Audio-Technica AT831CT4
Lavalier Cardioid Microphone withTA4F Connector for Shure Wireless Systems


The Audio-Technica AT831CT4 clip-on lavalier mic provides crisp, full-sounding voice pickup. The AT831CT4 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. Excellent gain before feedback and suppression of background noise. This microphoe operates on phantom power only and is compatible with all Shure Wireless systems using a TA4F type connector.

Audio-Technica AT831CT4 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
  • 1.4 m (55") cable permanently attached to mic, TA4F connector at power module
  • RoHS compliant—free from all substances specified in the EU directive on hazardous substances

Audio-Technica AT831CT4 Specifications:

  • Element:  Fixed-charge back plate, permanently polarized condenser
  • Polar Pattern:  Cardioid
  • Frequency Response:  40 Hz - 16 kHz
  • Low Frequency Rolloff:  80 Hz, 18 dB/octave
  • Open Circuit Sensitivity:  -42 dB (7.9 mV) re 1V at 1Pa
  • 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):  0.1 oz (2.8 g)
  • Weight (Power Module):  2.9 oz (81 g)
  • Dimensions (Microphone):  0.98" (25.0 mm) long, 0.40"(10.2 mm) diameter
  • Dimensions (Power Module):  3.66" (92.9 mm) long,0.74" (18.9 mm) diameter
  • Output Connector (Power Module):  Integral 3-pin XLRM-type
  • Cable: 1.4m (55") long (permanently attached to microphone), 3.2 mm (0.13") diameter, 2-conductor, shielded cable with TA4F-type connector
  • Included Accessories:
    • Clothing clip
    • AT8444 guitar adapter
    • AT8538 remote power module
    • AT8116 windscreen
    • Protective Carrying Case
      • Audio Technica Case Style:  M1
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