Audio-Technica PRO42

Miniature Cardioid Condenser Boundary Microphone


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  • Low-profile design for minimum visibility
  • Wide-range condenser element with low-mass diaphragm
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Low-profile design and superior performance.

The PRO 42 from Audio-Technica is a ProPoint Miniature Cardioid Condenser Boundary Microphone, with a low-profile design that assures inconspicuous appearance for surface-mount use in boardroom, school, government, house of worship, and other installed applications. Designed for sound reinforcement, broadcasting, and recording applications, the PRO 42 brings crisp, intelligible audio reproduction to any podium, stage, conference table, and beyond. With a wide-range condenser element and low-mass diaphragm for superior performance, the microphone is equipped with self-contained electronics, eliminating the need for external power modules. The PRO 42’s uniform polar pattern rejects unwanted sounds, and its rugged design and construction ensures years of trouble-free use.


  • Low-profile design for minimum visibility
  • Wide-range condenser element with low-mass diaphragm
  • Uniform polar pattern for maximum rejection of unwanted sound
  • Rugged design and construction for reliable performance
  • 25' cable permanently attached between mic & XLRM-type connector


  • Elements: Fixed-charge back plate, permanently polarized condenser
  • Polar Pattern: Half-Cardioid (cardioid in hemisphere above mounting surface)
  • Frequency Response: 70 Hz - 14 kHz
  • Open Circuit Sensitivity: -38 dB (12.5 mV) re 1V at 1 Pa
  • Impedance: 100 ohms
  • Maximum Input Sound Level: 134 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range (typical): 105 dB, 1kHz at Max SPL
  • Signal-to-Noise Ratio: 65 dB, 1kHz at 1 Pa
  • Phantom Power Requirements: 9-52V DC, 2 mA typical
  • Weight: 1.2 oz
  • Dimensions: 1.44" max width, 2.14" max length, 0.61" height
  • Output Connector: 3-pin XLR-M on cable
  • Cable: 25 ft long, permanently attached

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