Audio-Technica AT 831b

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Audio-Technica AT 831b

Audio-Technica

AT 831b

4.9 Expert Rating

Product Info

Article Number: 115362
Model: AT 831b
Price: $217.80

* Prices may vary. Check retailer for current pricing and availability.

The AT 831b is a workhorse lavalier – really clean, focused sound, and that included power module is a game-changer for avoiding battery noise. It’s a solid choice for presenters, interviewers, or anyone needing a reliable, discreet vocal mic in a noisy environment, though you’ll want to practice your mic technique to minimize handling noise.

Product Description

  • Audio-Technica AT 831b
  • Condenser lavalier microphone
  • Directional characteristic: Cardioid
  • Frequency range: 40 - 20
  • 000 Hz
  • Switchable 80 Hz bass roll-off
  • Operates with phantom power or battery (1.5 V AA)
  • 2-Wire cable
  • 1.8 m in length
  • TA3F connector

Included in delivery:

  • AT8417 Microphone clip
  • AT8444 Instrument adapter
  • AT8531 Power module
  • AT8116 Wind shield
  • Battery
  • Plastic case
PROS
  • • Excellent off-axis rejection minimizes background noise effectively
  • • The included power module offers clean gain without battery hum
  • • Robust construction; feels durable for stage and field use
  • • Clear, natural vocal reproduction; handles dynamic range well
CONS
  • • Cable is a bit stiff and prone to tangling, requires care
  • • Can be sensitive to handling noise without proper technique
  • • Limited versatility; primarily suited for vocal applications

Product Video

Key Features

Mic Type Condenser
Polar Pattern Cardioid
Frequency Range 40 - 20,000 Hz
Connector TA3F
Cable Length 1.8 m
Weight 46 g

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Frequently Asked Questions

The AT 831b offers a more natural, less processed sound and a more robust build, but the Rode is smaller and more convenient for some users.
While you can run it on a battery, the power module provides significantly cleaner gain and is highly recommended for professional results, especially in challenging acoustic environments.
The included foam windscreen is adequate for light breezes, but a deadcat style windjammer is crucial for outdoor shoots or windy stages to prevent popping and wind noise.

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