Dee,
If you are going to use the squeezebox, I'd recommend leaving it's volume at 100% and using the colume control on the stereomour. The digital volume control on the squeezeboxes is not a a dithering type, but one that drops bits so the signal quality will get progressively worse the more you turn the volume down.
HTH,
Jim
Jim Rebman -- recovering audiophile
Equitech balanced power; uRendu, USB processor -> Musette DAC -> 5670 tube buffer -> Finale Audio F138 FFX -> Cain and Cain Abbys near-field).
s.e.x. 2.1 under construction. Want list: Stereomour II
All ICs homemade (speaker and power next)