Hi, I am new to modular and my first purchase has been an Arturia RackBrute 6U housing. Even with just a single module installed the unit is creating an annoying 1.5kHz tone, which is clearly apparent when monitoring and in audio recordings. I suspect that this is being generated by the Arturia power supply unit and must surely be a hardware fault. Has anyone else come across this? I have seen one or two comments on the Arturia forum about this and wondered if it was a well known problem in this community. Thanks!