Audio-Technica AT AT831B
Miniature Cardioid Condenser Microphone (both battery & Phantom)
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$229.00
AT831b
Miniature Cardioid Condenser Microphone (both battery & Phantom)
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 instrument microphone 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.
Clip-on lavalier mic also excels in acoustic guitar applications
Provides crisp, full-sounding voice and instrument pickup
Operates on battery or phantom power
6' (1.8 m) cable permanently attached to mic, TA3F connector at power module
Included AT8417 clothing clip; AT8444 instrument microphone adapter; AT8531 power module; AT8116 windscreen; battery and protective carrying case
Also available as: AT831R - with phantom-only power module AT831c - less power module; includes clothing clip and windscreen only; 10' (3 m) cable, unterminated AT831cW - less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak® wireless systems
| Element | Condenser |
| Polar Pattern | Cardioid |
| Frequency Response | 40 - 18,000 Hz |
| 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 Battery: 270 |
| 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. |
| Low Frequency Roll Off | 80 Hz, 18 dB/octave |
| Switches | Off, on-flat, on-roll-off |
| 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) |
| Weight | Microphone : 2.8 g (0.1 oz) - Power Module : 139 g (4.9 oz) |
| 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 (on Power Module) |
| 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 Included | AT8417 Clothing clip; AT8444 instrument microphone adapter; AT8531 power module; AT8116 windscreen; battery; protective carrying case |
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