I have both the older Barjans & Diesels I haved test thse aginst 636, Stryker, older cobra, Cobra M77, 3 old coffin mic & these Barjans Desels bet the others I tested against. These mics beat most by a good ammount & 2 only by a little most of the people told me said this mic sounds cleaner & louder when I tested them on the air.
I am asking about the newer K40 is it better than the older versions