Well I see no reason for concern unless you missed a few paragraphs in the user’s manual? It’s not well written I had to read it over a few times and I often give it a re-read its my holy bible so to speak, don’t leave home without.:D
If you got really stuck Behringer has an online replay where you can quiz them on an issue that your having with it, and you’ll get a response within 48 hours.
Behringer DCX2496 look for support its middle of the page at the top marked in black bold letters!
http://www.behringer.co.uk/DCX2496/index.cfm?lang=ENG