[Elecraft] KPA-1500 fan speeds and fan noise

[rlvz at aol.com]

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 fans turn on and run at 1/3 speed as the noise should be reduced while the air flow would be about the same.  When the 3 similarly sized fans on my Yaesu Quadra run at slow speed while the amp is in stand-by or receive mode they are pretty quiet and only generate about the same amount of noise as many desktop computers, and when the Quadra is transmitting the fans go to high speed and produce about the same amount of noise as the KPA-1500 when it's running in the "Fan 2" position.  I imagine Fan positions 3-4-5 are needed because the heat sink in the KPA-1500 is relatively small because the physical size of the amp is small?
 
73,
Dick- K9OM