Normalized Noise Tests
For these tests, I set the fan to speeds with noise output at the following predefined levels: 20/25/30/35/40/45 dBA. I skip the corresponding tests if the fan under the test cannot reach some noise levels. The speeds shown in the graph below are measured with the fan in a clear space inside my hemi-anechoic chamber without any obstacles. I set these speeds on the Longwin machine, but they slightly change because of the variable conditions that the device applies.
20 dBA Noise Output
- Low speed
- Top airflow
- High static pressure
- Average power consumption
25 dBA Noise Output
- Low speed
- Top airflow
- High static pressure
- Increased power consumption
30 dBA Noise Output
- Low speed
- Top airflow
- Top static pressure
- Increased power consumption
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Kinda surprised you didn’t include the NH-D15. The NF-A14x25 is the successor to the D15. Wouldn’t you want to know how much better it is to the D15? Totally lame review.
Do you understand what you write? You confuse a cooler (D15) with a fan?
As an example: https://postimg.cc/67WQtBP7 (link to https://postimages.org)
It may hurts eyes, sorry š
Brighter colors ā NF-A14x25 G2, 50% PWM
Dimmer ā Silent Wings 4 Pro 140, Mid Range, 50% PWM
It looks like the NF-A14x25 G2 is superior to the SW4 Pro as a fan for the case (Iām guided by the graph from Noctua: https://noctua.at/pub/media/wysiwyg/A14_further_reading_1_Highly_optimised_PQ_curve_for_all_applications.png) and for the radiator of the tower cooler, but loses as a fan for the radiator, which generally corresponds to tests on other resources.
Greetings!
Thank you so much for your reviews, everything is simple, technologically advanced and accurate.
I would like to suggest adding a P/Q Graph for 20, 25 and 30 db to compare fans in the “Normalized Noise Tests” category.
It would probably be more visual, and correct, from the point of view of testing performance close to real.
Have you considered this option?
As an example: https://ibb.co/4SSw81X
It hurts my eyes, I’m sorry š
Brighter colors – NF-A14x25 G2, 50% PWM
Dimmer – Silent Wings 4 Pro 140, Mid Range, 50% PWM
It looks like the NF-A14x25 G2 is superior to the SW4 Pro as a fan for the case (I’m guided by the graph from Noctua: https://noctua.at/pub/media/wysiwyg/A14_further_reading_1_Highly_optimised_PQ_curve_for_all_applications.png ) and for the radiator of the tower cooler, but loses as a fan for the radiator, which generally corresponds to tests on other resources.