Microtech Gefell UM 92.1 S

Studio Microphone with legendary PVC capsule M 7


Microtech Gefell UM 92.1 S

  • condenser microphone
  • omnidirectional, cardioid, figure 8
  • large diaphragm capsule
  • PVC diaphragm
  • tube pre-amplifier
  • with power supply


The UM 92.1 S studio microphone features our legendary PVC capsule M 7 which is renowned for its sound quality. This pressure gradient transducer uses two large-diameter gold-plated plastic diaphragms. The UM 92.1 S has a remarkable signal-to-noise ratio and high sensitivity. It has the typical full-bodied sound of tube microphones that are preferred by vocalists and soloists.

Three directional characteristics (omni, cardioid, and figure 8) can be selected with a pattern selector switch integrated into the power supply UN 920.1. The vacuum tube preamplifier is a well-established design equipped with a pentode working as a high μ triode selected for its sonic characteristics.

technical data

Polar pattern omni, cardioid, figure of 8
Acoustic operating principle pressure gradient transducer
Frequency range 20 Hz to 20.000 Hz
Sensitivity at 1 kHz 15 mV/ Pa
Output impedance 200 Ohm
Noise level CCIR 468-4 25 dB
DIN EN 60268-4 17 dB-A
Signal-to-noise ratio CCIR weighted 69 dB
A-weighted 77 dB
SPL for THD 0,5 % 120 dB
Dynamic range 103 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 430 g
Length 197 mm
Diameter 42 mm

product contents

with power supply UN 920.1, connection cable C 92.1, elastic suspension EA 92, windscreen W 92, in aluminium suitcase 450 mm x 350 mm x 160 mm