I searched a little bit in this section, and didn't come up with too much on fan controllers (at least nothing regarding specific brands). The only thing that stood out at me was from the Star Trek ...
Well, I'm using Noctua fans which are damned well made. I was originally going with Redux fans, but I found them too noisy, so I'm going to return them in favour of NF-S12A PWM which come with a 1:2 ...