Anyone using Be Quiet Silent Wings 2 140mm fans ?

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I'm toying with the idea of changing the fans on my 650D from a 2 x 200mm front and top setup to a 2 x 140mm setup using the Be Quiet Silent Wings 2 140mm fans.

Is anyone using these, how silent would you say they are and do they have good air flow ? To change 5 fans on the case including the rear exhaust it would be around £100 so obviously it would need to be worth the change.
 
I have 3 of them.

Best fans out there if you are really picky with noise. 2 of them have absolute zero bearing noise even with your ear right against it, one does have some minor noise but its not really noticeable.

At full speed they aren't silent, as any 140mm fan running at 1,000rpm is going to be moving a lot of air. The noise/airflow ratio is probably the best out there though. They come with 5v and 7v adapters so its easy to reduce the speed if you want.

Some places really overcharge on these fans, I wouldn't say spending 100 pounds on 5 of them is worth it no matter how good they are.
 
I have 3 of them.

Best fans out there if you are really picky with noise. 2 of them have absolute zero bearing noise even with your ear right against it, one does have some minor noise but its not really noticeable.

At full speed they aren't silent, as any 140mm fan running at 1,000rpm is going to be moving a lot of air. The noise/airflow ratio is probably the best out there though. They come with 5v and 7v adapters so its easy to reduce the speed if you want.

Some places really overcharge on these fans, I wouldn't say spending 100 pounds on 5 of them is worth it no matter how good they are.

Thats the sort of feedback i was after, its appreciated.

I agree that spending £100 on 5 fans is a lot, my plan would be to replace the top 200mm fan with 2 of the Be Quiet 140mm fans and see how it goes, if they turn out to be very good i'd look into getting a couple more.
 
I'm not a mind reader no mention of fan controller in your post.

I never mentioned a fan controller as it didn't have anything to do with the question i was asking, i was asking anyone that was possibly using the Be Quiet 140mm fans if it would be worthwhile changing to these from a 2 x 200mm setup.
 
I have one which i've been using since 2011. It's reasonably quiet up to 800rpm. When it is mounted into a case it gets noisier but that is generally down to the grille size and shape combined with fan blade shape/size. (I have a noctua that makes a right din when fitted to a panel with hexagonal apertures) What lets it down most of all for me is that it flows so little air once a filter is fitted, even when running flat out. I used mine as a front intake in my CM690-II and it had so little flow that it barely moved a piece of A4. I replaced it with a gentle typhoon in the end which i find just as quiet but flows far more air. (some people complain about bearing noise on AP-15's but i haven't had any on mine)
 
Well have used both 2x140mm 1000rpm Prolimatech Blue Vortex which l added to the stock 3x120 1000rpm case fans to improve case air flow. As the stock 3x120mm fans couldn't blow the
skin of a rice pudding and case air flow was very poor in the BitFenix Raider case.

The extra 140mm fans did help, but the 2x 200mm BitFenix Spectre PRO 900rpm, which replaced the stock 120mm and 140mm fans. Even at half speed about 450rpm using the built in
BitFenix Raider case fan controller also vey silent.

They still cooled the case interior far better than the faster stock 120mm and 140mm fans combined. The top roof 200mm fan pulls air into the Raider case which also blows air down the back
as well as the front of the mobo while the front bottom fan also is set to pull air in both have dust filters.

As l have set it up like Silverstone FTO1 case giving positive air pressure both fans pulling air in.

It also helps to say that you were using a fan controller on the 200mm fans in your case to give the full picture regarding case air flow and noise.

Adding one if need be would have given you the option for silence as well as fan speed for case air flow.
 
I have one which i've been using since 2011. It's reasonably quiet up to 800rpm. When it is mounted into a case it gets noisier but that is generally down to the grille size and shape combined with fan blade shape/size. (I have a noctua that makes a right din when fitted to a panel with hexagonal apertures) What lets it down most of all for me is that it flows so little air once a filter is fitted, even when running flat out. I used mine as a front intake in my CM690-II and it had so little flow that it barely moved a piece of A4. I replaced it with a gentle typhoon in the end which i find just as quiet but flows far more air. (some people complain about bearing noise on AP-15's but i haven't had any on mine)

What speed are you running the AP15 at? I have a couple of gentle typhoons (different models) and they all have bearing noise as it uses ball bearings. It might not be noticeable at higher speeds but when your pc is extremely quiet it does stand out. This is what it sounds like http://www.youtube.com/watch?v=17CO1-Wmd8g&t=0m39s

I don't have any airflow issues, at 500rpm my dust filters have no problems getting clogged up with dust :D
 
Mine are run between 700-1000rpm. I reckon the main reason i can't hear any bearing noise is that it is drowned out by the 3 hard disks and the D5 pump amongst other things.
 
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