
The Audio-Technica AT831 Cardioid Condenser Lavalier Microphone is a versatile, clip-on solution engineered for high-fidelity audio capture. This microphone delivers crisp, full-bodied voice reproduction and performs exceptionally well as an instrument microphone, specifically for acoustic guitars. The cardioid polar pattern ensures superior background noise suppression and high gain before feedback, making it suitable for demanding acoustic environments.
Designed to handle higher Sound Pressure Levels (SPL), the Audio-Technica AT831 maintains clarity in loud applications. The condenser element provides the sensitivity required for professional recording and broadcast tasks. Each unit includes a windscreen to reduce breath and wind noise, along with a clothing clip for secure and discreet placement.
While primarily used for vocal pickup, the AT831 excels in instrument miking. It captures the natural resonance of acoustic guitars with precision. The wired AT831R configuration specifically includes the AT8444 guitar mount to facilitate optimal placement on the instrument.
The Audio-Technica AT831 is available in several specialized configurations to meet various connectivity and power requirements:
| Element | Condenser |
| Polar Pattern | Cardioid |
| Frequency Response | 40 - 16,000 Hz |
| Low Frequency Roll Off | 80 Hz, 18 dB/octave (wired only) |
| Open Circuit Sensitivity | -42 dB (7.9 mV) re 1V at 1 Pa |
| Maximum Input Sound Level | 141 dB SPL, 1 kHz at 1% T.H.D. |
| Dynamic Range | 112 dB, 1 kHz at Max SPL (wired only) |
| Signal-to-Noise Ratio | 65 dB, 1 kHz at 1 Pa |
| Phantom Power Requirements | 11-52V DC, 2 mA typical (wired only) |
| Switches | Off, on-flat, on-roll-off (wired only) |
| Weight | Microphone: 2.8 g (0.1 oz), Power Module: 81 g (2.9 oz) (wired only) |
| Dimensions | Microphone: 25.0 mm (0.98") long, 10.2 mm (0.40") diameter, Power Module: 3.66" (92.9 mm) long (wired only), 0.74" (18.9 mm) diameter |
| Output Connector | Integral 3-pin XLRM-type on Power Module (wired only) |
| Accessories Included | AT8419 clothing clip; AT8444 Instrument Microphone Adapter (wired only); AT8538 remote power module (wired only); AT8116 windscreen; protective carrying case (wired only) |
| Length | 4.4 In. |
|---|---|
| Width | 10.4 In. |
| Height | 2.1 In. |
| Weight | 1.08 lbs |
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