MPN #211189    
Gefell M92.1S


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Large diaphragm vintage tube studio condenser microphone with cardioid polar pattern

The M 92.1 S vacuum tube condenser microphone is suited for difficult radio play recordings as well as a supporting microphone for orchestra recordings. The renowned pressure gradient transducer of the M 92.1 S uses two large diameter gold-plated plastic dia-phragms. The vacuum tube preamplifier is equipped with a pentode working as a triode selected for its sonic characteristics.

The N 920.1 power supply provides the operating voltage for the vacuum tube condenser microphone. It can be powered from AC mains with a primary voltage of 115 or 230 volts / 50 or 60 Hz. For cable lengths over 50 meters it is recommended to have yourservice provider set the heater voltage of the power supply to 5.8 volts. The N 920.1 is equipped with an on/off-switch, a 7-pin Tuchel connector that powers the microphone and a 3-pin XLR connector with integrated line voltage selector.

The M 92.1 S is packed in a wooden case and comes with power supply N 920.1, connection cable C 92.1and elastic suspension EA 92.

The microphone is available in a satin nickel or a finish.
  • Legendary M7 capsule
  • Large diameter gold-plated plastic membrane
  • Tube preamplifier with EF86
  • Polar pattern: Cardioid
    Acoustical operating principle: Pressure gradient transducer
    Frequency range: 40 ... 18000 Hz
    Sensitivity at 1 kHz: 19 mV / Pa
    Rated impedance: 200

    Equivalent loudness level due to inherent noise:
    CCIR 468-4 (qps): 25 dB
    DIN EN 60651: 15 dB - A

    Signal-to-noise ratio (re 1 Pa at 1 kHz):
    CCIR-weighted: 69 dB
    A-weighted: 79 dB

    Max. SPL for THD 0,5 %: 103 dB
    Total dynamic range of the microphone amplifier: 106 dB
    DC power supply: 120 V
    Anode current: 1 mA
    Heater voltage: 5,8 V
    Heater current: 200 mA
    Tube: EF 86
    Output connector: 7- pin Tuchel C 70 / A
    Weight: 430 g
    Dimensions (L x Ø ): 197 mm x 42 mm
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