Arctic Cooling fans are known as one of the quietest fans out there (i've used several myself), and your P14 is no different,
specs:
https://www.arctic.de/en/P14/ACFAN00123A
It has audible noise up to 0.3 Sone, which = 10.64 dB(A). <- That's extremely quiet, about half of whisper level, ~17dB(A).
In the fan world, anything below 20 dB(A) is considered as silent. 20 - 30 dB(A) is audible, 30 - 40 dB(A) is loud and anything over 40 dB(A) is very loud.
Those Arctic Cooling fans that i used, F12, i literally had to check if the fan is spinning after installation, since i couldn't hear it at all.
😆
Nowadays, i'm using Corsair ML Pro LED series fans, for better performance, far longer lifespan and nicer eyecandy, where my fans, have audible level of 16-37 dB(A). But i'm keeping them ~1100 RPM, making them borderline of audible level.
Now, what makes the most audible noise, besides the fan itself, is airflow through restrictions (radiator, case grille). And for that, it doesn't matter which fan you use.
Fan controller is a device that gives you manual (analog) control over fan RPM. And it also gives you control of individual fans. Same can be achieved when you plug your fans into MoBo, where from BIOS, you also have manual (but digital) control over each fan header.
Most people are fine with BIOS control over the fans, since they can put in the custom fan curve (based on PC temps) and BIOS takes care the rest. But other folks (like me), prefer to have more direct control over the fans, and thus, get a fan controller (here, do not mix up fan hub with fan controller, those are different devices).
Fan hub is a device that expands single fan header into multiple ones, where all fans run in sync and individual fan control is impossible. E.g Deepcool FH-10 (
specs).
Fan controllers that i have in use in my builds, from left to right;
Skylake - Thermaltake Commander F6 RGB (6 fan support)
Haswell - NZXT Sentry 3 (5 fan support)
AMD - Aerocool X-Vision (5 fan support)
(PCs full specs + more pics in my sig)
Fan controller is a neat piece of hardware.