Audio-Technica AT831R
Miniature Lavalier Condenser Microphone, Cardioid


The Audio-Technica AT831R clip-on lavalier mic provides crisp, full-sounding voice pickup. The AT831R also excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. The mic is ideal for higher SPL applications, such as pickup for horns with included AT8418 UniMount® microphone instrument mount. Excellent gain before feedback and suppression of background noise. Operates on phantom power only.

Audio-Technica AT831R 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
  • Operates on phantom power only
  • 25' (7.6 m) cable permanently attached to mic, TA3Fconnector at power module
  • RoHS compliant - free from all substances specified in the EU directive on hazardous substances
    Audio-Technica AT831R Specifications:
    • Element:  Fixed-charge back plate, permanently polarized Condenser
    • Polar Pattern:  Cardioid
    • Frequency Response:  40 Hz - 16 kHz
    • Low Frequency Roll-Off:  80 Hz, 18 dB/octave
    • Open Circuit Sensitivity:  -42 dB (7.9 mV) re 1V at 1 Pa
    • Impedance:  250 ohms
    • Maximum Input Sound Level:  141 dB SPL, 1 kHz at 1%T.H.D.
    • Signal to Noise Ratio:  65 dB, 1 kHz at 1 Pa
    • Dynamic Range (Typical):  112 dB, 1 kHz at Max. SPL
    • Phantom Power Requirements:  11 - 52V, 2 mA typical
    • Switch:  Flat, roll-off
    • Weight (microphone):  0.1 oz (2.8 g)
    • Weight (power module):  2.9 oz
    • Dimensions (microphone):  0.98" long, 0.40" diameter
    • Dimensions (power module):  3.66" long, 0.74" diameter
    • Output Connector:  Integral 3-pin XLRM-type (power module)
    • Included Accessories:
      • AT8116 foam windscreen
      • AT8418 UniMount® instrument mount
      • AT8417 clothing clip
      • AT8444 guitar adapter
      • AT8538 power module
      • Protective Carrying Case
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