very happy with my hugo as an all in 1 box solution.
Hugo design principles are not like the norms. The DAC inside the Hugo is crazy good. Hugo is not a traditional setup where you have the DAC feeding an amp stage. it's was designed with out a dedicated gain stage. So you're basically listening to a volume adjustable output of the DAC.
which i feel is very natural sounding or life like and nothing more if you add an amp you add color or other variables to the sound which you may like or not.
its an experience you need to hear for yourself, red book music sound way better than they should details are there but it feed to you in a musical way not analytically.