When I was in the market for a streaming DAC, I auditioned (amongst others) the Bartok streaming DAC, extensively. But, I ended up preferring the overall sound qualities of the Ayre Acoustics QX-5 Twenty streaming DAC over the Bartok, and the others. The QX-5 Twenty’s streamer is excellent, as well. I also thought the QX-5 Twenty was a much better value for the money than the Bartok, and some of the others. I’m extremely happy with the Ayre Acoustics QX-5 Twenty streaming DAC, and it’ll probably be my last DAC/streamer. Happy listening.