Daniel from ReviewStash has taken a look at the impressive Noctua NF-P14 FLX fan.
"If you're willing to shell out the money for the NF-P14 FLX, you definitely will not be disappointed by the performance it offers. It is absolutely ideal for a large case that needs to be kept both cool and quiet. Considering you get an extra two or so degrees Celsius of headroom out of your cooling system and a respectable drop in decibel rating, it's incredibly difficult to underestimate the usefulness of this fan. While similar products exist, none match the specifications that Noctua has delivered."
Daniel Levy - ReviewStash
Noctua NF-P14 FLX fan examined by ReviewStash - Full Article.