Hum...ZYX with Tom Evans Groove Need suggestions

try moving the groove around a bit. it might be catching inteference from the power supply of another component. this happened to my groove plus and my zyx universe. try moving around the interconnects as well.

have you troubleshot the rest of your system? swap interconnects to see if the left side still has more hum. the ground from your tonearm should ground to the ground lug on the back of the groove. doublecheck all connections, from the catridge on up the chain.. etc. the cartridge/phono pre combo you have are top notch. there is an issue elsewhere, or you have a defective component.

can you move your amps further away from the rack?

that is great. congratulations. i wonder what generation Lithos power filtering you have in your unit. you can email tom evans with the serial number and he can tell you.