hey guys, hopefully someone can shed some light on this problem. my friend has a small dj set up, 2 turntables, cd player and fx pad. he just got 2 new citronic turntables, they are running into a behringer dj mixer - when 1 turntable is plugged in with ground cable it works fine, when both are plugged in you can hear it but with the fader at full it is barely audible on both. when you plug the turntables direct into the fx pad they both work fine. does anyone know what the deal is? i tried jumping the ground cables to the two mixers and then just running a ground to 1 channel but still had the same problem.... very strange!! cheers.