5mm offset improves acoustics and performance in “pull” type applications
Compatible with all current Noctua square-frame 140x25mm fans
Ideal for two 140mm PC case intake fans or 280mm radiators
Suction applications where fans draw air through obstacles such as grills or perforated panels are notoriously challenging acoustically due to the turbulences caused by these obstacles. Introducing a 5mm off-set between the fan and the obstacle, the NA-IS1 spacers can reduce these turbulences, which often improves noise levels and/or noise profiles significantly.
Reducing influx turbulences doesn’t only improve acoustics, it also helps fans to operate more efficiently from an airflow performance point of view because the fan blades are less hampered by turbulence. In many suction type applications, using inlet spacers can therefore enable fans to achieve higher flow rates and lower noise emissions at the same time.
Replacing the fan’s stock NA-AVP1 anti-vibration pads, the NA-IS1-14 are compatible with all current Noctua square-frame 140x25mm fans such as the popular NF-A14 or NF-P14s redux series. Fans from other manufacturers are not supported.
The NA-IS1-14 Sx2 is a set of two spacer frames plus the matching anti-vibration mounts, fan screws and radiator screws – ideal for equipping e.g. two 140mm intake fans in the front of a PC case or two 140mm fans on a 280mm radiator that’s installed in a front intake position.
For use with case intake fans, the NA-IS1-14 Sx2 contains eight long self-tapping fan screws and eight NA-AV3 silicone anti-vibration mounts for tool-free, vibration-proof installation. Both the screws and the anti-vibration mounts simply go through the holes in the spacer and attach to the fan, sandwiching the spacer between the fan and the case.
For use with water cooling radiators, the NA-IS1-14 Sx2 contains 35mm long radiator screws, eight pieces with M3 thread and eight pieces with UNC 6-32 thread so that customers can choose the correct type for their radiator.
