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Audio-Technica U851R Boundary Mic  Black 

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Audio Technica U851R cardioid condenser boundary microphone Featuring breakthrough audio and mechanical design innovations, the phantom-powered U85...Click To Read More About This Product

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Offers outstanding speech intelligibility and transparent sound quality

Audio Technica U851R cardioid condenser boundary microphone

Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint(TM) rotating output connector, UniSteep filter and UniGuard(TM) RFI-shielding technology. It accepts interchangeable condenser elements-available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.

  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, and conferencing
  • 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)
  • 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 silicon foam bottom pads minimize surface vibration to the microphone
  • Low-profile design with low-reflectance finish for minimum visibility

There will be times when no other mic will do. Order today for your mic locker.


U851R Boundary Mic

  • ACCESSORY FURNISHED: Soft protective pouch
    CABLE: 25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors
    DIMENSIONS: 4.25" (108.0 mm) long, 3.31" (84.0 mm) maximum width, 0.91" (23.0 mm) height
    DYNAMIC RANGE (typical): 108 dB, 1 kHz at Max SPL
    ELEMENT: Fixed-charge back plate, permanently polarized condenser
    FREQUENCY RESPONSE: 30-20,000 Hz
    IMPEDANCE: 200 ohms
    LOW FREQUENCY ROLL-OFF: 80 Hz, 18 dB/octave
    MAXIMUM INPUT SOUND LEVEL: 134 dB SPL, 1 kHz at 1% T.H.D.
    OPEN CIRCUIT SENSITIVITY: -34 dB (19.9 mV) re 1V at 1 Pa
    OPTIONAL INTERCHANGEABLE ELEMENTS: UE-H hypercardioid (100); UE-O omnidirectional (360)
    POLAR PATTERN: Half-cardioid (cardioid in hemisphere above mounting surface)
    SIGNAL-TO-NOISE RATIO: 68 dB, 1 kHz at 1 Pa
    SWITCH: Flat, roll-off
    WEIGHT: 9.2 oz (262 g)

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