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Static Pressure Fans better at Airflow with Dust Filter? - Page 4

post #31 of 77
About best choice, perhaps try to find a recording of the fans. The specs about noise on paper are all fine and good, but sometimes there's just an annoying nature to the sound. I'm thinking of things like some sort of whine or perhaps ticking. You won't see this in the decibel numbers. I once stumbled upon a page with a whole bunch of short ten second recording of fans, easy to browse with start/stop button on a tiny flash object for each fan. I tried remembering where I've seen this but really can't.
post #32 of 77
I have 2 noctua focused flow SP 120mm case fans as intake and they are pulling air through the filter,
I have held my hand over the exhaust of the fans and then held the filter over the intake of the fans and then moved the filter away and I really
can't tell the difference if the filter was removed, then I tried 2 corsair AF fans with the same test and as
soon as I put the filter in front of the af fans the airflow dropped lots, and the fans got louder.
so anyway the SP fans work great for me even with the filter on the intake side of the fans.
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Old X58
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post #33 of 77
Thread Starter 
Good news. Looks like most people are thinking the same as me. Noctuas are actually out of the question. I despise their colour scheme and i am also an aesthetics man.
With recordings, you cant really replicate the same volume of noise. I watched a bunch of gentle typhoon "sound tests" and in the videos they were so loud. I still bit the bullet and got them and in person, their much quieter than the recordings.

Ill probably stay with the GT's and get more of them. Unless can persuade me otherwise of course!
post #34 of 77
post #35 of 77
Thread Starter 
Quote:
Originally Posted by doyll View Post

Here are some cooler sound clips at idle and full speed.
http://www.hardwaremax.net/reviews/kuehler/420-test-thermalright-silver-arrow-sb-e.html?start=5
No fans im interested in frown.gif
post #36 of 77
That's some 120mm fan test on that page, right column is all fans on reduced speed and normalized to same cooling according to the description (on some CPU cooler? idk):

http://www.hardwaremax.net/reviews/luefter/625-test-bitfenix-spectre-und-spectre-pro-120-mm-luefter.html?showall=&start=5
post #37 of 77
Thread Starter 
Yeah, well, im fine with my GTs so ill stick with them.
Was hoping maybe some people had the SP120's and GTs and could compare but it doesnt seem like people do!
post #38 of 77
Quote:
Originally Posted by nleksan View Post

... Restriction was 60 percent using a cut off piece of grill from an actual case, and the fans sealed to the grill to prevent any other means of air getting to the fans ...

I say put them to the sword!


For the forensic interest, what pattern was that 60% destroying grill?
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post #39 of 77
The SP120 Performance Edition is significantly more powerful than the AP15, but a bit louder. The SP1 Quiet Edition is really quitesilent, but the name is a misnomer as they have a pathetic amount of pressure/airflow.

Personally I think the GT's are ridiculously overhyped, because you can easily get fans that way outperform them or are much quieter. What the GT AP15's are is an excellent, if overpriced, compromise in terms of performance to noise.

However, if their performance is enough for what you need, and you find the volume acceptable and tone pleasing, then by all means they are a decent fan.
   
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post #40 of 77
Same pattern with slightly smaller perforations.

The thing that kills the flow, and makes so much noise, is that the surface is flat. With a wire grill, you have a round surface, and air can easily flow around the wires. With the flat surface, every little spot between holes develops little turbulent points.
   
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2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
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WD10EALX 1TB HDD Seagate Barracuda 7200.14 1TB WD3200AAKS 320GB HDD WD5000HHTZ 10krpm 500GB VelociRaptor 
Optical DriveCoolingCoolingCooling
LG/Hitachi Slim DVD-R/W Custom MB-Backside VRM-sinks (Copper) 3x NZXT RF-FX140LB 1-2krpm 98.3CFM Case Fans 2x Corsair SP120-PE Case Fans 
CoolingCoolingCoolingCooling
Heatkiller GTX680 "Hole Edition" Block + Backplate XSPC Single-Bay Res (Single 5.25 bay) EK Multioption Res X2 - Advanced 150 DD "Fill-Port Res" + Fill-Port Fitting (Red) 
CoolingCoolingCoolingCooling
2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
CoolingCoolingCoolingOS
4x Koolance 120x25mm 2600rpm Fans Comp/Rotary Fittings (BP/XSPC/Monsoon) Primoflex Pro LRT - White (1/2x3/4) Windows 7 Professional 64bit  
MonitorMonitorMonitorMonitor
Dell P2210Hb 21.5" 1920x1080p Viewsonic VA2012WB 20.1" LCD 1680x1050 Dell U3014 Eizo 27" 1440p 10bit RGB-LED Backlit AH-IPS Panel 
MonitorKeyboardPowerCase
55" LG HDTV (their top 2014 model) Ducky Mechanical (Browns) NZXT HALE90 850W + 8 blown-up AX1200/i's NZXT Switch 810 (White) 
MouseMouse PadAudioAudio
R.A.T.3 + MX510 My Desk GRADO RS1i Headphones Grado PS1000 Headphones 
OtherOtherOtherOther
Bitfenix Hydra Pro Fan Controller 5ch 30W/ch Bitfenix Alchemy Individually-Sleeved Extension... NZXT Individually-Sleeved Front Panel Wires (Bl... Phobya Sleeved 1x3pin-to-4x3pin Fan Splitter 
OtherOtherOther
Sleeved Wires w Paracord myself (no Heatshrink) Custom Front and Top Panels w HexxMesh *In Prog... Working on Custom Pedestal Prototype 
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