Have seen many posts here about Multiplus I and IIs producing a buzzing or humming due to the toroidal transformer. We are considering changing our Phoenix charger / Mastervolt inverter setup to one in order to get the Cerbo integration, but worried about potential noise on our boat.
So, I thought I would start poll to see if “average” users hear a buzz/hum from their Multipluses, or if it’s a defect with only certain units.