that many different DACs and Amps and frankly speaking I am not really keen on going down that rabbit hole. But I have heard some expensive DACs and when I bought the Mojo, I was immediately impressed by the „analog“ and "live" feeling, the midrange detail and the staging. It made me replace the $4000 DAC in my 2 channel system with a CHORD 2Qute to get that kind of signature also in my stereo listening.
The Hugo 2, which I bought 1,5 years ago surpassed the Mojo by a bigger margin than I had expected, providing more definition and detail over the whole frequency range, but most notably especially in the bass and treble, where the Mojo is a bit relaxed and softer. H2 also had a lot more stage width, depth, better layering and focus. I was quite surprised by the difference to the Mojo.
It also pairs really well with the Focal Clears, delivering a very defined, textured and articulate presentation, but without sounding edgy or „digital“. If definition is what you are after I think the H2 is doing a great job with the Clears. and it's plenty powerful to drive the Clears.
With the Hifiman Arya I am not sure if the output power is sufficient, but the pairing still sounds excellent, better than the Focals in stage size, separation and detail, but worse in dynamics, a little uneven in the R/L stage distribution and somehow less natural and balanced.
To come back to the original question, when you say the Burson is on par as a DAC and ahead as a DAC/Amp combo, can you describe that in a little more detail?
FYI
@exiliox