[Elecraft] KX-3 microphone question

[Linda and Bob]

Can you use the Yamaha CM-500 head set with the KX-3? I use this headset 
with my K3/100. It works very well with this radio. I believe the CM-500 
came with some kind of adaptor plug for the mic input (1/8" to 1/4" or vice 
versa?). I don't believe the speaker plug will be a problem using this 
headset with the KX-3. I know that Elecraft sells a Heil Pro-headset with 
the proper adapter plugs for the KX-3, but it is much more expensive than 
the Yamaha CM-500. Does the main VFO knob on the KX-3 have a nicer feel than 
the K3?

I would also like to hear some feedback from the new users of the KX-3. How 
do you like the RX, DSP filtering, how does the KX-3 RX compares ot the K3 
etc? Thanks for your help.

Bob Wilderman, K3SRO
dlrwild1 at verizon.net