I've got a numark mixtrack pro controller that has a headphone jack on it, and also an audiobox usb that I use for my studio monitor outputs. Inside traktor pro 2 (and studio one 3 as well), I do not have an option to control the volume of the headphones output of the audiobox usb through the application itself (only out 1 and 2 are available as options) so I am wondering if it's possible to control this volume at all beyond turning the knob on the box itself, which is a bit awkward in the middle of a mix. I've tried to use asio4all to split the outputs sending cue to the mixtrack pro headphone jack and the main out to the audiobox, but I get static on the mixtrack pro headphone port for some reason I can't track down.
The Audiobox is a new product for me, so it might simply be the wrong tool for the job... but I'd appreciate some more knowledgeable feedback before I opt for something else to make sure it's not a keyboard to chair interface problem =]
Thanks!