I did a review of the Hugo recently. Here It is for anyone interested ¬
Hugo comparison to Geek Wave. (I have not heard the Wave): http://www.head-fi.org/t/713829/light-harmonic-geek-wave/660#post_10871785.
As 'comparisons' go, that's right up there with 'Chevy's rool and Fords suck !' ;)
I'm in a search for new DAC for HeadAmp KGSS -> Stax 404LE, now I can buy used Lavry DA11, NAD M51 or Metrum Octave for practically the same price, which one is better for rock and metal music (more dynamic, better PRaT, overall balance)?
If you are using USB and not afraid of hard hitting dynamics, get the Gungnir. The DA11 does have a nice stereo width setting for headphone use, so that may be a consideration. Both DACs are on the smoother sounding side without the digital hash. The Gungnir is a little sweeter sounding with vocals.