Thank you, Lawrence, for presenting such a well-organized review and keeping the fan manufacturers honest! In your experience, do the "static pressure" fans cope better than typical fans when attached to dense radiators?
Also, it would be really neat if the comparison table included a column for your overall noise quality grade. For example, the table makes the Noiseblocker B12-2 look exceptional, but your review comments
say otherwise. I thought that being able to compare the fans' frequency spectrums might give readers an at-a-glance quality comparison tool, but they aren't so easy to read for unpracticed eyes, and aren't as useful as your listening notes.
I made a demo page to compare frequency spectrums: http://output.jsbin.com/nikero
(click a fan name to view the spectrum)