Setup and test results …
For pure benchmarking, the fans were controlled via the controller when they were removed. The volume was always measured from a constant distance of 100cm using a highly sensitive Shure SM57 Dynamic instrument microphone and a db meter.
| PWM % | BioniX P120 | BioniX P140 |
| 100% | 2050 rpm / 24 dB | 1950 rpm / 26 dB |
| 80% | 1740 rpm / 20 dB | 1670 rpm / 22 dB |
| 60% | 1380 rpm / 15 dB | 1330 rpm / 16 dB |
| 40% | 960 rpm / 10 dB | 920 rpm / 11 dB |
| 20% | 440 rpm / 5 dB | 410 rpm / 5 dB |
| 0% | 0 rpm / 5 dB | 0 rpm / 5 dB |
The Arctic BioniX P fans are pleasantly quiet, especially in view of the relatively high speeds up to approx. 2000 rpm. Up to a speed of approx. 1300 rpm at 60% PWM they are hardly audible and even at approx. 25 dB at full speed they are whisper quiet.
The fans actually show a very low vibration operation. Even when we placed them on a resonance body, only a very quiet hum could be perceived. Arctic didn’t promise too much here.
Arctic BioniX Practical testing …