How does condenser mic capsule load affect THD?

[Khron]

Is there any at least theoretical way to get rid of the "passive" or parasitic capacitance of the capsule. By using bootstrap, or negative capacitance?

This is a question more than a suggestion / solution, but might the charge amplifier setup influence the input capacitance in any positive way?

https://audioimprov.com/AudioImprov/Mics/Entries/2015/12/20_Modding_a_BM-800_Mic.html
Upon some further thinking, it might even increase it, but... my knowledge about the finer points of discrete circuit design is failing me on this

 

[kingkorg]

This is a question more than a suggestion / solution, but might the charge amplifier setup influence the input capacitance in any positive way?

https://audioimprov.com/AudioImprov/Mics/Entries/2015/12/20_Modding_a_BM-800_Mic.html
Upon some further thinking, it might even increase it, but... my knowledge about the finer points of discrete circuit design is failing me on this

If i understood him right, Doug Ford bootstraped the high input capacitance of if4500 in Rode mics. Also i have read about negative capacitance concept, but can't wrap my head around it. Seems to be possible with op-amps.

 

[abbey road d enfer]

Is there any at least theoretical way to get rid of the "passive" or parasitic capacitance of the capsule. By using bootstrap, or negative capacitance?

It is possible to use an active guard. I think I saw an example somewhere but can't remember.

 

[abbey road d enfer]

Also i have read about negative capacitance concept, but can't wrap my head around it. Seems to be possible with op-amps.

Negative capacitance is emulated by bootstrapping with an amplified version of the signal transmitted.
This is a very crude basic implementation. In practice, the amplifier must be isolated from the capacitor for stabilization.
Since it is positive feedback, all sorts of precautions are needed, making sure that the capacitances and gains are stable.