What causes the music to hum and distort when playing a vinyl record


I have a pro ject new turntable in a stand in the corner of my room connected to my Yamaha 2080 also connected to my anthem mc20. Cables are new tributaries and ground wire connected. Sounds good but when I turn it up halfway a humm starts loud and starts to break up the sound and I have to run to turn it down. Is there any direction I should look at first as to what is causing this. Thanks 
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Showing 1 response by newbee

Counter intuitive perhaps, but try disconnecting the ground wire. Next make sure your 'wires' are not routed near any power supplies or transformers.