Well, with a little help from Joe I figured out what the problem is. Joe tld me to wrap tape around the magnet and basket of the woofer to see if it dampens the noise. It didn't work but I removed the tape and tried moving the magnet by hand and that was it. I could hear the magnet moving on its mounting, very, very slightly. I then knocked on the back of the magnet and could hear the sound of a slight vibration. I tried this on the other speaker and could hear and feel the exact same thing. I'll try calling Joe on Monday.