[Elecraft] Connecting Headset Aviation Bose A20 to K3S?

[Andy D. Hansen]

Hi

I intend to buy a (1K$) noise canceling Headset to suppress the very
disturbing FAN noise by my KPA 500 in QRQ > 30/40 Wpm  CW Mode. Changing of
FAN + external Fans not successful.

 

Will this work with the K3S. Bose says EMI /EMC should be ok for HF. 

 

I understand DC Bias 8V is no problem. 

 

How about the Stereo 320 Ohm Earphone impedance and the K3S recommended 16
Ohm min ?

 

How should the electret mike be configured Bias through 220 to 2200 Ohm?

 

Any experience here?

 

tnx

vy 73 de Andy 

HB9CVQ