Lets not clutch at straws here Ali Yep you are dead right, i stated in post 3 that i was already running a pair of Belkins connected to the balanced output of a P600

Now apart from the fact that fact that the P600 is a regenerator it's output is still balanced & the Belkins work fine, even if they show things are connected incorrectly (which they aren't - it's just that they get confused with balanced mains)

By the way, i'm glad i'm not the only one that wonders