Miniature Microphone

KM 120

The KM 120 was part of the KM 100 series, Neumann’s first modular small diaphragm microphone system. The KM 120 combines the KM 100 output stage with the figure-8 capsule AK 20.

  • Miniature microphones with 7 exchangeable capsules
  • Transformerless circuitry
  • Extensive accessories
KM 120
KM 120
Diameter 24/22 mm
Length 110 mm
Weight 102 g
Current consumption (P48, IEC 61938) 2 mA
Directional Pattern Side-fire figure-8
Frequency Range 20 Hz ... 20 kHz
Matching connector XLR 3 F
Rated Impedance 50 Ohms
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Acoustical operating principle Pressure gradient transducer
Maximum output voltage 10 dBu
Rated load impedance 1000 Ohms
Equivalent noise level, CCIR 26 dB
Maximum SPL for THD 0.5% 140 dB
Equivalent noise level, A-weighted 17.5 dB-A
Sensitivity at 1 kHz into 1 kohm 12 mv/Pa
Maximum SPL for THD 0.5% with preattenuation 150 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL) 68 dB
Signal-to-noise ratio, A-weighted (re. 94 dB SPL) 76.5 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL) 68 dB


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WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to:

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