Is it a HO version? 4.5 mv? The Grado HO are known for this but usually at the end of the LP before it starts.I have a minor hum then but it has never been audible during music.Im not familiar with your table but if the motor is not under the platter than forget what I wrote above,its something else.If the motor is below the platter aluminum foil applied under the platter has been reported to eliminate the hum.All I can offer you,sorry...
