As stated in the title already bothers me about the PSU actually only the cruel buzzing that this also is still load-dependent. Once I have a new plastic spray can, I'm going to try, if we can use to bring to silence the concert. At first for me was still problematic to find out what the PSU polarity needed because no guidance was added, there was not even a package to it was just sent in bubble wrap. Whether that is now product or dealer specifically, I can not say I write it but prefer to do so. The tension I have not measured, but the board is running smoothly!
