Microtech Gefell MT71S
FET Dual Membrane Cardioid Microphone


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NOTE: Available in satin nickel and black matte finishes.  Comes with wood case.

Microtech Gefell's MT71S is a cardioid-pattern FET microphone that features their M7 dual-membrane, gold evaporated capsule.  The MT71S also included a low-noise capsule amplifier for superior transient response, wide bandwidth and a natural uncolored sound.  The slim design benefits the MT71S with less acoustic field disruption around the microphone and greater placement ease when close micing instruments.  Ideal for recording, broadcast, voice-over and live sound reinforcement.

Mounted inside on the MT71S's triangulated pedestal is an M7 capsule, which is a pressure gradient transducer that is renowned for its warm and natural tone.  It features a dual 1" (25 mm), 24-karat gold evaporated membrane design with a PVC substrate.  The triangulated capsule pedestal deflects unwanted body reflections away from the microphone, reducing phase cancellation and comb-filtering.  This offers greater source detail, improved upper-harmonic reach, and a more articulated rendering.

The accurate and colorless sound of the MT71S is well-suited for instrumental and vocal soloists in radio and television broadcast.  Comes in it's own beautifully hand-crafted wood box.


  • Polar pattern: Cardioid
  • Acoustical operating principle: Pressure gradient transducer
  • Frequency range: 40 Hz - 18 kHz
  • Switch position "reduced bass roll-off" at 90 Hz: -10 dB ± 1 dB
  • Sensitivity at 1 kHz: 13 mV/Pa ± 3 dB
  • Rated impedance: 150 ohms
  • Equivalent loudness level due to inherent noise:
    - CCIR 468-4: 22 dB
    - DIN EN 60651: 14 dB - A
  • Signal-to-noise-ratio (re. 1 Pa at 1 kHz):
    - CCIR-weighted: 72 dB
    - A-weighted: 80 dB
  • Max. SPL for THD = 0.5 %: 134 dB
  • with 10 dB preattenuation: 144 dB
  • Total dynamic range of the microphone amplifier: 120 dB
  • Current consumption (P 48, DIN 45596, IEC 268-15): 3 mA
  • Output connector: 3-pin XLR-connector, gold-plated contacts
  • Weight: 285 g
  • Dimensions (L x Ø): 217 mm x 42/21 mm
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