When you're turning the volume control, unpleasant and loud noise in the headphones is clearly audible.
This DAC does not reproduce low sound frequencies at all.
Maybe I've got a defective one.
In any case, I'm going to make a return of the product...
High and medium frequencies are a little bit clearer compare to the integrated sound card, but not striking. I can’t say that the sound is impressive and you immediately will hear the difference between DAC & integrated sound card.
Again, maybe the reason is I've got a defective product.