SilenX iXtrema LEDIX-12025-DNM
The iXtrema LEDIX-12025-DNM model is missing on the SilenX Corporation website for some reason. I received it in OEM packaging, the only indication of its origin being the sticker on its motor:
As you can see, the 7-blade impeller and the frame are made from transparent and smooth plastic. The impeller and electromotor are 112 and 40 millimeters in diameter, respectively. Three of the fan spokes are 5 millimeters wide; the cable spoke is 8 millimeters wide.
I could spot no special features in the impeller and frame.
This fan proved to have a rotation speed of 1980 RPM and lack PWM-based regulation. Its start-up voltage is 3.1 volts and its peak power draw is 2.95 watts.
There are four LEDs on the motor that produce a mild orange light.
The 3-wire cable is 330 millimeters long. The weight of the fan is 112 grams; it costs $12.
You will find the test results of this fan at the end of the next section.
SilenX iXtrema Pro LED IXP-74-14
As opposed to the previous model, this fan from SilenX is listed at the company’s website although it too comes in OEM packaging without any accessories. TheiXtrema Pro LED IXP-74-14 is manufactured in China and has a 1-year warranty. It will cost you $12.
The frame and impeller of this very light (96 grams) fan are made from matte plastic.
The impeller and electromotor are 113 and 33 millimeters in diameter, respectively. Three of the fan spokes are 4 millimeters wide; the cable spoke is 8 millimeters wide.
The impeller blades have a large angle of attack and are a mere 2 millimeters away from the smooth interior of the frame.
This fan has a constant rotation speed of 1400 RPM. Its air flow is specified to be 72 CFM at 14 dBA. The latter number looks most implausible.
The specifications say that the fan runs on a fluid dynamic bearing but its service life is not declared. A holographic sticker with key product features is attached to the fan:
The iXtrema Pro LED IXP-74-14 starts up at 3.1 volts and consumes 4.7 watts of power, which seems to be quite a lot of a 1400RPM fan. The 3-wire cable is 330 millimeters long.
Here are the test results of the two SilenX fans:
Although having different impellers, the fans have almost the same air flow and noise results, the speed being the same. Both are close to the leader of this test session and do not produce any unwanted additional sounds. So, the SilenX fans are good products. Don’t forget that they are also equipped with highlighting.