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Audio  »  Microphones Wired  » Audio Technica

Audio Technica AT831B Cardioid Condenser Lavalier Microphone

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Audio Technica AT831B Cardioid Condenser Lavalier Microphone image
Audio Technica
Audio Technica AT831B Cardioid Condenser Lavalier Microphone
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Camcor Item No.215009784
Mfg. Part No.AT831B

Today's Date: April 30, 2025

Audio Technica AT831B Cardioid Condenser Lavalier Microphone

This clip-on lavalier mic provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. It offers excellent gain before feedback and suppression of background noise. An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. It operates on battery or phantom power.

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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 to mic, TA3F connector at power module

    • Specifications

    Specifications

    General
    Element Fixed-charge back plate, permanently polarized condenser
    Polar Pattern Cardioid
    Frequency Response 40-20,000 Hz
    Low Frequency Roll-Off 80 Hz, 18 dB/octave
    Open Circuit Sensitivity Phantom: -44 dB (6.3 mV) re 1V at 1 Pa
    Battery: -45 dB (5.6 mV) re 1V at 1 Pa
    Impedance Phantom: 200 ohms
    Battery: 270 ohms
    Maximum Input Sound Level Phantom: 135 dB SPL, 1 kHz at 1% T.H.D.
    Battery: 121 dB SPL, 1 kHz at 1% T.H.D.
    Dynamic Range (Typical) Phantom: 106 dB, 1 kHz at Max SPL
    Battery: 92 dB, 1 kHz at Max SPL
    Signal-To-Noise Ratio 65 dB, 1 kHz at 1 Pa
    Phantom Power Requirements 11-52V DC, 2 mA typical
    Battery Type 1.5V AA/UM3
    Battery Current / Life 0.4 mA / 1200 hours typical (alkaline)
    Switch Off, on-flat, on-roll-off
    Weight (Microphone) 0.1 oz (2.8 g)
    Weight (Microphone) 0.1 oz (2.8 g)
    Weight (Power Module) 4.9 oz (139 g)
    Dimensions (Microphone) 0.98" (25.0 mm) long
    0.40" (10.2 mm) diameter
    Dimensions (Power Module) 3.31" (84.0 mm) H x 2.48" (63.0 mm) W x 0.87" (22.0 mm) D
    Output Connector (Power Module) Intergral 3-pin XLRM-type
    Cable 6' (1.8 m) long (permanently attached to microphone), 0.10" (2.6 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
    Accessories Furnished AT8417 clothing clip; AT8444 instrument adapter; AT8531 power module; AT8116 windscreen; battery; protective carrying case
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