You can run a wire from your preamp. either the ground post or one of the screws holding the case, to the center screw in your AC receptacle. Sometimes this helps, sometimes not.
Can I ground my preamp?
I have monoblocs each w/their own grounded cord and a preamp w/o a grounded cord. The problem is that I'm getting a slight ground hum from each amp. The amp manual says if this happens to use a cheater plug on the amps and to ground "at least one other component." Is it possible to ground my preamp, and if so how? Many thanks for any advice.
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If the preamp was designed with double insulated power wiring connecting an equipment ground to the chassis could degrade the sonics of the preamp. I would first check each amp for the proper AC polarity orientation. http://www.boundforsound.com/tweak.htm >http://www.gcaudio.com/resources/howtos/acpolarity.html >http://www.audioasylum.com/audio/general/messages/449743.html If each amp is fed from its own dedicated circuit I would also make sure the AC polarity is correct at the receptacle . |
- 22 posts total