Video Chat with a Pro Audio Expert - Live

Audio-Technica AT831b Cardioid Condenser Lavalier Microphone

BH #AUAT831B • MFR #AT831B
Print
Audio-Technica AT831b Cardioid Condenser Lavalier Microphone
Key Features
  • Clip-On Lavalier Microphone
  • Great on Guitars
  • Full Rich Sound for Vocals & Instruments
  • Frequency Response: 40 Hz to 16 kHz
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.
More Details
In Stock
No Store Display
Free 2-Day Shipping
Protect Your Gear
Add a protection plan from $36.99
Ask an Expert
800-952-1815

Audio-Technica AT831B Overview

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 40 Hz to 16 kHz 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

Audio-Technica AT831B Specs

Transducer
Permanently Polarized Condenser
Polar Pattern
Cardioid
Frequency Response
40 Hz to 16 kHz
Low Frequency Roll-Off
80 Hz, 18 dB/Octave
Sensitivity
Phantom: -44 dB (6.3 mV) re 1 V at 1 Pa
Battery: -46 dB (5.0 mV) re 1 V at 1 Pa
Impedance
Phantom: 200 Ohms
Battery: 270 Ohms
Maximum Input Sound Level
Phantom: 135 dB SPL, 1 kHz at 1% T.H.D.
Battery: 121 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range (Typical)
Phantom: 106 dB, 1 kHz at Max SPL
Battery: 92 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio
65 dB, 1 kHz at 1 Pa
Power Requirements
Phantom Power Requirements: 11 to 52 VDC, 2 mA Typical
Battery
Battery Type: 1.5 V AA/UM3
Battery Current / Life: 0.4 mA / 1200 Hours Typical (Alkaline)
Switch
Off, On-Flat, On-Roll-Off
Output Connectors
Output Connector (Power Module): Integral 3-Pin XLRM-type
Dimensions
Microphone (L x Diam): 1.0 x 0.4" / 25.0 x 10.2 mm
Power Module: 3.3 x 2.5 x 0.9" / 84.0 x 63.0 x 22.0 mm
Cable: 6.0' / 1.8 m Long
Weight
Microphone: 0.1 oz / 2.8 g
Power Module: 4.9 oz / 138.9 g
Packaging Info
Package Weight
1.145 lb
Box Dimensions (LxWxH)
10.35 x 4.45 x 1.75"

Audio-Technica AT831B Reviews

See any errors on this page?
Whatever You Need, We've Got It