BCM 104 broadcast microphone: Microphone capsule

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Broadcast microphone with a condenser capsule and a functionally optimized design, featuring integrated pop protection, suppression of structure-borne noise and a cardioid directional characteristic.
Zoom: BCM 104 broadcast microphone
Acoustical operating principle Pressure gradient transducer
Directional pattern Cardioid
Frequency range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 22 mV/Pa
Sensitivity at –14 dB attenuation 4.4 mV/Pa
Rated impedance 50 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR1) 18 dB
Equivalent noise level, A-weighted1) 7 dB-A
Maximum SPL for THD 0.5%2) 138 dB
Maximum SPL for THD 0.5% with preattenuation2) 152 dB
Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) 76 dB
Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) 87 dB
Maximum output voltage 10 dBu
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Current consumption (P48, IEC 61938) 3.2 mA
Matching connector XLR3F
Weight 500 g
Diameter 64 mm
Length 85 mm
Height (without suspension) 110 mm
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1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS
2) measured as equivalent el. input signal



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