Diaphragm Excursion vs. SPL
- Thread starter RitchRock
- Start date
Help Support GroupDIY Audio Forum:
Tim Campbell
Well-known member
It isn't that simple a question. It really depends on the combination of distance to the backplate, resonance frequency and the polarization voltage.
Tim Campbell
Well-known member
The diaphram under those circumstance and normal use could easily move more than the 20 microns spacing to the backplate.
In the B&K Microphone Handbook, it states the separation is typically set to 20 micron +/-0.5 micron. Does the polarization voltage dampen the membrane that much? I would think suck-in would occur if the membrane was that close to the back-plate.
Tim Campbell
Well-known member
The B&K capsule you refer to is an omni and it's resonance frequency is far above hearing not midband.
Similar threads
