Reply to Problem struck, Allen Heath Xone: db4 and DJM 800, help

Hello there guys, so problems have occurred, I have this upcoming gig and guys want to use theirs DJM 800 and CDJ's, I dont like CDJ's and obviously DJM 800 and they kinda fussed about when its my time to play, you have to plug out leads from DJm 800 and plug it in into DB4, so, my question is, how to avoid that quiet gap?