I’m using 2 H9’s a couple of years now. Last week one of the H9’s started to rattle. After trying a couple of things a thought the power supply didn’t give enough juice (I have a Strymon Zuma with oa a Gigrig Atom 3). After powering the H9 and G3 to its original adapters) the rattle became even worse. Now I discovered it has something to do with the MIDI In and Thru.
Anyone any idea what the problem could be?