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Audio-Technica AT831b Miniature Cardioid Condenser Lavalier Microphone
  • Audio-Technica AT831b Miniature Cardioid Condenser Lavalier Microphone
  • Audio-Technica AT831b Miniature Cardioid Condenser Lavalier Microphone
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Audio-Technica AT831b Miniature Cardioid Condenser Lavalier Microphone

Manufacturer: Audio-Technica

Item #: AT831B   •   MFG #: AT831B


Our Price:$199.00

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Availability: Direct Ship From Manufacturer
Item ships directly from the manufacturer. Normal delivery time is 2-7 business days and is subject to manufacturer availability. Need it sooner? Call 800-522-2025, or email Customer Service for expedited delivery options.
  • 2 - 7 Day Normal Delivery Time - Faster Shipping Options at Checkout or Call Us.



This clip-on lavalier mic provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar. 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.

  • 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' (1.8 m) cable permanently attached to mic, TA3F connector at power module
  • Specifications

    • ELEMENT: Fixed-charge back plate, permanently polarized condenser
    • POLAR PATTERN: Cardioid
    • FREQUENCY RESPONSE: 40-18,000 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 (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 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
  • Item Includes

    • Clothing clip
    • AT8444 instrument adapter
    • AT8531 power module
    • AT8116 windscreen
    • battery
    • protective carrying case

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