Right channel output is louder
I've recently upgraded my turntable, pre amp and cartridges. Today I have an Audio Technica AT LP 120 turntable, shure m44-7 & white label cartridges, and use a Gli pmx 9000 as my pre amp. I've had the issue of the right channel being louder. It is not a speaker issue because I'm monitored the output levels on both my mpc 3000 and digital mixer. I've tested multiple records and right channel dominates. I've tried both cartridges as well as adjusting tracking weight and anti skate and still have the same issue. I've switched my turntable to line and directly connected it to my monitoring source (ignoring the PMX 9000 pre amp) and the same results. I got this turntable a few weeks ago. Weird thing is before I upgraded my turntable I had a Numark TTUSB and had the same results. At this point I have no idea what this means or what to do. I'm open to suggestions. Thanks for your time.