I recently purchased a turntable and plugged the jacks into the phono inputs in my HK receiver. When I turned up the volume I distinct hum began and increased to a loud hum, even without any further volume increase. I moved the Polk bookshelf speaker at least 4 feet away but it still hummed when I turned up the volume.
The turntable has a built in pre-amp. Should I connect to an input other than the phono input on my receiver? I noticed one review said not to use phono inputs if you have a preamp on your turntable.