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Specifications
C 451 B
21
Polar pattern: cardioid
Frequency range: 20 to 20,000 Hz ± 1.5 dB from published curve
Sensitivity: 9 mV/Pa / -41 dBV re 1 V/Pa
Electrical impedance: < 200 ohms
Recommended load impedance: > 1000 ohms
Max. SPL for 0.5% THD: 112 Pa / 135 dB SPL with 0 dB preattenuation*)
355 Pa / 145 dB SPL with 10 dB preattenuation*)
1120 Pa / 155 dB SPL with 20 dB preattenuation*)
Equivalent noise level to IEC 60268-4 (A-weighted): 18 dB-A
Dynamic range: 117 dB max. (A-weighted)*)
Preattenuation pad: switchable to 0 dB, -10 dB, -20 dB
Highpass filter: switchable to flat or 12 dB/octave at 75 Hz or 150 Hz
Powering: 9 to 52 V phantom power to IEC 61938
Operating temperature: -20°C to +60°C
Connector: 3-pin male XLR
Finish: satin nickel plated
Size: dia.: 19 mm (0.7 in.); length: 160 mm (6.3 in.)
Net/shipping weight: 125 g (4.4 oz.) / 760 g (1.7 lbs.)
*) Values measured with 48-V phantom power. Reduce by 2 dB for 24-V or 8 dB for 12-V phantom
power.
This product conforms to the standards listed in the Declaration of Conformity. To order a free copy of
the Declaration of Conformity, visit http://www.akg.com or contact sales@akg.com.
Frequency Response Polar Diagram
0ϒ
150 Hz75 Hz