You mention that even when the Cable is unplugged from the Tonearm, that noise/hum still exists? I gather you mean that no cable at all is going to any phono stage, yet you still get hum/noise?
If so, then that seems to eliminate the Phono Cable.
This problem seems to exist for some no matter how much they invest in a phono stage and/or Cables. One of my good friends (recently deceased) using a Clearudio Master Reference Table, Lyra Titan Cartridge could not get away from RFI/EMI until he bought a Battery Powered Phono Stage (The Sutherland PhD)
On his recommendations, I bought the PhD Phono myself, and while perhaps not the very last word in sonics compared to some other class-a rated Stages (well some say this, others don't), one thing I'll say about my PhD that it is absolutely dead quiet, even with a .35mv Benz Ruby 3, and running at 60db gain.
Don't know if line conditioner would help any of these phono stages you've tried, but I reckon at this point one would be willing to try anything to get away from this malady. I'm almost getting the impression that your difficulties lie with your electric service, rather than an airborne problem. Really hope you get this solved. Mark
If so, then that seems to eliminate the Phono Cable.
This problem seems to exist for some no matter how much they invest in a phono stage and/or Cables. One of my good friends (recently deceased) using a Clearudio Master Reference Table, Lyra Titan Cartridge could not get away from RFI/EMI until he bought a Battery Powered Phono Stage (The Sutherland PhD)
On his recommendations, I bought the PhD Phono myself, and while perhaps not the very last word in sonics compared to some other class-a rated Stages (well some say this, others don't), one thing I'll say about my PhD that it is absolutely dead quiet, even with a .35mv Benz Ruby 3, and running at 60db gain.
Don't know if line conditioner would help any of these phono stages you've tried, but I reckon at this point one would be willing to try anything to get away from this malady. I'm almost getting the impression that your difficulties lie with your electric service, rather than an airborne problem. Really hope you get this solved. Mark