The Audio-Technica AT831B is a cardioid condenser lavalier microphone delivering crisp, full-bodied voice pickup. Equally effective as an instrument microphone — particularly for acoustic guitar via the included AT8444 adapter — it offers excellent gain before feedback and operates on phantom power (11-52V DC) or a single AA battery.
Cardioid
Polar Pattern
TA3F
Connector
1.8 m
Cable Length · Permanently attached
Phantom / Battery
Power · 11-52V DC or 1.5V AA
Features
Crisp, full-sounding voice pickup as a clip-on lavalier
Doubles as an instrument mic with included AT8444 guitar adapter
Excellent gain before feedback and background noise suppression
UniSteep filter for steep low-frequency attenuation
AT8531 power module with switchable 80 Hz high-pass filter
Operates on phantom power (11-52V DC) or 1.5V AA battery
1.8 m permanently attached cable with TA3F connector
Black finish
NoteA battery does not need to be installed when operating on phantom power.
Specifications
| Model | AT831B |
| Type | Condenser lavalier microphone |
| Polar Pattern | Cardioid |
| Power Requirements | 11-52V DC phantom power or 1.5V AA battery |
| High-Pass Filter | 80 Hz (switchable via AT8531 power module) |
| Cable Length | 1.8 m (permanently attached) |
| Connector | TA3F |
| Included Accessories | AT8531 power module, AT8444 instrument adapter, windscreen, clothing clip |
| Colour | Black |





