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Neumann SKM 140 Stereo Microphone Set

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(800) 771-8330

Stereo Microphone Set with (2x) KM 140 Microphones


The Neumann SKM 140 Stereo Microphone Set is a stereo microphone set consisting of 2 KM 100 phantom power supply/output stages, and 2 AK 40 cardioid microphone elements. The system is stored in a wooden jeweler's case.

The KM 100 is powered via 48V phantom power and is designed for quick connection to all compatible elements and accessories. The KM 100 uses transformerless circuitry resulting in high output capability and low self-noise. The balanced XLR output is protected against radio frequency interference. The entire microphone circuitry is built into the capsule on a single hybrid module measuring 2cm in area. The result is a compact, interchangeable output stage providing pristine output signal without any coloration.

The AK 40 microphone element features a pressure gradient, single diaphragm transducer with a cardioid polar pattern. The cardioid polar pattern is highly effective in reducing off-axis ambiance and noise. This allows the element to be used in recording and sound reinforcement applications, in front of stage monitors or instrument miking.


  • Stereo Set
    The combination allows stereo capturing in X/Y configurations
  • Modular Design
    The KM 100 is modular, allowing compatible interchangeable elements to be used depending on the application. The capsule is powered via 48V phantom power
  • Pristine Output Signal
    Transformerless design and custom circuitry provide a pristine, low noise, high output character to signal at the KM 100 output stage.


  • Transducer: Pressure Gradient Condenser
  • Polar Pattern: Cardioid
  • Frequency Response: 20Hz - 20kHz
  • Dynamic Range (Typical): 122dB
  • Signal-to-Noise Ratio:
    69dB, Rated at 1 Pa @ 1 kHz (CCIR)
    78dB, Rated at 1 Pa @ 1 kHz (A-Weighted)
  • Maximum Input Sound Level: 138dB
  • THD & Noise: Less than 0.5%
  • Power Requirements: 48V Phantom Power
  • Output Impedance: 50 Ohms
  • Output Connectors: 3-Pin XLR Male
  • Pad: Yes, -10dB
  • Low Frequency Roll-Off: None
  • Dimensions (LxDiameter): 3.68 x 0.88" (92 x 22mm)
  • Weight: 2.82 oz (80g)


  • 2 x KM 140 Cardioid Microphones (AK 40 with KM 100)
  • 2 x LC3 KA Connecting Cables
  • 2 x SG 21 bk Mounts
  • Wooden Jewelers Case
  • 1-Year Limited Warranty

Q & A

SKM 140
MFR Part Number
Product Category
Stereo Microphones
Unit of Measure
Shipping Weight
2.86 lbs.
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