Uday said: The HA-1 functioned beautifully in all of the roles I asked it to play in my system, and its sound quality was first rate. Its build quality is fantastic, it’s very user friendly, and it works as advertised. If you’re looking for a one-box headphone amp, preamp, and DAC, your search should begin and end here.
Read the SoundStage! Xperience review.
The gist: Oppo seems to only make winners, and the HA-1 is no exception.