First time - Schoeps CMC5 schematics

[jp8]

If I understand you right I can remove C14 and GND, and it won't make a difference if I design a PCB from the scheme?

C14 should stay and be connected to signal ground on the PCBA. PCBA signal ground connects to the mic body by means of the ground connection on the XLR (pin 1 to the tab on the XLR, then from this tab through the screw to the mic body).

On another note. In the original scheme Dr5 is labeled "Ferrite bead", so I'm guessing it's an inductor. But I wonder at what value.

Dr is a German abbreviation of Drossel, which indeed translates as inductor. But in this particular case, it is a ferrite bead, which is an inductor with high resistive losses to reduce potential RF interference. In most Schoeps style incarnations it is left out, probably with the assumption that the capsule and mic body are properly closed Faraday cages.I think the RFI filter on the XLR is more important to reduce RF interference, as demonstrated in the KM84+ and KM84++ projects and in the Takstar CM-63

Jan