I too have purchased a Nu-force UDAC. Paired with my Sennheiser HD 555's, I find this setup to be very satisfying. One bump in the road to mention, which I have not addressed with Nu-force (& may decide not to): My UDAC doesn't like to be powered up continuously. Left turned on, after several days a whistle developed in the left channel, that disappeared after the unit was powered off for an hour or so. This problem has been repeatable, as I have forgotten to turn the unit off after several satisfying listening sessions of multiple hours each. The unit was also warm to the touch after several days of being powered up. The whistling has occurred when the UDAC unit has been driven, or idling. Once cooled down and off for awhile, the unit comes back sounding as good as new. Guess the power switch is on there for a reason.......but Nu-force does not provide any warning about it being powered up continuously. The sound is so impressive on this little unit, it makes me want to audition their amplifiers....
Netbook to USB DAC to Headphone Amp on Batteries
Are there any good DACs that I can use with a laptop or netbook, which are either USB powered, battery powered, or rechargeable for at least a few hours?
I am very happy with my Lenovo netbook for traveling, and have a spare 6 cell battery which means I can work and/or listen to music for most of the flight to London.
My Grado headphone amp travels easily and runs for hours on 9 volt batteries.
So all I need now is a good DAC?
Would the HRT Streamer or Musical Fidelity VDAC work this way?
Thanks for any ideas.