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Product 270503

Audio-Technica U891R Boundary Microphone with Switch   

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The Audio-Technica phantom-powered U891R Boundary Microphone features a touch-sensitive on/off switch that can be set to three modes: press-on/press-...Read More

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OVERVIEW

Designed to deliver easy, flexible control in conference and boardroom installations.

The Audio-Technica phantom-powered U891R Boundary Microphone features a touch-sensitive on/off 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 80Hz 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
  • Ultra-quiet electronic 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 silicon foam bottom pads minimize coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance finish for minimum visibility
SPECIFICATIONS

U891R Boundary Microphone with Switch

  • ELEMENT: Fixed-charge back plate, permanently polarized condenser
    POLAR PATTERN: Half-cardioid (cardioid in hemisphere above mounting surface)
    FREQUENCY RESPONSE: 30-20,000Hz
    LOW FREQUENCY ROLL-OFF: 80Hz,
    18dB/octave
    OPEN CIRCUIT SENSITIVITY: ”34dB (19.9 mV) re 1V at 1 Pa
    IMPEDANCE: 200 ohms
    MAXIMUM INPUT SOUND LEVEL: 130dB SPL, 1kHz at 1% T.H.D.
    DYNAMIC RANGE (TYPICAL): 104dB, 1kHz at Max SPL
    SIGNAL-TO-NOISE RATIO: 68dB, 1kHz at 1 Pa
    PHANTOM POWER REQUIREMENTS: 11-52V DC, 4 mA typical
    SWITCHES: Touch-sensitive control: on/off; Switch function: touch on/off, momentary on, momentary off; Flat, roll-off
    WEIGHT: 9.3 oz (264 g)
    DIMENSIONS: 4-1/4" (108.0mm) long, 3.31" (84.0mm) maximum width, 0.91" (23.0mm) height
    OUTPUT CONNECTOR: TB3M-type
    CABLE: 25' (7.6m) long, 0.13" (3.2mm) diameter, 2-conductor, shielded cable withTA3F and XLRM-type connectors
    OPTIONAL INTERCHANGEABLE ELEMENTS: UE-H hypercardioid (100 degrees); UE-O omnidirectional (360 degrees)
    ACCESSORY FURNISHED: Soft protective pouch
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