I'm using Traktor Pro with an M-audio FastTrack Pro and an DJM800 as an external mixer. The FastTrack has 4 RCA outs and I'm using 1/2 for deck A, 3/4 for deck B. Output 3/4 gives a super weak signal. The only way i can turn it up is to turn up the mix controls on the front of the FastTrack and it makes outputs 3/4 distorted and awful. I updated my drivers, updated my Traktor to the latest edition and nothing helps. Suggestions?