Specifications of the C 391 B:
Electrical working principle:
Acoustical working principle:
Frequency range:
Open-circuit sensitivity (at 1000 Hz): 10 mV/Pa –40 dBV re. 1 V/Pa
Electrical impedance:
Recommended load impedance:
Weighted sound pressure level acc.
to DIN 45405 (CCIR 468-2):
Weighted sound pressure level acc.
to DIN 45412 (A-weighted):
S/N ratio in ref. to 1 Pa (A-weighted): 77 dB
Max. sound pressure level:
Operating temperature range:
Acceptable humidity level:
Powering:
Current consumption:
Outer dimensions:
Net weight:
Housing material:
Housing finish:
Connector:
Connections:
This product conforms to EN 50 082-1
18
condenser microphone, self-
polarized
pressure gradient receiver
20–20,000 Hz ±2 dB from nominal
frequency curve
200 ohms
1000 ohms
26 dB
17 dB-A
80 Pa 132 dB SPL at 1000 Hz,
2000 ohms load imped. and 1 %
THD
250 Pa 142 dB SPL with 10 dB
pre-attenuation
–20° C to +60° C (–4° F to +140° F)
99% at +20° C (68° F)
95% at +60° C (140° F)
9–52 volts d.c. acc. to DIN 45596
2 mA
19 mm
x 147 mm
(3/4
x 5.8 inch)
approx. 115 g (4.1 oz)
brass
matte-grey
3 pin. XLR type
acc. to IEC