Average Noise
The PSU’s average noise output is notably lower than that of the YT1200 model.
Fan Noise & Speed Maps @ 28-32 °C – 115V
Similar to the YT1200, the fan speed profile map looks like a modern abstract art painting, but overall, it is notably less aggressive. The fan’s passive mode lasts up to 400W at 12V, with the load on the minor rails remaining below 70W. At loads of up to 400W, if you apply more than 70W to the minor rails, the fan’s speed increases, raising the noise level to the 10-15 dBA range, which is not particularly high. For loads higher than 400W, the fan’s noise exceeds 25 dBA if you apply more than 70-75W on the minor rails. The 30 dBA mark is reached at around 710W, and the 30-35 dBA period lasts for a very short time. The dominant noise range for loads exceeding 710W is 35-40 dBA, with a shorter period where the noise exceeds 40 dBA, particularly when the load on the minor rails exceeds 90W. Clearly, the load on the minor rails highly affects noise output, so it would be a good idea for Andyson to use proper heatsinks to keep the corresponding circuit cooler under increased loads.
Fan Noise & Speed Maps @ 28-32 °C – 230V
At 230V, the fan speed profile is identical to that of the 115V input.
Average efficiency increased by only 0.3% compared to the YN series. Not impressive.