Audio-Technica AT831R Cardioid Condenser Lavalier Microphone

Sku #275065000000000

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Provides crisp, full-sounding voice pickup and it's effective for acoustic guitars and horns too.

The AT831R also excels as an instrument mic, especially for pickup of acoustic guitar with the included AT8444 guitar adapter. The mic is ideal for higher SPL applications, such as pickup for horns with the included AT8418 UniMount microphone instrument mount. Excellent gain before feedback and suppression of background noise. Operates on phantom power only.

  • 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
  • 13' (4.0 m) cable permanently attached to mic, TA3F connector at power module

Order today and clip on pro quality sound.


AT831R Cardioid Condenser Lavalier Microphone Specifications:

  • Element: Fixed-charge back plate, permanently polarized condenser
    Polar pattern: Cardioid
    Frequency response: 40-16,000 Hz
    Low frequency roll-off: 80 Hz, 18 dB/octave
    Open circuit sensitivity: ”42 dB (12.5 mV) re 1V at 1 Pa
    Impedance: 250 ohms
    Maximum input sound level: 141 dB SPL, 1 kHz at 1% T.H.D.
    Dynamic range (typical): 112 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
    Switch: Flat-roll-off
    Weight (microphone): .01 oz. (2.8 g)
    Weight (power module): 2.9 oz. (81 g)
    Dimensions (microphone): 0.98" (24.8 mm) long, 0.40" (10.2 mm) diameter
    Dimensions (power module): 3.66" (92.9 mm) long, .74" (18.9 mm) diameter
    Output connector (power module): Integral 3-pin XLRM-type
    Cable: 25.0' (7.6 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
    Accessories furnished: AT8417 clothing clip; AT8418 UniMount microphone instrument mount; AT8444 guitar adapter; AT8538 remote power module; AT8116 windscreen; protective carrying case
    Audio-Technica case style: M1
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Audio-TechnicaAT831R Cardioid Condenser Lavalier Microphone

(based on 1 review)

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Reviewed by 1 customer

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our standard for 18 years


from Central Michigan


  • House of Worship
  • Presentations


    Best Uses

      Comments about Audio-Technica AT831R Cardioid Condenser Lavalier Microphone:

      This is our standard for lavaliers for worship and conferences and has been for over 18 years. AT is very reasonable when providing non-warranty service, unlike the competition who charge way too much.

      • What best describes the environment the product was used in?:
      • Expert
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      • House of Worship
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