I just received my Xonar Phoebus. The main reason I chose this soundcard is its remote control for the volume. (I have two monitor speakers without volume knob: M-Audio BX5 D2)
But I can not get it to work for the speakers. When I am turning the volume wheel on the remote I can see in the phoebus software that in the upper right corner the volume slider is moving. But the volume does not change. If I change the volume slider by mouse it works.