My Nutone IMA-516 system produces high noise relative to the speaker volume output. At first I didn't have the ground connected to the amplifier, but even after I connected the ground I still have high noise relative to the amplified sound. You pract

ically need to be right in front of the speaker to hear anything. Maximizing amplification or raising speaker volume just increased the hum. How can I get rid of the hum? My Nutone IMA-516 system produces high noise relative to the speaker volume output. At first I didn't have the ground connected to the amplifier, but even after I connected the ground I still have high noise relative to the amplified sound. You practically need to be right in front of the speaker to hear anything. Maximizing amplification or raising speaker volume just increased the hum. How can I get rid of the hum?

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