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Turntable hum problem after demagnetizing

I borrowed a friend's Benz Aesthetix demagnetizer to try out. (Oracle Delphi V, Wilson Benesch ACT 0.5, Benz LP-S, Cardas Golden Cross phono cable, Pass Labs XONO phono preamp). After using it, I now have a huge hum that wasn't there before. There also is static if I clean a record with my carbon fiber brush or touch it to the stylus. Also when I touch the tonearm the hum increases. What is going on??? Any help would be appreciated.
terrytam99
dover
2,247 posts
 
Try this - get a piece of wire, strip both ends and connect one end to the grounding post on your phono stage. Then try touching the other end to tonearm, turntable subchassis, turntable spindle and turntable motor. As you go through these check for hum. I have on the odd occasion managed to eliminate hum from earthing various turnable components.
stringreen's avatar
stringreen
6,470 posts
 
Call Garth Leerer at Musical Surroundings. I have a Benz LP-S and asked him if it was ok to use my Fluxbuster. He said that the Benz Aesthetics is far better. Your Benz doesnn't need to be done that often because it has a non magnetic Ruby polepiece. If the Aesthetics screwed up the cartridge, Garth would most likely repair or replace it.
terrytam99 OP
8 posts
 
So, I took my whole rig into the local high end audio store and the tech checked it over with an ohm meter. He did finally isolate it to the cartridge. Ouch.....
Also a careless error of mine - the hum is actually only in the right channel, in my panic, I thought it was both. I've contacted Garth from Musical Surroundings, and I'll see what he says.
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