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Stereo Boundary Microphone


  • High quality subminiature stereo microphone for digital recorder
  • Plug-in power* method or operation of LR44 battery with power module
  • Newly developed rubber floating structure to decrease external vibration noise from desk surface
  • The noise such as the winds is decreased by the room / outdoor mode switch, and the recording according to the purpose is possible
  • It excels in the acoustical property, and the metal mesh that decreases the extrinsic noise is used for all aspects
    *The plug-in power method is supplied the power supply from the microphone input of the connected equipment to the microphone and operates

    • audio technica AT9920
  • AT9920 Specifications

    Stereo Electret Condenser
    Polar Pattern
    Unidirectional (Left/Right)
    Frequency Response
    70 ~ 16,000 Hz
    -44 dB (6.3 mV) re 1V at 1 Pa
    1,500 Ω
    Power Supply
    Battery / Plug in Power
    Battery Current / Life
    About 300 hrs.
    Mic.: 24.5mm(H) x 55mm(W) x 61mm(D)
    Power module: 13.6mm(H) x 22.4mm(W) x 44.8mm(D)
    Microphone: 46 g;
    Power module: 15.5 g
    Mic.: 1.6 m
    Power module: 0.2 m
    Accessories Furnished
    Power module, LR44 battery


    audio technica support AT99s.pdf - AT99 Series Brochure (Chinese)