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HomepageMicrophonesTube Microphones › Gefell M92.1S
Gefell M92.1S

The M 92.1 S is renowned for its high sensitivity and excellent signal-to-noise ratio. It has the warm, full-bodied sound of tube mic that are preferred by vocalist and soloists.

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
  • Specifications
    Polar pattern:

    Acoustical operating principle:
    Pressure gradient transducer

    Frequency range:
    40 ... 18000 Hz

    Sensitivity at 1 kHz:
    19 mV / Pa

    Rated impedance:

    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

    EF 86

    Output connector:
    7- pin Tuchel C 70 / A

    430 g

    Dimensions (L x Ø ):
    197 mm x 42 mm
    Free shipping in Canada. Conditions
    1 Day
    3 Days
    5 Days
    12 Days
    28 Days
    Additional information
    For more information about the M92.1S, please visit the website of Gefell
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