I have purchased a Beogram 1200, and when I want to listen to a vinyl record, there is an electric humming sound so loud I can barely hear the record. The Beogram has a DIN 5 signal out cable, which I need to run through a Din5 / Cinch adapter cable so I can attach it to a Cambridge Audio pre-amp. From the pre-amp, the signal runs via a Cinch cable to the Beosund Essence MK2 via LineIn / Aux. I noticed that the Beogram's power cable has a Type-C power plug, meaning it has only two round pins without a third one for grounding. Also, there seems not to be a separate grounding cable I could attach to the pre-amps grounding wheel. I imagine that B&O did not consider this to be necessary at the time because Pin 3 of the DIN 5 plug provides grounding. I read this article on how to ground a turntable: Thank you for your feedback! Stefan