Product | M147 | Detail Data

Acoustical operating principle Pressure gradient transducer
Directional Pattern Cardioid
Frequency Range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 20 mV/Pa
Rated Impedance 50 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR¹⁾ 24 dB
Equivalent noise level, A-weighted¹⁾ 12 dB-A
Typical SPL (tube characteristic) for K<0.5% 3²⁾ 114 dB
Typical SPL (tube characteristic) for K<5% 4²⁾ 134 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL)¹⁾ 70 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL)¹⁾ 82 dB
Maximum output voltage 8 dBu
Dynamic range of the amplifier, DIN/IEC 651, for THD < 0.5%²⁾ 102 dB
Dynamic range of the amplifier, DIN/IEC 651, for THD < 5%²⁾ 122 dB
Power supply N 149 A
Matching connector Microphone: DIN 8 F, Power Supply: XLR 3 F
Weight 460 g
Diameter 57 mm
Length 142 mm

1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS

3) measured as equivalent el. input signal

Diagrams

Cardioid M 147 Tube

Cardioid M 147 Tube Cardioid M 147 Tube