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Audio-Technica

Audio-Technica U851RO UniPoint Series Omnidirectional Boundary Microphone - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available.

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Brand New ConditionMore InfoThis product is in the box as received from the manufacturer and comes with the original warranty.

  • 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 360° 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

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.

Impedance: 200 ohms
Frequency Response: 30-20,000 Hz
Low Frequency Roll-Off: 80 Hz, 18 dB/octave
Open Circuit Sensitivity: -31 dB (28.2 mV) re 1V at 1 Pa
Maximum Input Sound Level: 132 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range (typical): 111 dB, 1 kHz at Max SPL
Signal-to-noise ratio: 73 dB, 1 kHz at 1 Pa
Phantom Power Requirements: 11-52V DC, 4 mA typical
Switch: Flat, roll-off