Title: Special studio microphones for vocals
Author: Armin Bauer
Translated from the original German article
Beyerdynamic regards the MC 840 as an all-rounder. This is the reason why the frequency response has been designed for neutrality and airiness. The diagram displays a linear frequency response curve up to 4 kHz, from there is a slight treble increase, which reaches its peak at approximately 10 kHz.
As requested by the designers, the MC 840 sounds very neutral and honest. The speech is pleasantly direct with a good pulse accuracy
The basic sound is slim the beyerdynamic microphone and definitely not sophisticated.
So I see the MC 840 in a classical context, where absolute fidelity of sound is required.