Audio-Technica AT831B - Mini Clip-On Mic

Audio-Technica AT831B - Cardioid Lavalier Condenser Microphone

Audio-Technica AT831B - Cardioid Lavalier Condenser Microphone

B&H # AUAT831B MFR # AT831B
Audio-Technica AT831B - Mini Clip-On Mic

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Audio-Technica AT831B overview

  • 1Description

The Audio-Technica AT831B is a miniature cardioid lavalier microphone with a sensitivity and frequency response suitable for professional video, broadcast and sound reinforcement applications. The cardioid polar pattern is effective minimizing off-axis signal, providing high gain-before-feedback while using nearby monitors and speakers.

The wide frequency response of 40Hz to 20kHz enables audio signal to be reproduced with accurate detail and minimal noise at low frequencies. The miniature capsule enables the microphone to be hidden underneath clothing and the included windscreen protects against noise caused by plosive signals and wind.

Miniature Capsule
The miniature, unobtrusive capsule allows for easy concealment underneath clothing.
Cardioid Polar Pattern
The cardioid polar pattern is effective in minimizing audio signal at the off-axis sections of the capsule. This provides high gain-before-feedback response while using nearby monitors and speakers.
High Sensitivity
The frequency and sensitivity response of the AT831 result in transparent, pristine audio signal reproduction with low noise floor.
UPC: 042005309078
In the Box
Audio-Technica AT831B - Cardioid Lavalier Condenser Microphone
  • (AT8417) Clothing Clip
  • (AT8444) Instrument Adapter
  • (AT8531) Detatchable Power Module
  • (AT8116) Foam Windscreen
  • (AA) Battery
  • Protective Carrying Case
  • 1 Year Warranty
  • Table of Contents
    • 1Description

    Audio-Technica AT831B specs

    Transducer Permanently Polarized Condenser
    Polar Pattern Cardioid
    Frequency Response 40 Hz - 20 kHz
    Dynamic Range (Typical) 101 dB, (@ Maximum SPL)
    Signal-to-Noise Ratio 65 dB, (A-Weighted)
    Maximum Input Sound Level 126 dB, (@ 1 kHz 1% THD)
    Power Requirements Phantom: 9 - 52v DC
    Battery: AA (1.5v)
    Output Impedance 200 Ohms
    Output Connectors XLR-3M Type, (from AT8531 Power Module)
    Pad None
    Low Frequency Roll-Off -6 dB / Octave @ 150 Hz
    Applications Vocal, Instrument (Especially Guitar)
    Dimensions Microphone: .98 x .39" (25 x 10 mm) LxDiameter
    Power Module: 3.27 x 2.48 x 0.87" (83 x 63 x 22mm) LxWxD
    Cable: 6' (1.8 m) Long
    Weight Microphone: 0.1 oz. (2.8 g) Less Cable and Accessories
    Power Module: 5.2 oz. (147 g)
    Packaging Info
    Package Weight 1.1 lb
    Box Dimensions (LxWxH) 10.3 x 4.3 x 1.7"

    Audio-Technica AT831B reviews

    AT831B - Mini Clip-On Mic is rated 4.6 out of 5 by 32.
    Rated 5 out of 5 by from A CLASSIC MIC FOR ALL TIME i am a legal video specialist and need a rugged wired mic that rejects background noise and delivers clear crisp speech. I have used the AT831b for nearly 20 years, and they get dropped, abused, yanked and spit on and give many years of good service. Once in a while I have to replace one, but I would never consider anything else for my work. I capture testimony that can never be re-done if anything goes wrong, and no excuses will be accepted. I can't say anything negative about this AT mic, it never disappoints. I haven't used it with a guitar, but I have used it as a musical soloist, and it is great for that too.
    Date published: 2014-10-20
    Rated 4 out of 5 by from Just bought another one I am recording voice between actors in a room with too much air conditioning rumble. The AT831 pick-up pattern has been a good tool for improving the voice-to-rumble ratio on my videos. That means I have to do less post-processing on my audio tracks. The power box seems larger than it needs to be - I run wired using phantom power over the XLR connector, so I don't need the battery. AT could also improve the lapel clip a bit - perhaps make the alligator a bit wider? - so that it is more likely to stay where I put it. I tend to be kinda rough on gear - I've already dropped the microphone capsule a couple of times - but it's surviving so far.
    Date published: 2011-03-16
    Rated 5 out of 5 by from superb quality sound I'm using this microphone as an input on my Zoom H4N handheld audio recorder and am very happy with the quality of the sound I'm getting. I'm also very happy with the level of isolation from background noises that this microphone give me. The microphone and power module come in a smart hard-case which is very welcome when the unit is in my gear bag though the power module is metal and does not come with any slip case so I'm slightly worried about it falling off my interviewee's belts and smashing if it hits a hard-floor.
    Date published: 2010-08-22
    Rated 5 out of 5 by from I love 'em I've owned a pair of these great mics for over ten years and have not had a moment's trouble. They have traveled with me on numerous trips to locations in Africa, Europe, the Caribbean and throughout the United States. The AT831B's are very reliable mainstays of my audio kit
    Date published: 2009-11-15
    Rated 5 out of 5 by from A great and warm sound the sound of this microphone is warm and it has a good presence in the low medium, It's a complementary solution to other more aggressive products of the market. It can be used in noisy conditions. Its construction is robust and the manufacture of very beautiful quality The battery power supply solution is useful
    Date published: 2012-04-02
    Rated 5 out of 5 by from Lav Mic An Excellent Addition The Cardioid Condenser Lavalier Microphone from Audio-Technica has allowed the Patriot League to produce high-quality video features with crisp, clear interviews. The microphone does a great job at singling in on the interviewee so that any background noise will not interfere, even in loud arenas or outdoor venues. It is easy to use and effortless to set up. We will use it with all of our web streaming programming, including feature interviews and periodical online shows.
    Date published: 2010-10-04
    Rated 5 out of 5 by from The Perfect Lav If you're looking for a good lavaliere microphone for interviews or other up-close audio work, look no further. I have used this microphone extensively, from applications ranging from television broadcast to music production, and it always does the trick. I honestly have no reservations about this mic.
    Date published: 2011-03-02
    Rated 5 out of 5 by from Audio-Technica 831B great microphone I purchased this microphone to use on a guitar for live sound. Works great for live and recording. It's quick and easy. It has a warm and natural sound. I would purchase another if needed. As with all AT mics I've owned, great quality and value for the price.
    Date published: 2017-04-06
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