I have the base ultra, and am in the US and the fan noise is very noticeable. I will return this machine, which will be a first for an apple computer in 25 years for me. I would love to hear the noise coming from the people who say it's silent, I don't know if I just got a "good" one, but it is not coil noise, it is a blower, constantly blowing, sounds like a have a small usb fan on my desk, it never ramps up, or down, it would be tolerable if I were processing 4k video, but I'm just web browsing and it's loud. Granted I work in a quiet environment, so if you have a lot of white noise, or background noise, you probably wouldn't hear it.
-----