M 40
 microphone capsule
Microtech
 Gefell introduces with Generation 4 a new modular microphone system. 
The start of Generation 4 includes the ultra-compact microphone 
preamplifier MV 400 with two alternative connectors, the microphone 
capsules M 40 (cardioid), M 41 (super cardioid), M 42 (omnidirectional) 
and M 43 (wide-cardioid) as well as options and accessories for 
professional use. The advantage of the modular concept is a fast 
reaction to changing requirements and a more productive workflow. With 
Generation 4, Microtech Gefell evolves from their existing tradition of 
modular microphone systems into a new and ultra-compact dimension.
technical data
| Polar pattern | cardioid | 
| Acoustic operating principle | pressure gradient transducer | 
| Frequency range | 20 Hz to 20 kHz | 
| Sensitivity at 1 kHz | 13 mV/Pa | 
| Output impedance | 100 Ohm | 
| Noise level | IEC 268-4 | 14 dB(A) | 
| CCIR 468-4 | 25 dB | 
| Signal-to-noise ratio | A-weighted | 80 dB | 
| CCIR weighted | 69 dB | 
| SPL for THD 0,5 % | 146 dB | 
| Max. output level | RL = 10 kOhm | 18 dBu | 
| RL = 1 kOhm | 17 dBu | 
| Dynamic range | 132 dB | 
| Current consumption | P48, IEC 61938 | 4 mA | 
| Weight | 26 g | 
| Length | 26 mm | 
| Diameter | 21 mm | 
| Surface | black matt |