Are they 80 or 92mm fans?
You are correct You can realize the same volume of air delivery at
lower noise levels by running 2 or more fans slower. Increasing the
intake area for the same volume of flow reduces pressure, turbulence,
noise... lots of cool stuff. :)
I'm not sure what the
I think the KPA-1500 is a very nice amplifier and am happy to won one. That
said, I'd like to see Elecraft find ways to reduce the fan noise, and I believe
there are solutions, such as: in "Fan 1" mode: rather than have Fan 1 turn on
at full speed with full noise, I'd much prefer to have all 3
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