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Miniature Cardioid Condenser Microphone

AT831R
  • Clip-on lavalier mic provides crisp, full-sounding voice pickup
  • Also excels as an instrument mic, especially for pickup of acousticguitar with included AT8444 instrument adapter
  • Excellent gain before feedback and suppression of background noise
  • UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Operates on phantom power only

    For use as a lavalier, attach AT831R microphone about 150mm below the chin. Anticipate movements that may cause the microphone to rub against or be covered by clothing, and position the microphone to avoid it.



    • audio technica AT831R
  • AT831R Specifications

    Element

    Fixed-charge back plate, permanently polarized condenser

    Polar Pattern

    Cardioid

    Frequency Response

    40 ~ 16,000 Hz

    Open Circuit Sensitivity

    -42 dB (7.9 mV) re 1V at 1 Pa

    Impedance

    250 Ω

    Maximum Input Sound Level

    141 dB SPL, 1 kHz at 1% T.H.D.

    Low Frequency Roll-Off

    80 Hz, 18 dB/octave

    Phantom Power

    11~52V DC, 2 mA typical

    Weight

    Microphone: 2.8 g;
    Power Module: 81 g

    Dimensions

    Microphone: 25.0mm long x 10.2mm diameter;
    Power Module: 92.9mm long x 18.9mm diameter

    Output Connector

    Integral 3-pin XLRM-type

    Cable

    4.0 m long (permanently attached to microphone), 3.2 mm diameter

    Accessories Furnished

    AT8538 power module;
    AT8417 clothing clip;
    AT8444 instrument adapter;
    AT8116 windscreens;
    protective carrying case

    Signal-To-Noise Ratio

    65 dB, 1 kHz at 1 Pa

    Dynamic Range (Typical)

    112 dB 1 kHz at Max SPL

    Switch

    Flat, roll-off

    Download

    audio technica support AT831R.pdf - Operation Manual