Question about Bbe Fjb 200x Phono Preamp

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Just bought it today I grounded the tt to the preamp and have a hum coming thru my speakers

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First thing is to verify that ALL your interconnected equipment such as TT, preamp, Amplifiers ALL are powered from the same receptacle or power source. A ground loop might exist if they are on separate circuits in the room.

Second is the quality of cables must be good. Some have very poor shielding.

Posted on Apr 02, 2011

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Multiple grounding is often the reason for a hum loop. This is where an audio peripheral is not only grounded through the supply cable but is also grounded through the screened audio lead.

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Hi-fi officianados have a number of tricks to deal with hum loops and google could lead you to these.

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