Jason Victor Serinus has posted a review of the M2TECH hiFace DAC ($295) at AudioStream. His conclusions:
“Beyond its marked sonic superiority to the $249 Audioquest Dragonfly, I don’t know how the M2TECH hiFace DAC compares with the other new, diminutive bargain USB DACs on the market. I only know that you absolutely must hear it to believe how good it is. ”
You can read the full review here.