i often use UMC PRO for my Vfx software because of no need the adapter (usb powered only) it makes me comfortable & less set up during my gigs, but the volume of headphone is very low! i cant hear when im at the club. i reinstall it and install both Vfx and UMC PRO driver several times but still the volume is low.
in the Cross gui is a volume control for headphones and in the U-Mix hard ware there is a physical volume control,, if the Vfx gui dosnt have a seperate headphone control ,can you adjust the volume levels for the headpne output in the audio control panel not familiar with the Vfx software ,,just thinking about the possibilities
is the physical mix control on the umixcp set on mix or headphones
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in the Cross gui is a volume control for headphones and in the U-Mix hard ware there is a physical volume control,, 
