Some comparison quoted from Head-fi
QUOTE
I have a question. Has anybody compared this DAC in this thread or another thread vs any of the other more expensive DACs like the Zhaolu, DAC-1, or Lavry DA10, Headroom Micro Dac or even the DAC and headphone out of a quality CD/DVD/SACD player like the Nad T585?
I'd put the stock zero to be close to the Musiland MD10, which is twice the price of the zero. stock 2.5C is a tad
bit better but the Keces is more musical.
With the DAC HDAM, it is better than all three above, The OMZ 4.1 is still slightly better - more "flesh and bones" than the modded Zero. But it's 90% the level of the OMZ for one-third the price.
After the the OMZ and the modded Zero, I can't listen to the stock unit anymore. Nor the MD10 and stock 2.5c for that matter. And yes, I have used all those DACs so my comments are valid.