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AT831R

Cardioid Condenser Lavalier Microphone


U.S. Five-Year Limited End-User Warranty

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.



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  • Overview
  • Features
  • Specifications
  • Downloads
  • Reviews
  • Q & A

  • Overview


    This clip-on lavalier mic provides crisp, full-sounding voice pickup. The AT831R also excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. The mic is ideal for higher SPL applications. Excellent gain before feedback and suppression of background noise. Operates on phantom power only.

  • 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

    • 4.0 m (13.1') cable permanently attached to mic, TA3F connector at power module

    • RoHS compliant—free from all substances specified in the EU directive on hazardous substances

    • Also available as:
      AT831b – with battery/phantom power module
      AT831c – less power module; includes clothing clip and windscreen only; 10' (3 m) cable, unterminated
      AT831cW – less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak® wireless systems
      AT831cT4 – less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with TA4F-type connector for Shure® wireless systems
      AT831cT5 – less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with TA5F-type connector for Lectrosonics® wireless systems

  • Specifications

    ELEMENTFixed-charge back plate, permanently polarized condenser
    POLAR PATTERNCardioid
    FREQUENCY RESPONSE40-16,000 Hz
    LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave
    OPEN CIRCUIT SENSITIVITY-42 dB (7.9 mV) re 1V at 1 Pa
    IMPEDANCE250 ohms
    MAXIMUM INPUT SOUND LEVEL141 dB SPL, 1 kHz at 1% T.H.D.
    DYNAMIC RANGE (typical)112 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO65 dB, 1 kHz at 1 Pa
    PHANTOM POWER REQUIREMENTS11-52V DC, 2 mA typical
    SWITCHFlat, roll-off
    WEIGHT (MICROPHONE)0.1 oz (2.8 g)
    WEIGHT (POWER MODULE)2.9 oz (81 g)
    DIMENSIONS (MICROPHONE)0.98" (25.0 mm) long,
    0.40" (10.2 mm) diameter
    DIMENSIONS (POWER MODULE)3.66" (92.9 mm) long,
    0.74" (18.9 mm) diameter
    OUTPUT CONNECTOR (POWER MODULE)Integral 3-pin XLRM-type
    CABLE4.0 m (13.1') long (permanently attached to microphone), 3.2 mm (0.13") diameter, 2-conductor, shielded cable with TA3F-type connector
    ACCESSORIES FURNISHEDClothing clip; AT8444 guitar adapter; AT8538 remote power module; AT8116 windscreen; protective carrying case
    AUDIO-TECHNICA CASE STYLEM1
    Click on the chart to view the larger image
    POLAR PATTERN
    POLAR PATTERN
    FREQUENCY RESPONSE
    FREQUENCY RESPONSE


    Conditions

  • Downloads

    AT831R Specification Sheet (pdf 449.87 KB)
    AT831R Submittal Sheet (pdf 372.38 KB)
    Optional Windscreens / Mounts

  • Reviews

    our standard for 18 years

    5

    This is our standard for lavaliers for worship and conferences and has been for over 18 years. AT is very reasonable when providing non-warranty service, unlike the competition who charge way too much.

    Central Michigan

    AT831R Cardioid Condenser Lavalier Microphone

    5.0 1

    0.0

  • Q & A

    Can you get just the cardioid lavalier with connector if we already have the AT8538 power module?

    Shawn

    No, the microphone is not sold separately at this time.

    Brent

    Is it possible to wire this to a 4 pin HRS and use with AT wireless transmitters (like the AT831cw)? Aren't they the same mic? If so, what would the connections be?

    David

    Please contact our Service Department at (330) 686-2600 ext 5003 or at service@atus.com for assistance with this.

    ATUS_Specialist3

    I bought this and lost the instrument clip am I able to buy a replacement for it?

    mike

    Yes, the AT8444 Guitar Adapter is available through an Authorized Audio-Technica Dealer. http://www.audio-technica.com/cms/windscreens_mounts/052d3b138016a2b3/index.html

    ATUS_Specialist3

    Is there any chance to have it work on battery like at831b?

    YuZi

    Yes, the only difference between the AT831R and the AT831b is the power module that is included. The AT831b includes the AT8531 power module that can allow the microphone to be powered via battery or phantom power.

    ATUS_Specialist3

    What is the appropriate power supply? Is the AT8801 the correct power supply for this microphone? Will most 48v phantom power supplies with XLR input work with this mic? For example, most mixers have an XLR input with phantom power. Can this just be plugged directly in?

    kazooquestions

    The AT831R comes standard with the AT8538 power module and you may power the microphone via any standard +48v phantom power supply. This may be via the device you are connecting the microphone to or you may use an external supply such as the AT8801. More information may be found at the AT Blog: http://blog.audio-technica.com/audio-solutions-question-week-can-remove-power-module-microphone/

    AudioSolutionsSpec3

    48v supplied on the XLR mic input on a Mixer is fine. Can you plug ithe mic directly into it, as in by-pass the provided AT8538 inline power module? No, you cannot. The power module is not a power SUPPLY. The module requires phantom power to work. Part of what the module does is it buffers (or steps down) phantom power to a much lower bias voltage to power the FET in the microphone capsule. This is typically somewhere between 1.5 and 5 volts. Sending 48 volts directly to the capsule would destroy it.

    AudioSolutionsSpec1

    p/n for 831 (new style) clothing clip? not the wire one, the rotatable one - I need p/n to order

    bennosteve2

    The AT8419 is the clip that pivots. Another clip to check out is the AT8414. To view either of these products, please visit www.audio-technica.com for more info. Additionally, there is an Authorized Dealer Locator on the A-T homepage.

    AudioSolutionsSpec2

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