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U851RO

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.



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

  • Overview


    Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851RO offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The omnidirectional microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements in cardioid and hypercardioid polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851RO is equipped with self-contained electronics, eliminating the need for an external power module.
  • Features


    • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations

    • Low-profile element provides uniform omnidirectional polar pattern with 360º acceptance angle

    • PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone

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

    • UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality

    • Self-contained electronics eliminate need for external power module

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

    • Heavy die-cast case and non-slip silicone 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
    FREQUENCY RESPONSE30-20,000 Hz
    LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave
    OPEN CIRCUIT SENSITIVITY–31 dB (28.2 mV) re 1V at 1 Pa
    IMPEDANCE200 ohms
    MAXIMUM INPUT SOUND LEVEL132 dB SPL, 1 kHz at 1% T.H.D.
    DYNAMIC RANGE (typical)111 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO73 dB, 1 kHz at 1 Pa
    PHANTOM POWER REQUIREMENTS11-52V DC, 4 mA typical
    SWITCHFlat, roll-off
    WEIGHT262 g (9.2 oz)
    DIMENSIONS108.0 mm (4.25") maximum length,
    84.0 mm (3.31") maximum width,
    23.0 mm (0.91") maximum height
    OUTPUT CONNECTORTB3M-type
    CABLE7.6 m (25.0') long, 3.2 mm (0.13") diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors
    OPTIONAL INTERCHANGEABLE ELEMENTSUE-C cardioid (120°);
    UE-H hypercardioid (100°)
    ACCESSORY FURNISHEDSoft protective pouch
    Click on the chart to view the larger image
    POLAR PATTERN
    POLAR PATTERN
    FREQUENCY RESPONSE
    FREQUENCY RESPONSE



    Conditions
  • Downloads

    U851RO Submittal Sheet (pdf 311.82 KB)
    U851RO Specification Sheet (pdf 400.47 KB)
  • Reviews

  • Q & A

    Is it alright to use it as a studio mic for music recording??

    leon

    Thank you for your inquiry. Absolutely!

    Rick

    Since the introduction of this particular mic, have there been any hardware revisions to the model? If so, any in the last 12 months?

    Edgar

    No there has not.

    Brent