Audio Technica AT831B Miniature Cardioid Condenser Microphone

Audio Technica AT831B
Audio Technica AT831b

Audio Technica AT831B Miniature Cardioid Condenser Microphone

Product Code: AT831B

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Features
• Clip-on lavalier mic also excels in acoustic guitar applications
• Provides crisp, full-sounding voice and instrument pickup
• Excellent gain before feedback and suppression of background noise
• UniSteep® filter provides a steep low-frequency attenuation
• 6' (1.8 m) cable permanently attached, TA3F connector at power module
• Operates on battery or phantom power

This clip-on lavalier mic AT831b provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. It offers excellent gain before feedback and suppression of background noise. An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. It operates on battery or phantom power.

Element Condenser
Polar Pattern Cardioid
Frequency Response 40 - 20,000 Hz
Low Frequency Roll-Off 80 Hz, 18 dB/octave
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
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 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
Phantom Power Requirements 11-52V DC, 2 mA typical
Battery Type 1.5V AA/UM3
Battery current life 0.4 mA / 1200 hours typical (alkaline)
Switch Off, on-flat, on-roll-off
Weight Microphone: 2.8 g
Power module: 139 g
Dimensions Microphone: 25.0 mm (0.98") long, 10.2 mm (0.40") diameter
Power Module: 84.0 mm (3.31") H x 63.0 mm (2.48") W x 22.0 mm (0.87") D
Output Connector Integral 3-pin XLRM-type
Cable 1.8 m (6') long (permanently attached to microphone), 2.6 mm (0.10") diameter, 2-conductor, shielded cable with TA3F-type connector
Accessories Clothing clip; AT8444 instrument adapter; AT8531 power module; AT8116 windscreen; battery; protective carrying case