Been having this problem for a bit. One of my turntables plays noticeably quieter than the other one does. I've tried switching the tables around so that they were on opposite channels than before, but the same table still plays quieter, hence mixer issues can be ruled out. (Yes, both channels were at exactly the same levels for gain, high, mid & low, just to state that before I get asked.) I just got new stylii (styluses?) so the needle shouldn't be the problem either. I tried cleaning the tonearm connections with an eraser, but that didn't seem to help either. Anyone got a clue what could be wrong, and how I could fix it?