Originally Posted by AliveNoMore
Alphacool and Phobya cannot be found here, and I'm not going through all the additional costs, time and effort to import.
Out of the more well known and renowned fan brands I can get only Blacknoise (Noiseblocker) and Noctua.
The only Noisblocker that fits my requirements, is available and is sort of within my budget and (~18 USD) is BlackSilentPRO PLPS.
There is Noctua NF-S12B Redux PWM also at ~18 USD and Noctua NF-P12 PWM at ~21 USD.
I realize that the Notcua NF-P12 is good but is it really that much better than the Arctic F12, as it is basically twice the price.
If you are putting it in front of the HDD cage for example you may need some static pressure fans like the P12, while if you are mounting them in exhaust position and less obstructed fan mounts then any regular air cooling fan will work.
For the record, I have some F12a's laying around that I could test up aginst some F12's I have to see the difference in noise level, but I don't have the experience with the 12b.
If you can get them then I know the Cooler Master Silencio FP12 is relatively good static pressure fans that cost quite a bit less than most others in that category.
Really though, for me at least when youi want real silence I figured out that my PSU was actually the noisy thing in my case and not the cooling fans. So it would be good to find out what components actually make noise before adding more fans that you want to be dead silent.
Something to keep in mind though is that usually 14cm fans are a bit more quiet than their 12cm counterparts since you can run them at lower speeds while moving the same air. Just something to consider at least since the case has mounts for them in the top, bottom side and rear.
Also low RPM fans are tha way to go for silence, especially since you want to run them below 1000rpm anywways. I have had cehap fan sbe very quiet simply beacuse I ran them at such a low RPM that they barely moved any air. So for me anyways, I would go back to the first post and look at the noise/performance graph and use that as a guide to selecting fans. It is hard to recommend anything when I'm not sure what fans are available localy for you and especially considering the pricing is different.
I'll post a few links here that you are by no means obligated to follow, but they should at the very least show you some other fan roundups as well for comparison. What you should look for is basically the fan that performs best compared to the noise level (which I assume you know), and while I can reccomend fans for you all day, I really don't know what is available and the pricing poiint in your respective country. I assume you know how to proceed with looking for fans? look at the best performing one compared to noise level (lowest numbers) and if it's not available or not in budget, then look at number 2 and proceed like that.
Then there is ofcourse this thread, but I hope you have checked out the first page allready before asking.