I am using the ADAT outs on a DM-4800 to feed a Behringer P-16 monitor system for the studio and was wondering if there is an output control for those outputs. I need more volume for those stations and was just wondering if I was missing something or some way to raise the volume of those outputs. Possibly some nested control I didn't know about, or maybe something really basic that I should know about that has evaded my mind.