Rega hum

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.

How far away is the pre from the power? The preamp phono section could be picking up hum from a nearby transformer.

Hello Miner42:
I had a P3 that had the same problem. Rega's response was the same. When the LP is playing there is much less hum. I was using a Jolida JD-9 phone stage (tubes) and I found with an upgraded power cord (LAT International AC-2) the hum was much less. I also noticed that once I gave up on trying to get rid of it, it mostly went away. Perhaps one of those audio mysteries like cable break-in. Once everything settled in it was much better. I'm using a Rega RB1000 arm on an LP12 with a Graham Slee Reflex phone pre and it's dead quiet. Maybe the upgraded cables in the RB1000 make a difference or maybe it's the preamp.

Have a little patience and perhaps it will improve.

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.

Miner42, try moving the pre away from the power, 2.5 inches is not very far, the oak shelf makes no difference. The phono section of the pre is probably right above the power transformer in the amp.