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Low level Hum in Phono Signal Path

There is a distinct low level hum noise evident through my speakers when the phono mode is on. Can't be heard from the seating area but can be heard when your ear is in front of the speaker, either side. This noise is also dependent on the volume; the higher the volume the louder the noise. What is causing this noise and can it be remedied. (Equipment involved: BAT PK 5 phono preamp, Transrotor turntable with Benz Micro Ruby 3H cartridge)
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Showing 1 response by ebuzz

ebuzz
104 posts
 
I am also hearing a low level hum, but mine happens as soon as I connect any device. I've tried some of the fixs I've seen here: started by disconnecting the balanced inputs to the power amp (Threshold T-100) and there is no hum, so that means its not from the speakers.
Then I disconnected every component. As soon as I connect any device, (EAR 834P; tube CD plyer no matter what) I get the hum. I've tried cheater plugs, ground wires. Can't figure it out.
Any ideas?
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