Audio-Technica AT831R Cardioid Condenser Lavalier Microphone

SKU: ATAT831R MFR: AT831R
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Key Features

  • Capture crystal-clear audio with this Audio-Technica lavalier microphone for interviews.
  • Achieve professional sound quality using this cardioid condenser microphone's wide frequency response.
  • Enjoy versatile mounting options with included clips for secure, hands-free lavalier use.
  • Minimize unwanted noise with the AT831R's low-frequency roll-off, ideal for broadcast settings.
  • Rely on the durable design and included windscreen for pristine audio, indoors or outdoors.
  • Get consistent power with the included in-line power module for dependable microphone performance.
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Temporarily On Backorder?Expected Availability: 09/2025
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Audio-Technica AT831R Specifications

  • Element

    Fixed-charge back plate, permanently polarized condenser

  • Polar pattern

    Cardioid

  • Frequency response

    40-16000 Hz

  • Low frequency roll-off

    80 Hz, 18 dB/octave

  • Open circuit sensitivity

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

  • Impedance

    250 ohms

  • Maximum input sound level

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

  • Dynamic range (typical)

    112 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

  • Switch

    Flat, roll-off

  • Output connector

    Power module: Integral 3-pin XLRM-type

  • Cable Length

    4.0m / 13.1' (permanently attached to microphone), 3.2mm / 0.13" (Diameter), 2-conductor, shielded cable with TA3Ftype connector

  • Audio-Technica case style

    M1

  • Dimensions

    Microphone: 25.0x10.2mm / 0.98x0.40" (LxDiameter)
    Power Module: 92.9x18.9mm / 3.65x0.74" (LxDiameter)

  • Weight

    Microphone: 2.8g / 0.09oz
    Power module: 81g / 2.85oz

  • UPC Code

    4961310098681

7 Accessories for Audio-Technica AT831R Cardioid Condenser Lavalier Microphone

  • All Accessories (7)
  • Windscreens (2)
  • Windjammers (1)
  • Microphone Accessories (3)
  • Cables & Adapters (1)
Models
Audio-Technica AT831R Cardioid Condenser Lavalier Microphone
$249.00

Temporarily On Backorder

Although this item is temporarily on Backorder, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

Audio-Technica U851RB Cardioid Condenser Boundary Microphone, Black
$259.00

Special Order

Generally ships in 7-14 days, subject to availability

Audio-Technica U851RWB Cardioid Condenser Boundary Microphone, White
$259.00

Special Order

Generally ships in 7-14 days, subject to availability

Polar PatternCardioidCardioidCardioid
ConnectorXLR3MXLR3MXLR3M
SeriesBroadcast & Production--
Mute Switch-NoNo

About Audio-Technica AT831R

Bring your audio recording to the next level with the Audio-Technica AT831R Cardioid Condenser Lavalier Microphone. This compact, clip-on lavalier microphone features a cardioid polar pattern, specifically engineered for superior sound reinforcement, professional recording, television broadcasting, and other high-demand sound pickup applications.

Designed to be discreetly worn on clothing or used as an instrument microphone, the AT831R offers exceptional yet unobtrusive sound pickup. Its wide-range capability ensures clean, accurate audio reproduction with high intelligibility, making it an ideal choice for speakers, presenters, and musicians alike.

Despite its small size, this lavalier microphone doesn't compromise on performance. It operates on 11V to 52V phantom power, delivering consistent, high-quality audio. The cardioid polar pattern provides a 120-degree angle of acceptance, capturing sound from a wide area while minimizing background noise.

The AT831R comes with a 4m (13.1') permanently attached miniature cable, which connects to the included AT8538 power module via a TA3F-type connector. The power module's output is a 3-pin XLRM type connector, offering compatibility with a wide range of audio equipment.

For added flexibility, the power module features a recessed switch that allows you to choose between a flat response or low-frequency roll-off. This is achieved through an integral 80 Hz high-pass UniSteep filter, which helps control undesired ambient noise, ensuring your recordings are clear and crisp every time.

In summary, the Audio-Technica AT831R Cardioid Condenser Lavalier Microphone is a powerful, versatile, and discreet solution for all your sound recording needs.

Audio-Technica AT831R Features

  • Clip-on lavalier mic also excels in acoustic guitar applications
  • Provides crisp, full-sounding voice and instrument pickup
  • Excellent gain before feedback and suppression of background noise
  • Operates on phantom power only
  • 13.1' (4m) cable permanently attached to mic, TA3F connector at power module

Warranty Information

This product has a limited warranty of 60 months.

Key Features

  • Capture crystal-clear audio with this Audio-Technica lavalier microphone for interviews.
  • Achieve professional sound quality using this cardioid condenser microphone's wide frequency response.
  • Enjoy versatile mounting options with included clips for secure, hands-free lavalier use.
  • Minimize unwanted noise with the AT831R's low-frequency roll-off, ideal for broadcast settings.
  • Rely on the durable design and included windscreen for pristine audio, indoors or outdoors.
  • Get consistent power with the included in-line power module for dependable microphone performance.

What's in the box:

  • Audio-Technica AT831R Cardioid Condenser Lavalier Microphone
  • AT8116 Foam Windscreen
  • AT8417 Clothing Clip
  • AT8418 UniMount Microphone Instrument Mount
  • AT8444 Guitar Adapter
  • AT8533 In-Line Power Module
  • Protective Carrying Case
  • Audio-Technica 5 Years Limited Warranty