Hi, I have managed to put all my cd's onto itunes (well almost all), and connect my pc to my dac using a optical cable. The only problem i now have is that itunes insists on applying a digital volume control to the music unless you use a airport express. I would assume there would be a sound improvement if this could be avoided. Does anyone know of anyway around this, as it is driving me up the wall. Cheers in advance. Steve.