I reviewed this DAC as part of a combined exaSound e22/e20 review. Instead of just duplicating that review here, I will provide a link to it:   http://www.head-fi.org/products/exasound-e22-dac/reviews/11541   Hopefully this isn't breaking any rules.

Intro   From the land of ice hockey, frozen wine, and decent beer, comes:     Two DACs manufactured by a small company in Canada called exaSound, run by a smart guy named George Klissarov. Both support PCM up to 32/384 and DSD up to DSD256 over USB. The e20 mkIII will run you $2499 and the e22 will run you $3499. exaSound also sells an 8-channel DAC called the e28, for $3849. See here for a spec comparison chart.   I bought the e20 first, and after deciding I liked it -- a lot -- I bought the e22. The e20 will serve office duty with my...