Just fired up my new Hugo for the first time last night. All I can say is Wow . . . just . . . Wow.
I have always loved my ALO Rx Mk3-B+ as a portable amp, so I hooked it up to the Hugo to see what it would do. It worked fine but added nothing. The Hugo actually did better without it and had more than enough power to drive my 600 ohm DT880's to levels far beyond what the ALO amp could accomplish.