I have my BeoLab 6000 speakers connected to a non-B&O system so have to use the phono sockets (LINE).
When plugged into power with speaker wire plugged into the phono sockets the Green light comes and stays on and I get serious Hum. I have plugged the power through an Ebtech Hum X and it makes no difference. Removing the speaker wire from the phono socket and the hum disappears and the small light goes to Red.
I have taken a speaker to a far part of the house and plugged it in with no other components to reduce any possible interference and it makes no difference.
Does anyone have any suggestions ?