I was having a periodic hum in the torroid transformer in my nad power amp. I did some researching that pointed to DC in the power line causing the hum. I found that the DC was being caused by the ...

Sometimes, when you plug an audio line from a desktop computer into a stereo receiver or amplifier, an annoying hum comes through the speakers along with the music. You stop the music and the hum is ...

I have two seperate power amplifiers with 3 prong chords. When I connect the amp to the speakers I hear a noticable hum/buzz that comes through although when I play music at low volumes, its not ...