Hopefully someone can help me with this. It's not very bad, but I noticed a 60hz. hum from my turntable last night through the headphones with the volume up a bit. I only noticed after the side of the Lp. had stopped and I returned the tone arm to it's rest. This an Audio-Technica PL120 TT and I've noted from reviews online that this is an issue with these tables, but I couldn't find a solution. It has a built-in phono preamp which I don't use and leave off since it's connected to my receiver's phono stage. I tried flipping that on to check the effect and it made it buzz even louder (not surprising). I think the noise is getting in through the crappy IC's which are hard wired inside. Evidently, the motor has it's own power supply in these and it doesn't have the traditional ground wire to connect to a chassis. I went to Rat Shack today and bought an inline noise isolator which also only made it worse. Every component in my rig is plugged into a Belkin PF30 power conditioner and plugged into the same 15amp wall plug. I doubt a cheater plug is going to help. Any suggestions?