The mutual contact of these parts is through a groove that makes the fan tunnel tight enough so you don’t have to worry about static pressure drop, and the transition between these parts is fairly smooth and everything lines up nicely all around. Its front part is white/light guiding (to highlight the ARGB LEDs) and the back part is black. The Prisma AL-14 PWM frame also differs from the Aspect AL-14 PWM frame in that it is two-piece. However, the overall frame diameter is only 0.5mm narrower, which makes for a negligible area in terms of overall cross-sectional area for where air can leak inefficiently. So while the blades are the same length on both fans, they have a tighter margin on the Prisma AL-14 PWM fan. And also because of the smaller gap between the frame and the tips of the blades. This is mainly due to the significantly more powerful motor (compared to the Aspect AL-14 PWM), which can maintain a higher rotor speed in a high resistance environment. The static pressure is supposed to be 23.3% higher compared to these fans, which is also a bit “off”, but here we can already look for reasons why the Prisma AL-14 PWM fan should be potentially better in this respect. Nevertheless, the specifications of the Prisma AL-14 PWM fans claim up to 33.1% higher airflow at the same speed (1700 rpm). This detail is also the same on the newer Aspect AL-14 PWM fans. Behind the leading edge of each blade is a full-length protrusion, which is designed to break up unwanted microturbulence at the fan intake. Thus, the rotor consists of seven wider but thinner blades with less curvature. Not just in shape, but in the material used and its thickness. One of the things that hasn’t changed across the model lines (Prisma and Aspect) is the rotor design. In that time, Fractal Design has managed to change the way they design fans, which we’ll discuss in the text. We’ve already tested that one, although it came out more than two years later. In the following, the Prisma AL-14 PWM model under test will often be confronted with the Aspect AL-14 PWM fan. The Prisma AL-14 PWM fan, which will be the subject of the following analysis, was thus (together with the SL-14/ 12 and AL-12 models) among the first Fractal Design products with (A)RGB LEDs. The company didn’t bother with the analog generation on 12V and started right away with lighting powered digitally by 5V via a 3-pin connector. With the Prisma fans, Fractal Design jumped into the “RGB LED” waters that it hadn’t swam in before (until their release). The title of the article has a bit of a pejorative tone and while the Prisma AL-14 PWM is a decent fan, it already has a superior from its own ranks. However, this is physically impossible due to the constructional differences of the two fans. According to the specs, they are supposed to achieve the highest airflow at a lower noise level than the Aspect 14s. Fractal Design Prisma AL-14 PWM in detailįractal Design claims the Prisma models as its most efficient 140mm fans.
0 Comments
Leave a Reply. |