more than a hum, its sort of a buzz-umble, sort of what you get when the grounding wire is out. Ordinarily it is something I would not notice, when the platter is idle, and the volume on the amp is around 10 o'clock on my Sansui G-99X (160W @ 8ohm). Now when I touch the wire or the DIN connector coming out of the tone arm the hum goes away, which makes me think its a grounding issue. It also goes away when I touch the base of the tonearm mount or the tonearm itself. Now, is this typical? If Yes, then would running a piece of wire from the outside of the DIN connector to the ground lug help? If this is not typical? is there something wrong with my tonearm wire DIN connector?