SV 977D User Manual - Appendixes
Microphone
MK 255 prepolarised free-field ½” condenser microphone
Nominal sensitivity 50 mV/Pa (corresponding to -26 dB re 1 V/Pa)
Capacitance 17 pF
Reference point geometric centre of the microphone diaphragm.
Note: Maximum sound pressure level that can be applied to a microphone without destroying it:
146 dB.
Typical MK 255 Free Field frequency response (source: Microtech Gefell Gmbh)
Table C.1.4. MK 255 free field corrections using the electrostatic actuator for 0 deg incidence angle
Preamplifier
SV 12L nominal preamplifier attenuation: 0.7 dB;
IEPE Type – power supply 1.5 mA@30 V