Audio-Technica AT831B Cardioid Condenser Lavalier Microphone

Priced: $169.00
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Audio-Technica AT831B Cardioid Condenser Lavalier Microphone -

The Audio-Technica AT831B Cardioid Condenser Lavalier Microphone 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 40Hz to 20kHz 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.

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Audio-Technica case style:M1
Battery current / life:0.4 mA / 1200 hours typical (alkaline)
Battery type:1.5V AA/UM3
Cable Length:1.8m / 6' (permanently attached to microphone), 2.6mm / 0.10" (Diameter), 2-conductor, shielded cable with TA3Ftype connector
Dimensions:Microphone: 25.0x10.2mm / 0.98x0.40" (LxDiameter) Power Module: 84x63.0x22.0mm / 3.30x2.48x0.86" (LxWxD)
Dynamic range (typical):Phantom: 106 dB, 1 kHz at Max SPL Battery: 92 dB, 1 kHz at Max SPL
Element:Fixed-charge back plate, permanently polarized condenser
Frequency response:40-18000 Hz
High Sensitivity:The frequency and sensitivity response of the AT831 result in transparent, pristine audio signal reproduction with low noise floor
Impedance:Phantom: 200 ohms Battery: 270 ohms
Low frequency roll-off:80 Hz, 18 dB/octave
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.
Miniature Capsule:The miniature, unobtrusive capsule allows for easy concealment underneath clothing
Open circuit sensitivity:Phantom: -44 dB (6.3 mV) re 1V at 1 Pa Battery: -46 dB (5.0 mV) re 1V at 1 Pa
Output connector:Power module: Integral 3-pin XLRM-type
Phantom power requirements:11-52V DC, 2 mA typical
Polar pattern:Cardioid
Signal-to-noise ratio:65 dB, 1 kHz at 1 Pa
Switch:Off, on-flat, on-roll-off
Weight:Microphone: 2.8g / 0.09oz Power module: 139g / 4.9oz

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Audio-Technica

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