Audio Technica AT831B Minature Cardioid Mic

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This mic is designed to make close up voice and instrument pickup clear and crisp.

Specifically designed to solve problems in professional video and broadcast applications. The AT831B's specially tailored response assures crisp, natural voice quality in a small, unobtrusive package, while the cardioid pickup pattern of the AT831B reduces ambient noise pickup for improved performance sound isolation. Powered by a single 1.5V "AA" type battery, or by 9-48V phantom power, with a cable to the belt module which also includes an on/off switch for use when battery powered


* Clip-on lavalier mic also excels in acoustic guitar applications
* Provides crisp, full-sounding voice and instrument pickup
* Operates on battery or phantom power
6' (1.8 m) cable permanently attached between microphone and power module


* Element: Condenser
* Phantom Power Requirements: 9 - 52V, 2 mA typical
* Polar Pattern: Cardioid
* Battery Type: 1.5V AA/UM3
* Frequency Response: 40 - 20,000 Hz
* Battery Current/Life: 1 mA/1000 hours typical
* Open Circuit Sensitivity: -45 dB (5.6 mV) re 1V at 1 Pa
* Switch: Off/on-flat/on-roll-off , Off battery only
Impedance: 200 ohms
* Low-frequency Roll-off 150 Hz, 6 dB per octave
* Maximum Input Sound Level: 126 dB SPL, 1 kHz at 1% T.H.D.
* Weight: 0.1 oz (2.8 g)
* Signal To Noise Ratio: 65 dB, 1 kHz at 1 Pa
* Power Module: In-line
* Dynamic Range :(Typical) 97 dB, 1 kHz at Max. SPL
* Output Connector: XLRM-type (power module)

Additional Information

ManufacturerAudio Technica
Product ConditionNew

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