Neumann U67 noise issues
I have a Neumann U67, but it's got a weird background noise after warming up.. It sounds a bit like waves or a little fire in the distance...
After cleaning the tuschel connectors as good as possible without any change, I now suspect it has something to do with the voltage switch inside the PSU box. Right now it's set to 220V, but there's the option of switching to 240V inside the box. Here in Denmark we have 230V. Would changing the voltage switch to 240V make a difference you think??