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Average Price: $223
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Based on price data from 5 merchants for "Audio-Technica AT831B Mini Uni-Directional Condenser Lavelier Microphone". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
The Audio-Technica AT831B Mini Uni-Directional Condenser Lavalier Microphone is a versatile and discreet tool for any musician or audio engineer. This compact microphone is not only perfect for vocal applications but also excels in capturing the subtle nuances of acoustic instruments such as guitars. Thanks to its cardioid polar pattern, the AT831B effectively minimizes feedback and background noise, making it ideal for high-SPL environments where clarity is paramount. Whether you're on stage, in a studio, or recording in the field, this microphone ensures your audio is captured with precision and depth.
The AT831B offers flexible power options, operating on either phantom power or a standard 1.5V AA battery. Its robust design includes a 6-foot cable that seamlessly connects to the included power module, providing hassle-free setup and usage. The microphone also features a switchable 80 Hz bass roll-off, allowing you to tailor your sound to specific recording needs. Additionally, the AT831B comes with a range of accessories, including a windscreen, clothing clip, instrument adapter, and protective case, ensuring you're prepared for any recording scenario.
Key Features:
- Cardioid polar pattern for effective feedback minimization
- Frequency response: 40Hz-20kHz
- Operates on phantom power or 1.5V AA battery
- Includes switchable 80 Hz bass roll-off
- 6-foot cable with TA3F connector
- Comes with AT8531 power module, AT8417 clothing clip, and AT8444 instrument adapter
- Includes AT8116 windscreen and protective carrying case
Product specs
| Microphone Type | Condenser |
| Connector | XLR |
| Polar Pattern | Cardioid |
| Frequency Response | 40Hz-18kHz |
| Max SPL | 135dB (Phantom), 121dB (Battery) |
| Signal to Noise Ratio | 65dB |
| Output Impedance | 200 ohms (Phantom); 270 ohm (Battery) |
| Cable Length | 6' |
| Weight | 0.1 oz. (Mic), 4.9 oz. (Power Module) |
FAQs
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What is the primary application for the Audio-Technica AT831B Lavalier Microphone?
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The Audio-Technica AT831B is primarily used as a clip-on lavalier microphone for capturing crisp and full-sounding vocals, but it also excels in picking up acoustic guitar sounds.
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Does the Audio-Technica AT831B require phantom power to operate?
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The AT831B can operate on both phantom power and battery power, offering flexibility for different recording setups.
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What is the polar pattern of the Audio-Technica AT831B Lavalier Microphone?
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The AT831B features a cardioid polar pattern, which helps reduce pickup of sounds from the sides and rear, focusing on the sound source directly in front of the microphone.
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Can the Audio-Technica AT831B be used for high sound pressure level environments?
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Yes, the AT831B can handle a maximum sound pressure level of 135dB when using phantom power, making it suitable for louder environments.
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What accessories are included with the Audio-Technica AT831B Lavalier Microphone?
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The AT831B includes a foam windscreen, clothing clip, instrument adapter, power module, battery, and a protective case.
Videos
Michael Sherlock
Audio Technica AT831b Review
Reviews
PROS
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Delivers full natural sound for acoustic instruments
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Simple installation and operation with battery or phantom power
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Excellent clarity and frequency response for diverse instruments
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Long-lasting durability, even after years of heavy use
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High-quality sound at an affordable price point
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Includes flexible universal direction mic clip
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Ideal for video interviews and acoustic guitar recording
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Versatile use across musical and video recording applications
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Crisp highs and balanced lows and mids
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Heavy-duty power module ensures reliability
CONS
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Belt clip integrity diminishes with heavy use
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Sensitive to noise handling; not ideal for hidden placements
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Limited availability of adapter clips for some instruments
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Windshield durability is lacking
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Not wireless, which limits some applications
Critic Reviews
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