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Akasa Viper vs Scythe GentleTyphoon AP-14/AP-15

post #1 of 8
Thread Starter 
I'm looking for a quieter fan to replace my H50's stock fan. I've seen the Scythe GT AP-14 and AP-15 models recommended quite frequently for their high static pressure and low noise. I've also seen that the Akasa Viper has gotten favorable reviews. Which would be better for my purposes? Which is a quiet fan in terms of noise?
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post #2 of 8
The gentle typhoon comes out quieter.
Quote:
The tests were carried out in an anechoic chamber.
The acoustic noise was measured using a calibrated B&K sound level meter
Quote:
If the sound level meter is placed 0.3m from the fan and if the fans operate around 1500rpm, the SGT is about 10dBA lower than the Titan Fenrir's stock fan and the Akasa Viper.

http://forums.aria.co.uk/archive/index.php/t-23797.html
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post #3 of 8
Gentle typhoons are one of the best ( if not the best ) fans for a radiator.

All the watercoolers here at OCN can vouch for that
    
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post #4 of 8
I have both of these in my case and I don't see much difference until you're wide open in terms of speed. The viper is rated for much higher cfm and static pressure. I don't hear much difference in sound until the cpu is at full load and then its not a huge difference, but the vipers are louder, but at a different frequency. However. I think the mounting system for the ap-15s in my case has a lot to do with it as the aluminum is resonating. The vipers in push pull on the heatsink dont have that problem. Ill bet that if you had both fans outputting the same cfm, you'd be hard pressed to see or hear the difference. The viper is supposed to have less of a dead spot in the middle. I may test my ap-15s on my heatsink this weekend. If I do, i'll post. Don't forget, the vipers are pwm fans and the AP-15 is not.
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post #5 of 8
Thread Starter 
Thanks for the info. Rep+ to all. Also, is the Akasa Apache basically a lower RPM version of the Viper? Would all of the fans mentioned still be quieter than the H50's stock fan?
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post #6 of 8
Quote:
Originally Posted by kz26;12394152 
Would all of the fans mentioned still be quieter than the H50's stock fan?

I don't know about apache fans but with Gentle Typhoons it depends on the model. The AP-15 (1850 rpm) maxes out at 28db, the AP-14 (1450 rpm) maxes out at 21db according to their specs. Both are classified as quiet and you won't hear it if your case has good acoustics silence-wise.
    
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post #7 of 8
Quote:
Originally Posted by kz26;12394152 
Thanks for the info. Rep+ to all. Also, is the Akasa Apache basically a lower RPM version of the Viper? Would all of the fans mentioned still be quieter than the H50's stock fan?

Based on specs, it has like 56 CFM vs. 83 of the Viper. The db is 16 vs 29 on the Viper. I don't know anything about the H50 stock fan except that people complain about the sound.
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post #8 of 8
Gentle Typhoon specs are what Nidec sends to industry. Viper specs are what Akasa sends to consumers. Industrial customers can test their fans. We consumers have a hard time doing so.

I tested an Apache (see item 1 in my sig). I said at the time I thought the Viper (which came later) would be a better fan to try. Also, the Apache has a nice sound - not as noisy as it SPL would suggest.
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