Project Specific Discussions => Microphones => Topic started by: kingkorg on July 31, 2019, 05:19:17 PM

Title: Edge Terminated Capsule Disassembly / Tuning
Post by: kingkorg on July 31, 2019, 05:19:17 PM
Might be of some use to someone...

So this is edge terminated capsule from 797 audio. Even though its edge terminated it has closest FR to Neumans k67 I've ever measured. It is cardioid only.

The other thing I like is it is relatively easy to disassemble, and change spacers to modify response. The membrane is glued to the ring, and absence of center termination makes it easy to take apart non destructively. 

Increasing spacer thickness between membrane and backplate tames high end and bass response, brings mids to focus. It lowers the capsule sensitivity, but this can be compensated by rising polarizing voltage. The aluminum spacer I remove in this video is the one I added before, and its about 15micron thick. I have these from some other capsules I disassembled before.

The FR can be seen at the end of the video. Green curve is the capsule with additional aluminum spacer, the other one is stock.

For people who are into ASMR, watch with headphones LOL!