Endorfy Corona 120: Only the (ARGB) ring visible in the dark

From the models still sold under the SilentiumPC brand, the Corona fans have come a long way. They are still more “showy” than “efficient,” although even in their primary function they don’t fall behind as much as you might expect (even if airflow per unit of noise is lower…). Their loyalty to the ring‑style light guide remains. Together with ARGB LEDs, it frames the fan’s impeller—and it really does look good. What do you think?

Results: Frequency response of sound w/o obstacles

Measurements are conducted using TrueRTA, which captures audio data across 240 frequency bands within the 20–20,000 Hz range. To facilitate comparisons between articles, we extract and present the dominant frequency from each of three spectral bands: low (20–200 Hz), mid (201–2000 Hz), and high (2001–20,000 Hz) in standardized bar graphs.

However, for an even more detailed analysis of the sound expression, it is important to perceive the overall shape of the graph and the intensity of all frequencies/tones. If any aspects of the graphs or data tables are unclear, detailed interpretation guidelines are provided in this article.

Most fan-related acoustic activity occurs within the 70–7000 Hz range. Frequencies above 7000 Hz typically represent electromagnetic interference from the test environment, while the lowest bands below 70 Hz may also include such noise, albeit mixed with aerodynamic sound. Although we could exclude these frequency extremes, they are retained to detect and visualize potential anomalies.