David, i've never told that the hum is from the table. There shouldn't be any grounding problems with RB300 either except when there are some manufacturing deffects.
The first party to call should be Immedia to report a problem with the cartridge.
BTW do you connect this setup the first time or you used different cartridges prior?
The first party to call should be Immedia to report a problem with the cartridge.
BTW do you connect this setup the first time or you used different cartridges prior?