Making a mix in Ableton

Hi there,



I just have a question about making a DJ mix in ableton. When I import track, most of the time I have to turn them down to keep them out of the reds, but then when I’m not my mix, and I make sure my mix is sitting just under 0db, I find when I compare the volume of the new mix to the original volume of some of the tracks, it has gone down quite a bit. This confuses me. I’m not sure how to get the tracks back to its original level without being way in the reds?



Thanks,



JB