A feature that is even accomplished at 500 RPM, higher than close alternatives. I do wonder what would be the actual dBA readings at lower RPMs? In fact a detailed low dBA/rmps, airflow measurement comparison is completely missing from your study.
What if some of us use ie. Seasonic Fanless PSU, noiseless SSD and then want the lowest noise CPU/case fan... possibly to work on just exceptional peaks, where obviously it should go unnoticed?
I work with sound and aim for a fanless -and still powerful- set up, which -for safety- will need a fan somewhere. Thus, I'd like to see that indeep review definitely discriminating fan units below 33 dBA, and hopefully below 20 or lower dBA measurements.
Thanks for what it's done already.