Microtech Gefell UM 92.1 S

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Microtech Gefell UM92.1S Buizen Grootmembraan Condensator microfoon

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Microtech Gefell UM 92.1 S



Tube condenser microphone,



  • Classic M7 capsule
  • Charakteristics: omnil, cardioid, figure 8
  • gold-plated plastic diaphragm




The UM92.1 Sstudiomicrophone features our classic M 7 capsule which is renowned for its sound quality. This pressure gradient transducer uses two large diameter gold-plated plastic diaphragms.
The capsules are selected for optimum polar response. Three directional characteristics (omni, cardioid and figure 8) can be selected with a pattern selector switch integrated into the power supply. This vacuum tube microphone has a remarkable signal-to-noise ratio and high sensitivity. The UM 92.1 S has the typical full- bodied sound of tube microphones that are preferred by vocalists and soloists. The direction of maximum sensitivity is perpendicular to the microphone's axis (side addressed). The vacuum tube preamplifier is a well-established design equipped with a pentode working as high μ triode selected for its sonic characteristics. The UN 920.1 power supply provides the polarization voltage for the capsule and the necessary DC voltages for the microphone's preamplifier. For cable lengths over 50 meters it is recommended to have your service provider set the heater voltage of the power supply to 5.8 volts. The UN 920.1 can be powered from AC mains with a primary voltage of 115 or 230 volts / 50 or 60 Hz. The pattern selector switch and the on/off-switch are located on the front panel. The AC mains connector (with choice of voltage), the 7-pin Tuchel connector that powers the microphone and the standard 3-pin XLR connector for audio output are located on the rear panel. The microphone is available in a satin nickel or a black matt finish. 



Technical data


UM 92.1 S
Kugel, Niere, Acht
Akustische Arbeitsweise
40 ... 18000 Hz
Feldbetriebsübertragungsfaktor bei 1 kHz
15 mV / Pa
200 Ω
CCIR 468-4
25 dB
DIN EN 60651
17 dB - A
Geräuschpegelabstand  (bezogen auf 1 Pa bei 1 kHz)
69 dB
77 dB
Grenzschalldruckpegel für 0,5 % Klirrfaktor
120 dB
Dynamikumfang des Mikrofonverstärkers
103 dB
120 V -
1 mA -
5,8 V -
200 mA -
Röhre (rausch- und klingarm)
EF 86
7- pol. Tuchel C 70 / A
430 g
Abmessungen (L x Ø )
197 mm x 42 mm