On an unrelated note, have you noticed that it emits a -10V 90ms long pulse from the output connector when you first power it on? Mine does that. Very annoying! Surprised I can't find anything about this bug on the internet. My firmware version is 1.11
I have the same ugly negative pulse on startup. You would think they would mute the output while this occurs.
Now that I am aware of this, I will ensure that I am not hooked to anything that can be harmed by this pulse (I have the same firmware version).
I was looking for a new fan, this one is far too noisy.