The Audio-Technica AT831R is a wired cardioid condenser lavalier microphone delivering crisp, full-bodied voice pickup. Also highly effective as an instrument microphone — particularly for acoustic guitar via the included AT8444 adapter — it handles high SPL sources with excellent gain before feedback. Supplied with the AT8538 phantom-only power module featuring a switchable 80 Hz high-pass filter.
Polar Pattern
Cardioid
Connector
TA3F
Cable Length
4.0 m
Permanently attached
Power
Phantom Only
Features
✓
Crisp, full-sounding voice pickup as a clip-on lavalier
Crisp, full-sounding voice pickup as a clip-on lavalier
✓
Doubles as an instrument mic with included AT8444 guitar adapter
Doubles as an instrument mic with included AT8444 guitar adapter
✓
Ideal for higher SPL applications
Ideal for higher SPL applications
✓
Excellent gain before feedback and background noise suppression
Excellent gain before feedback and background noise suppression
✓
AT8538 phantom-only power module with 80 Hz high-pass filter
AT8538 phantom-only power module with 80 Hz high-pass filter
✓
4.0 m permanently attached cable with TA3F connector
4.0 m permanently attached cable with TA3F connector
✓
Includes windscreen and clothing clip
Includes windscreen and clothing clip
Specifications
| Model | AT831R |
| Type | Condenser lavalier microphone |
| Polar Pattern | Cardioid |
| Power Requirements | Phantom power only (via AT8538 module) |
| High-Pass Filter | 80 Hz (switchable via AT8538 power module) |
| Cable Length | 4.0 m (permanently attached) |
| Connector | TA3F |
| Included Accessories | AT8538 power module, AT8444 instrument adapter, windscreen, clothing clip |











