Rega hum

No, not added recently (8 yrs ago it was added). I have had the TT now for 1 yr and this was this first issue (other than location issue when firt purchased) I have had with hum. I am looking for a dead silent background. Hum does not occur with any other sources (CD & iPod).

All RCAs were tight - no lamp on nearby but I do have a ceiling light that is on a dimmer switch. Light was not on though during play. By internal ground I mean that is the way the Regas are designed. There is an internal ground wire within the tonearm and I believed grounded to one of the RCAs. I was told by the Rega US distrubutor that there will be some hum until the coils in the cartridge are put to use (when stylus sets down on LP). Maybe I am being too anal about my vinyl rig. He also suggested unplugging TT PSU from power conditioner and plugging directly into the wall. I don't like that idea.

How would I externally ground a rega table?

Any other ideas? I have plugged the TT PSU into the wall outlet - no change, still hums. I am looking for dead silence when phono is selected on my pre (Rotel RC-1090) and no LP playing. This is when I notice the hum the most. I am at my wits end. Am I asking too much for silence through the phono stage? I am using a MM cartridge.

Headsnappin

My Pre is one shelf above my power amp - a Rotel RB-1092 - about 2.5" from top of power amp to bottom of pre separated by .75" of oak.

Arch7,
If I were to upgrade my power cord should I upgrade the pre or the amp power cord? The power cord to my TT PSU is not detachable.

Thanks to all who have submitted their opinion.

It definitely has to do with the cartridge/phono section. With all power off accept the pre/amp and phono chosen, I get the hum when volume is turned up. I move the arm over and place stylus on an LP (not running), the hum is still there (thought activating the magnets in the cartridge might stop hum). I'll try placing the DVR cable box between amp & pre.

I am pretty sure the hum is caused by EMI since I get it with table power off - just not sure which source is the culprit right now. All my equipment is plugged into a Rotel RLC-1040 power conditioner. With table off, amp & pre on, when I turn volume to 50% I can hear teh hum through each speaker which tells me the cartridge is picking up some interference.

Which power cord should I upgrade? The Pre? My TT has its own PSU. I did find that if I did not have the TT PSU plugged into the swithced outlet on my pre the hum diminished somewhat. It (TT PSU) is now plugged directly into a wall outlet. This may be as good as it gets since I can not locate my equipment from ther current locale.