Audio-Technica U851RBO Omnidirectional Condenser Boundary Microphone with Integral Power Module, Phantom Power Only, Black

SKU: ATU851RBO MFR: U851RBO
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Key Features

  • Capture pristine audio with this omnidirectional condenser boundary microphone for clear sound.
  • Enjoy a wide 20-20,000 Hz frequency response, perfect for detailed sound reproduction in recordings.
  • The U851RBO boundary microphone excels in conference rooms, capturing speech from any direction.
  • With low noise, this condenser microphone ensures clean recordings, ideal for critical applications.
  • Its durable build quality guarantees reliable performance for years, making it a worthwhile investment.
  • Use the included cable for easy connectivity, setting up your boundary microphone has never been easier.
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Special Order?Estimated to Ship: 09/07/2025
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Audio-Technica U851RBO Specifications

  • Color

    Black

  • Element

    Fixed-charge back plate, permanently polarized condenser

  • Polar Pattern

    Omnidirectional

  • Frequency Response

    20-20,000 Hz

  • Low Frequency Roll-Off

    80 Hz, 18 dB/octave

  • Open Circuit Sensitivity

    -31 dB (28.2 mV) re 1V at 1 Pa

  • Impedance

    50 ohms

  • 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, A-weighted

  • Phantom Power Requirements

    11-52V DC, 4.4 mA

  • Switch

    Flat, roll-off

  • Output Connector

    Microphone: TB3M-type
    Cable: 3-pin XLRM-type

  • Cable (L x Diameter)

    25.0' x 0.13" (7.6m x 3.2mm), 2-conductor, shielded cable with TA3F and XLRM connectors

  • Optional Interchangeable Elements

    UE-C cardioid (120 Degree )
    UE-H hypercardioid (100 Degree )

  • Accessory Furnished

    Soft protective pouch

  • Dimensions

    0.91 x 3.30 x 4.25" (23.0 x 83.9 x 108mm)

  • Weight

    8.9 oz (253g)

  • UPC Code

    4961310146702

About Audio-Technica U851RBO

You can elevate your audio recording experience with the U851RBO Omnidirectional Condenser Boundary Microphone, a high-quality, durable, and professional-grade product from the reputable brand, Audio-Technica. This innovative microphone is designed to offer outstanding speech intelligibility and transparent sound quality, making it an ideal choice for a variety of surface-mount applications. Whether you're involved in high-quality sound reinforcement, professional recording, television production, conferencing, or any other demanding sound pickup situation, this reliable microphone is engineered to deliver exceptional performance.

The U851RBO microphone features an omnidirectional polar pattern, which allows it to pick up sound from all directions. This makes it incredibly versatile and useful for capturing audio in a wide range of settings. It's equipped with a PivotPoint rotating output connector, a UniSteep filter, and UniGuard RFI-shielding technology, all of which contribute to its superior sound quality and ease of use.

One of the standout features of this microphone is its interchangeable condenser elements. Available separately, these elements come in cardioid and hypercardioid polar patterns, providing you with the flexibility to adapt to different recording environments and requirements.

The U851RBO microphone is housed in a heavy die-cast case, with silicon foam bottom pads that minimize the coupling of surface vibration to the microphone. This ensures that your audio remains clear and free from unwanted noise. The microphone also features self-contained electronics, eliminating the need for an external power module and making setup a breeze.

For added security, the U851RBO microphone is equipped with threaded inserts on the bottom, allowing it to be securely mounted with screws. This feature ensures that your microphone stays in place, even in the most demanding recording situations.

In summary, the U851RBO Omnidirectional Condenser Boundary Microphone with Integral Power Module is a reliable, professional, and innovative solution for all your audio recording needs. Trust in the quality and durability that Audio-Technica is known for, and experience the difference that a high-quality microphone can make.

Audio-Technica U851RBO Features

  • Omnidirectional condenser boundary microphone
  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • Superior off-axis rejection for maximum gain before feedback
  • PivotPoint rotating output connector allows cable to exit from either the rear or the bottom of the microphone
  • Small-diameter UniPoint element near boundary eliminates phase distortion and delivers clear, high-output performance
  • Available interchangeable elements permit angle of acceptance from 100 Degree to 360 Degree
  • UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • Self-contained electronics eliminate need for external power module
  • 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
  • Threaded inserts on bottom of microphone allow it to be mounted with screws for increased security

Warranty Information

This product has a limited warranty of 24 months.

Product Documents

User Manual

Key Features

  • Capture pristine audio with this omnidirectional condenser boundary microphone for clear sound.
  • Enjoy a wide 20-20,000 Hz frequency response, perfect for detailed sound reproduction in recordings.
  • The U851RBO boundary microphone excels in conference rooms, capturing speech from any direction.
  • With low noise, this condenser microphone ensures clean recordings, ideal for critical applications.
  • Its durable build quality guarantees reliable performance for years, making it a worthwhile investment.
  • Use the included cable for easy connectivity, setting up your boundary microphone has never been easier.

What's in the box:

  • U851RBO Omnidirectional Condenser Boundary Microphone (Black)
  • TA3F to XLR Male Microphone Cable (25')
  • Soft Protective Pouch
  • Audio-Technica 2 Year Limited Warranty