Frequency Plots
20% Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
At mid to high speeds, noise increases in the middle frequencies (1 – 2 KHz), which can be annoying.
Signal Recordings
I have recorded the signals shown above, but please keep in mind that I’ve enabled Automatic Gain Control (AGC) to do so to make it easier for you to reproduce them. The provided recordings are only offered for aural identification purposes.
20% Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
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