U891Rx

Cardioid Condenser Boundary Microphone with Switch

MSRP* US$367.00
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


    Designed to deliver easy, flexible control in conference and boardroom installations, the versatile U891R cardioid condenser boundary microphone features an activation switch that can be set to three modes: press-on/press-off, press to talk, and press to mute. The phantom-powered microphone is equipped with a unique PivotPoint® rotating output connector and an LED status indicator. UniGuard® innovations offer unsurpassed immunity from radio frequency interference; interchangeable elements are available in cardioid, hypercardioid and omnidirectional polar patterns; an 80 Hz low-cut UniSteep® filter reduces pickup of low-frequency ambient noise. The microphone’s heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone. The unit’s self-contained electronics eliminate 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

    • An activation switch can be set to any of three operating modes: “touch-on/ touch-off,” “touch-to-talk” and “touch-to-mute”

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

    • Superior off-axis rejection for maximum gain before feedback

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

    • 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

    • Improved switch design

    • Available in two colors: black (U891Rx) and white (U891RWx)

  • Specifications

    ELEMENTFixed-charge back plate, permanently polarized condenser
    POLAR PATTERNHalf-cardioid
    (cardioid in hemisphere above mounting surface)
    FREQUENCY RESPONSE30-20,000 Hz
    LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave
    OPEN CIRCUIT SENSITIVITY–34 dB (19.9 mV) re 1V at 1 Pa
    IMPEDANCE200 ohms
    MAXIMUM INPUT SOUND LEVEL130 dB SPL, 1 kHz at 1% T.H.D.
    DYNAMIC RANGE (typical)104 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO68 dB, 1 kHz at 1 Pa
    PHANTOM POWER REQUIREMENTS11-52V DC, 4 mA typical
    SWITCHESActivation: on/off;
    Switch function: press on/off,
    momentary on, momentary off;
    Flat, roll-off
    WEIGHT264 g (9.3 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-O omnidirectional (360°)
    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

    U891Rx & U891RWx Submittal Sheet (pdf 340.14 KB)
    U891Rx & U891RWx Specification Sheet (pdf 429.21 KB)
    Optional Windscreens / Mounts
  • Reviews

  • Q & A

    (1 Question : 1 Answer)

    Product Q&A

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    When i kill the phantom power i would like all mics to default to muted when power is applied again.
    Age: 35-44
    User Type: Live Sound
    Experience: Pro
     
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    Answers

    Answer: 
    Thank you for your inquiry. The microphone is OFF when powered up (if phantom power has been off for at least 15 seconds) when in the Touch ON/OFF mode.

    The microphone is ON when powered up when in the Momentary OFF mode.

    The microphone is OFF when powered up in the Momentary ON mode.
    Age: 55-65
    Experience: Pro
    4 months, 2 weeks ago
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    Stow, OH
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