Audio-Technica AT831B
Miniature cardioid condenser lavalier/instrument microphone (battery/phantom)

OUR PART #  AT831B


The Audio-Technica AT831B is specifically designed to solve problems in professional video and broadcast applications. The AT831B's specially tailored response assures crisp, natural voice quality in a small, unobtrusive package, while the cardioid pickup pattern reduces ambient noise pickup for improved performance sound isolation. Powered by a single 1.5V "AA" type battery, or by 9-48V phantom power, with a cable to the belt module which also includes an on/off switch for use when battery powered.

Audio-Technica AT831B Features:

  • Clip-on lavalier mic also excels in acoustic guitar applications
  • Provides crisp, full-sounding voice and instrument pickup
  • Operates on battery or phantom power
  • 6' (1.8 m) cable permanently attached between microphone and power module
    Audio-Technica AT831B Specifications:
    • Element:  Condenser
    • Phantom Power Requirements:  9 - 52V, 2 mA typical
    • Polar Pattern:  Cardioid
    • Battery Type:  1.5V AA/UM3
    • Frequency Response:  40 Hz - 20 kHz
    • Battery Current/Life:  1 mA/1000 hours typical
    • Open Circuit Sensitivity:  -45 dB (5.6 mV) re 1V at 1 Pa
    • Switch:  Off; On-Flat, On-Roll-Off , Off battery only
    • Impedance:  200 ohms
    • Low-frequency Roll-off:  150 Hz, 6 dB per octave
    • Maximum Input Sound Level:  126 dB SPL, 1 kHz at 1% T.H.D.
    • Weight:  0.1 oz (2.8 g)
    • Signal To Noise Ratio:  65 dB, 1 kHz at 1 Pa
    • Power Module:  In-line
    • Dynamic Range (Typical):  97 dB, 1 kHz at Max. SPL
    • Output Connector:  XLRM-type (power module)
    • Included Accessories:
      • AT8116 foam windscreen
      • AT8417 clothing clip
      • AT8444 instrument adapter
      • AT8530 power module (attached)
      • Battery
      • Protective Case
    Audio-Technica AT8418 Replacement instrument mount and windscreen

    Audio-Technica AT8418 Replacement instrument mount and windscreen

    UniMount Microphone Instrument Mount.
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    In Stock
    Audio-Technica AT8417 Mic Clip for AT803A

    Audio-Technica AT8417 Mic Clip for AT803A

    The AT8417 lavalier clothing clip features an adjustable wire fitting allowing use with virtually any size lavalier microphone.
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    In Stock
    Audio-Technica AT8411 Lavalier Tie Clip

    Audio-Technica AT8411 Lavalier Tie Clip

     The AT8411 lavalier tie / clothing clip is designed to fit the Audio-Technica Pro 7a, Pro 35x, AT-803B, AT-831R / 831B / 831C and Pro 95 lavalier microphones.
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    In Stock
    Audio-Technica AT8116 Small Black Windscreen for M1 Case Style

    Audio-Technica AT8116 Small Black Windscreen for M1 Case Style

    The Audio-Technica AT8116 is a small black foam windscreen that's designed for use with AT803, AT831 microphones (sold separately), and fits Audio-Technica Case Style: M1 (sold separatetly ).
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    In Stock
    Audio-Technica AT8531 Replacement power module

    Audio-Technica AT8531 Replacement power module

     Power module with on/off/roll-off switch and XLR-style output connector for the AT841A/ AT851A/ AT853A microphones.
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    Usually ships in 6-10 business days.
    Audio-Technica AT8444  Mount for Pro 7A

    Audio-Technica AT8444 Mount for Pro 7A

    Mounts small-diameter (10 mm) microphone to acoustic guitar. Fits Audio-Technica Case Style(s): M1
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    Usually ships in 6-10 business days.
    WindTech 1100-BLACK Microphone Windscreen (Black)

    WindTech 1100-BLACK Microphone Windscreen (Black)

    Since 1976, WindTech has manufactured the highest quality American made microphone windscreens on the market. They are available in  25  brilliant colors, and a wide variety of shapes and sizes to fit most popular microphones. ...
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    Usually ships in 6-10 business days.
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