Noise Level Results
What was really impressive was that we took this reading of the noise level of the fan while it was peaking at 800 RPM, and even then all we were getting was the 25 dB result shown in the chart.
Just to give you perspective on this sort of a result, you really have to have an open air chassis or have your ear within a few inches to even start to pick up on this level of noise.
Even with the fans speeding along at 1400 RPM, sound levels are very low. Staying in the second position on our charts, even with the maximum noise level the fan can produce, we only registered 39dB on our meter.
Usually the gap between rated noise levels on the "(A)djusted" scale is greater than what we found; maybe someone had their meter on the dB setting instead.