Beyerdynamic MM-1 Omnidirectional Condenser Measurement Microphone

Beyerdynamic MM-1 Omnidirectional Condenser Measurement Microphone for Acoustical Measurements, Phantom Powered, 20-20000Hz = 2.2kOhms Load Impedance

SKU: BDMM1
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Beyerdynamic MM-1 Specifications

  • Transducer type

    Condenser (back electret)

  • Operating principle

    Pressure

  • Polar pattern

    Omnidirectional, diffuse field calibrated

  • Frequency response

    20 - 20000Hz (50 - 16,000 Hz +/- 1.5 dB)

  • Open circuit voltage at 1 kHz

    15 mV/Pa (= -36.5 dBV) +/- 1 dB

  • Nominal impedance

    330 Ohms

  • Nominal Load impedance

    = 2.2 kOhms

  • Max. SPL at f=1 kHz, k=1%, R L=2.2 kOhms

    128 dB SPL

  • S/N ratio rel. to 1 Pa

    > 57 dB

  • A-weighted equivalent SPL

    28 dB(A) approx.

  • Power supply

    12 - 48 V phantom supply

  • Current consumption

    3.4 mA approx.

  • Output

    Transformer balanced

  • Connection

    3-pin XLR male

  • Diameter

    Shaft: 19/9mm (0.74/0.35")
    Head: 9mm / 0.35"

  • Length

    133mm / 5.23"

  • Weight

    88g / 3.1oz (without cable)

About Beyerdynamic MM-1

The Beyerdynamic MM-1 is a measurement microphone which has been designed specifically for measuring sound reinforcement and PA-systems. It is designed to work with spectrum analyzers for measuring frequency response and sound pressure levels of loud speaker systems. The MM-1 is the ideal microphone for the measurement of audio signals in the research, development, for reverberation testing's and other applications. The narrow tubular construction ensures that the microphone has negligible influence on the sound field so that an increase in sound pressure is avoided with high frequencies. A natural reproduction is achieved due to the linear frequency response.

Beyerdynamic MM-1 Features

  • Linear frequency response in the diffuse field / under 90deg.
  • Calibrated open circuit voltage
  • Narrow tubular construction

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Key Features

  • Ideal for flexible high-performance expansion
  • Calibrated open circuit voltage
  • Narrow tubular construction