I've returned my unit to the store I bought it at in Stockholm, Sweden. They were the ones who just sent 6 units back to Nuforce that had the "tone"-problem. I'm waiting curiously for a response.

Quote: No, unfortunately not. I tested the dac at work and had no equipment available. I will buy a cheap RCA to stereo plug adapter asap and try that out.

I just noticed that using the free usb port instead of the shared ones in the hub makes the uDAC generate a noticeable higher volume. Strange.

Hi. I just received my uDAC-2 and I noticed the tone immediately and it's in fact very noticeable if you listen to music where the sound picture isn't very complex. I tested it against a tone generator and it's close to 2000 Hz. I tired different ports on my computer (Macbook Pro 15" Core...