Radio Hum


I just hooked up a pair of conrad-johnson Premier 8A monoblocks to a c-j PV-11 preamp, and I have a wicked hum, even a zero volume, in only the right channel, and it is picking up a radio station. I have changed and moved speaker wires and interconnects to no avail, though it does get better and worse with movement. It will not happen in the other channel. What am I missing? What else should I check? Is something wrong with my preamp, cables, power supply???

Thanks, Brian.
bkrpdx

Showing 1 response by tubes108

Hi Brian. The radio signal you receive has zip to do with your tuner. Something in your system is acting as an antenna.

Wondering if there are unused inputs on your preamp? If so I'd try using shorting plugs on those inputs. Just might be a cure.

Here's a picture of a shorting plug and also a place to purchase them.
Shorting plugs