Audio Technica AT831B Features:

• 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' cable permanently attached between mic and power module
• Cardioid polar pattern
• 40Hz-20kHz frequency response
• Open circuit sensitivity: -44dB (phantom), -45dB (battery)
• Low frequency roll-off: 80Hz, 18dB per octave
• Signal to noise ratio: 65dB, 1kHz at 1 Pa
• Includes foam windscreen, clothing clip, instrument adapter, power module, battery, and protective case

Audio Technica AT831B Specifications:

• ELEMENT Fixed-charge back plate, permanently polarized 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: -45 dB (5.6 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 (typical) 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) 0.1 oz (2.8 g)
• WEIGHT (POWER MODULE) 4.9 oz (139 g)
• DIMENSIONS (MICROPHONE) 0.98" (25.0 mm) long,
• 0.40" (10.2 mm) diameter
• DIMENSIONS (POWER MODULE) 3.31" (84.0 mm) H x
• 2.48" (63.0 mm) W x
• 0.87" (22.0 mm) D
• OUTPUT CONNECTOR (POWER MODULE) Integral 3-pin XLRM-type
• CABLE 6' (1.8 m) long (permanently attached to microphone), 0.10" (2.6 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
• ACCESSORIES FURNISHED AT8417 clothing clip; AT8444 instrument adapter; AT8531 power module; AT8116 windscreen; battery; protective carrying case
• AUDIO-TECHNICA CASE STYLE M1

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