[Elecraft] CM-500 Question

[Larry Martin]

I purchased a CM-500 over 10 years ago when I first got my K3.  K3 is still going strong but the headset died a couple of years ago and has since been discarded.  I've read several comments that the current CM-500's don't have as good of a microphone as the earlier ones.  Does anyone have any experience on the latest batch of them?  I always received great audio reports on my old setup and need to purchase another headset.  Just wanted some feedback before buying another CM500.  

Much appreciated