I received an ASUS Xonar U3 USB sound card today and was pleased to find out that using it under Ubuntu 12.10 was as easy as plugging it in and selecting it in the Audio preferences.
However, what annoys me that the whole range of lowest to highest volume seems to be crammed into about 1% of the volume scale. Between about 1 and ~30% you hear absolutely nothing, while increasing the volume by just one step has my earphones blasting at full force. This doesn't happen with the onboard sound of my Thinkpad T420.
Any idea what causes this and how it can be fixed?