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
