I need to use my Tascam M-2600 16 ch for live gig for the simple reason need to create 5 separate monitor mixes. Is there an easy way to do this with the Aux sends ??? Tried hooking up JBL Eon 315's to Aux 5 thru 8 but have low volume and only 6,7,8 will work.Really need to figure this out...