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Omnidirectional Condenser Boundary Microphone

U.S. Two-Year Limited End-User Warranty

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.

  • Boundary Microphone
  • Surface Microphone

  • Overview
  • Features
  • Specifications
  • Downloads
  • Reviews
  • Q & A

  • Overview

    The U841R delivers exceptionally intelligible audio reproduction in a super-compact, low-profile design. Equipped with UniGuard® RFI-shielding technology, this omnidirectional condenser boundary microphone is designed for clear, highly intelligible sound quality in surface-mount applications. The phantom-powered U841R is equipped with self-contained electronics, eliminating the need for an external power module.
  • Features

    • Designed for surface-mount applications where highly intelligible sound quality is required

    • Small-diameter omnidirectional capsule near boundary eliminates phase distortion and delivers clear, high-output performance

    • Superior off-axis rejection for maximum gain before feedback

    • UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)

    • Self-contained electronics eliminate need for external power module

    • Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone

    • Low-profile design with low-reflectance finish for minimum visibility

  • Specifications

    ELEMENTFixed-charge back plate, permanently polarized condenser
    POLAR PATTERNOmnidirectional in hemisphere above mounting surface
    LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave
    OPEN CIRCUIT SENSITIVITY–35 dB (17.7 mV) re 1V at 1 Pa
    IMPEDANCE200 ohms
    MAXIMUM INPUT SOUND LEVEL130 dB, 1 kHz at 1% T.H.D.
    DYNAMIC RANGE (typical)105 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO69 dB, 1 kHz at 1 Pa
    WEIGHT (MICROPHONE)84 g (3.0 oz)
    DIMENSIONS (MICROPHONE)65.0 mm (2.56") diameter,
    15.1 mm (0.59") maximum height
    CABLE7.6 m (25.0') long, 3.2 mm (0.13") diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors
    ACCESSORY FURNISHEDSoft protective pouch
    Click on the chart to view the larger image
    Polar Pattern
    Polar Pattern
    Frequency Response
    Frequency Response

  • Downloads

    U841R Submittal Sheet (pdf 226.60 KB)
  • Reviews

  • Q & A

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    1 Question | 1 Answer
    Displaying question 1
    • Q:

      Not sure how to plug this mircrophone in. Where it can plug into? Handycam, possibly? 1/4 inch?
      Asked on 1/8/2018 by Diana from CO

      1 answer

      • Staff Reviewer


        Thank you for your inquiry. This will only work on xlr inputs that provide phantom power. You will not be able to connect it directly the camera.

        Answered on 1/19/2018 by AudioSolutionsManager from Audio-Technica U.S., Inc.
    Displaying question 1

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