Audio Technica AT831B
The Unipoint is the first and still the best miniature condenser installed-sound microphones on the market. The AT831b is a clip-on lavalier mic that excels in acoustic guitar applications. It is essentially the same mic as the AT831R the differences being that the AT831b has both battery and phantom power, and a 6' cable.
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Standard Features
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| Dynamic Range (Typical) | PHANTOM: 106 dB, 1 kHz at Max. SPL BATTERY: 92 dB, 1 kHz at Max. SPL |
| Element | Condenser |
| Frequency Response | 40 - 20,000 Hz |
| 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. |
| Open Circuit Sensitivity | PHANTOM: -44 dB (6.3 mV) re 1V at 1 Pa BATTERY: -45 dB (5.6 mV) re 1V at 1 Pa |
| Phantom Power Requirements | 9 - 52V, 2 mA typical |
| Polar Pattern | Cardioid |
| Signal to Noise Ratio | 65 dB, 1 kHz at 1 Pa |
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