Sorry I can't be much help as I use J River with Windows 7 and 8. J River is set to max volume and I adjust the volume in 'Meridian USB control Panel. I would have thought it would be similar.

Cheers

Shaun


DSP6000, 5500 centre, SW5500. Kef surrounds. G61R, HD621, MS600, MC200, G55, Lumgen,Oppo bluray player, Bluesound Node Icon