I appreciate if some one can help me resolve this problem. I have my RMX2 usb conected to a laptop. From the RMX2 i`m getting out (main) through XLR output for my enthire system (inside) controled by main volume knob. Now i wan to install another exterior system that i want to be able to controle it`s volume separatly from the console. So i have to send the signal out from the RMX2 through the 1&2 Booth Output. How can i control those 2 system independent one from each other (volume) ? Appreciate any advise.