Even with Ubuntu Linux good!

Against the onboard sound of my Sony Vaio a dream!
Clear, clean, good channel separation. U In classical fine accentuation of instruments. Voices.
But enough "steam" for pop music.
Finally, no noise from the laptop's innards more.
Even with headphones beautifully.
I do not feel the long USB cable as a disadvantage, making the way for short amplifier.
Depends with me on a 4-way passive USB port, the juice is enough.

Plug & Play with me went with Ubuntu 4.14 is not so:
when connected to USB Click once on the speaker icon in the taskbar, then "Audio Settings ..."
In window that opens when each current source to "PCM Audio Codec" switch.
This must be repeated for each playback source (eg Audio Player, VLC Player, browser, etc.) once.
That's it!
Actually the settings are saved with me but the PCM audio setting is toward u. Again for some reason gone, then simply repeat.

Gruss, Croconut