[SOLVED] DJM-850 USB Sound Card PRE-Fader audio signal

on the DJM-850 (or any other mixer) Is there a way to connect something (a device) on the CD/Line input then route the PRE-Fader audio signal  of that device into say Ableton (via USB) then add some effects or something and output the signal to the same channel to then use the Fader on the mixer ???