Overview
Audio-Technica AT831b Miniature Cardioid Condenser Lavalier Microphone
This clip-on lavalier mic provides crisp, full-sounding voice pickup. The Audio-Technica AT831B also excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. The mic is ideal for higher SPL applications. Excellent gain before feedback and suppression of background noise. It operates on a battery/phantom power module.
Features
- Provides crisp, full-sounding voice and instrument pickup
- Excellent gain before feedback and suppression of background noise
- Also excels in acoustic guitar applications with included guitar adapter (wired configuration)
Includes
- Clothing clip
- AT8444 instrument adapter
- AT8531 power module
- AT8116 windscreen
- Battery
- Protective carrying case
Specifications / Documents
- Element: Fixed-charge back plate, permanently polarized condenser
- Polar Pattern: Cardioid
- Frequency Response: 40 - 16,000Hz
- Low Frequency Roll-Off: 80Hz, 18dB/octave
- Open Circuit Sensitivity: Phantom: -44dB (6.3mV) re 1V @ 1Pa; Battery: -46dB (5.0mV) re 1V @ 1Pa
- Impedance: Phantom: 200Ω; Battery: 270Ω
- Maximum Input Sound Level: Phantom: 135dB SPL, 1kHz @ 1% T.H.D.; Battery: 121dB SPL, 1kHz @ 1% T.H.D.
- Dynamic Range (typical): Phantom: 106dB, 1kHz @ Max SPL; Battery: 92dB, 1kHz @ Max SPL
- Signal-To-Noise Ratio: 65dB, 1kHz @ 1Pa
- Phantom Power Requirements: 11 - 52V DC, 2mA typical
- Battery Type: 1.5V AA/UM3
- Battery Current/Life: 0.4mA/1200 hours typical (alkaline)
- Switch: Off, on-flat, on-roll-off
- Weight (Microphone): 0.1oz
- Weight (Power Module): 4.9oz
- Dimensions (Microphone): 0.98" long, 0.40" diameter
- Dimensions (Power Module): 3.31" H x 2.48" W x 0.87" D
- Output Connector (Power Module): Integral 3-pin XLRM-type
- Cable: 6ft long (permanently attached to microphone), 0.10" diameter, 2-conductor, shielded cable with TA3F-type connector
Audio-Technica Case Style: M1
