Though if you want the sound of the old KM 84 you will need to get the Gefell M300
Please tell me more about the sound of the Gefell M300 emulating the old Neumann KM 84. I have never heard that before your post.
ya me too!
I would not say it's an "emulation".
Gefell is the original company started by Georg Neumann in 1928 - you can read the complete history
HERE.
During the war, Neumann moved the complete factory to Gefell to avoid the bombing and the factory got trapped in the east after the war. Georg Neumann set up Neumann Berlin and the two factories had good contacts until the Berlin Wall went up in the early 1960s.
So Gefell is really the original Neumann.
Gefell is still owned by the Neumann family (Georg Neumann KG own Microtech Gefell as I understand it), Neumann Berlin is now owned by Sennheiser (though the Neumann part is still in Berlin and is made to traditional Neumann standards).
The original Neumann M7 capsule is only made at Gefell.
The Gefell M300, as many people say, is close to the KM84 in sound - much closer than the newer KM184.
I hope this helps.