Audio Technica AT831B Miniature Cardioid Condenser Microphone
Product Code: AT831B
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 |
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