I do not have a Squeezebox myself so I cannot give specific information. However, there are many threads that you should be able to find in the archives on computer based audio generally and the Squeezebox in particular. I follow these as I too am learning about computer based audio.
Here is another site that is useful to learn about such things.
http://www.computeraudiophile.com/
Here is another site that is useful to learn about such things.
http://www.computeraudiophile.com/