Additional context: several months ago, Alphacool claimed (Nitter) they had created basically the best fan in the world, by an enormous margin.
It seems like (as many people expected), the original tests by Igor’s Lab probably aren’t representative of reality.
I can imagine that in terms of acoustics, they are very good when it comes to vibrations. So maybe they are (even) better in a case. When it comes to airflow and pressure, they are very clearly not tho