Audio-Technica AT831B - Cardioid Lavalier Condenser Microphone

Model #AT831B

Audio technica at831b 1
Audio technica at831b 1
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Packaging Info

Package Weight 1.1 lb
Box Dimensions (LxWxH) 10.3 x 4.3 x 1.7"

General Information

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
Transducer Permanently Polarized Condenser
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)
Output Connectors XLR-3M Type, (from AT8531 Power Module)
Polar Pattern Cardioid
User Reviews
B h photo.34921152
6 April 2017

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.

30 September 2015

I have used multiple microphonic and pickup systems in my guitar playing and nothing reproduces the sound of a guitar quite as good as a microphone. This one performs the task in spades. Clear concise sounds. Separation of tones and musical nuances that make using it a joy to use.

23 March 2012

I bought this for recording and performing with several obscure African instruments (segaba, karimba, and chipendani). These are instruments with very hard to reach "sweet" spots; normal mic technique did not do them justice. Has met all expectations.

B h photo.34921152
16 September 2015

I selected this mic to use with the System 10 Pro , just purchased. Sound for a Presenter ! Very, very Good - Excellent !

B h photo.34921152
19 February 2015

I purchasedd the AT831B to be used as a microphone for live streaming broadcasts. The microphone sounds great and has performed up to expectations.

B h photo.34921152
9 December 2014

I like the clarity. Not quite as compact as I'd hoped, but if you're not trying to hide, it does the job well.

B h photo.34921152
20 October 2014

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.

10 August 2014

Pretty pleased with this mic, although I generally prefer omni lapel mics. It has a nice crisp response, on a range of voices. Something I didn't know, but can affirm now: apparently most condenser mics with both battery and phantom power perform better with phantom.

B h photo.34921152
17 July 2014

Small and out of sight, great quality. Just like The Tuck Pendleton machine: zero defects.

B h photo.34921152
26 April 2013

This extremely small lav delivers great audio, and its diminutive size allows for it to remain virtually unseen in the shot. I highly recommend it for controlled interviews.

Product Highlights
    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
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