Microtech Gefell M990 Tube condenser microphone, dark bronze (M930 capsule)
- condenser microphone
- cardioid
- large diaphragm capsule
- PE diaphragm
- tube pre-amplifier
- with power supply
specification
The M 990 is renowned for its high sensitivity and excellent signal-to-noise ratio. It combines modern large membrane capsule technology with the typical full-bodied sound of tube microphones that are preferred by vocalists and soloists. The M 990 vacuum tube condenser microphone is well-suited for difficult radio play productions as well as a supporting microphone for orchestra recordings. The pressure gradient transducer of the M 990 uses a large diameter gold-plated plastic membrane.
technical data
| Polar pattern | cardioid | |
| Acoustic operating principle | Pressure gradient transducer | |
| Frequency range | 20 Hz to 20.000 Hz | |
| Sensitivity at 1 kHz | 28 mV/Pa | |
| Output impedance | 200 Ohm | |
| Noise level | CCIR 468-4 | 24 dB |
| DIN EN 60268-4 | 13 dB-A | |
| Signal-to-noise ratio | CCIR weighted | 70 dB |
| A-weighted | 81 dB | |
| SPL for THD 0,5 % | 119 dB | |
| Dynamic range | 106 dB | |
| DC power supply | 120 V- | |
| Anode current | 1 mA- | |
| Heater voltage | 5,8 mV- | |
| Heater current | 200 mA- | |
| Tube (low-noise) | EF 86 | |
| Output connector | 7-polig, Tuchel C 70/A | |
| Weight | 400 g | |
| Length | 185 mm | |
| Diameter | 43 mm | |
frequency curves
M 990 cardioid
polar diagrams
M 990 cardioid
| Title | Type | Size | Download |
|---|---|---|---|
| MG-M990-brochure-1.pdf | 115.04KB | Download |
