Still trying to figure this one out. While playing a gig recently with 2 tech 1200s and my Traktor Kontrol Z2, the right or B turntable was producing garbled audio part way through the tracks. Almost sounded like it was under water. It only happened on the right deck. I swapped needles, swapped timecode records and it only happened to the one deck. It got so bad at one point that I was having tracking issues and couldn't bring the tracks in on time because it kept skipping off the beginning of the song. It did it off and on for a couple hours and then stopped. I haven't been able to recreate the issue and that's troublesome because I can't afford to have it happen again.