Noctua NF-B9 Reviewhardnrg - June 23, 2008
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|Blade Geometry||NF-B9 Blade Design with BBT & VCN|
|Rotational Speed (+/- 10%)||1600 RPM|
|Rotational Speed with L.N.A. (+/- 10%)||1300 RPM|
|Rotational Speed with U.L.N.A. (+/- 10%)||1000 RPM|
|Airflow with L.N.A.||52.6 m³/h|
|Airflow with U.L.N.A.||41.1 m³/h|
|Acoustical Noise||17.6 dB(A)|
|Acoustical Noise with L.N.A.||13.1 dB(A)|
|Acoustical Noise with U.L.N.A.||7.9* dB(A)|
|Static Pressure||1.61 mm H2O|
|Static Pressure with L.N.A.||1.09 mm H2O|
|Static Pressure with U.L.N.A.||0.64 mm H2O|
|Input Power||1.32 W|
|Input Current||0.11 A|
|Voltage Range||12 V|
|MTBF||> 150,000 h|
|Scope of Delivery||
- Bevelled Blade Tips
Due to advanced design measures like the bevelled blade tips, the NF-B9 is surprisingly quiet despite its outstanding airflow and pressure performance.
- Vortex-Control Notches
Psychoacoustic optimizations like the Vortex-Control Notches make the NF-B9's noise pattern more pleasant to the human ear.
- Smooth Commutation Drive
The new SC drive system reduces torque variations and thereby ensures improved running smoothness, particularly at lower speeds.
- Self-stabilizing oil-pressure bearing
Noctua's well proven SSO-Bearing technology guarantees supremely quiet operation and exceptional long-term stability.