Reply to upcoming gig.. a little help needed with controller

hey guys, just a quick one.. i've been using ssl for some time now, however i have a few gigs coming up that require me to bring my own gear, so for these i'm believeing of going back to traktor and picking up a used controller..

my question being, if i pick up a used vci100 can i use my sl2 in traktor to output through just one channel? and will the output be loud enough? (the sl2 will be going directly into the system / no inline mixer)

thanks in advance