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Please help me eliminate my phono section hum

I have a Well Tempered Classic V turntable, with the carbon-fiber arm, using with an Audio-Technica ATML170 high output moving magnet cartrige, going to a Balanced Audio Tech. P5 tube phono stage, then passing this signal to a Reference Line passive preamp.

The connections from the phono stage to the passive are XLR, the phono stage is plugged into my PS Audio P300 AC conditioner,, which has it's own completely isolated AC line. There are no florescent lights in the room.

I have TONS of gain, but cannot eliminate a persistant tizzy buzz (it's not the cheap wine either!)

The turntable has a ground line from the RCA output block going to earth ground as does the phono stage and even the passive pre.

I would like to upgrade to a high output MC cartridge but am afraid it would only exacerbate the problem.

Help! Anyone?
denf

Showing 2 responses by denf

denf OP
241 posts
 
1.)Comes through my mid/tweet
2.)Cannot hear it when volume is all the way down
3.)Has always been present
4.)More like a "buzz"

It is continuous. No variation. I was able to attenuate it to some degree by using an Aural Thrills "active" RCA cable from the turntable out to the phono stage, so I suspect it is somehow turntable/arm/cartridge related??

thanks
denf OP
241 posts
 
Thanks guys - and I will try your recommendation Dogpile. So far though, it seems like it might be the tonearm and/or RCA block at the table itself? Anyone ever heard of a buzz coming from defective tonearm wire??

I'll keep looking...
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