Audio-Technica U891RCB Cardioid Condenser Boundary Microphone with Local or Remote Switching, RGB LED & Integral Power Module, Phantom Power Only, Black

SKU: ATU891RCB MFR: U891RCB
Earn VIP Reward Points

Key Features

  • Capture pristine audio with this Audio-Technica boundary microphone's exceptional sound quality.
  • Enjoy versatile connectivity with the included TA5F cable, ensuring seamless integration with your setup.
  • The durable design of this cardioid condenser microphone guarantees long-lasting, reliable performance.
  • Achieve focused sound pickup with the cardioid polar pattern, ideal for clear speech and minimal noise.
  • Benefit from a wide 20-20,000 Hz frequency response, capturing every nuance of your audio source.
  • Experience low noise recordings thanks to the microphone's high signal-to-noise ratio for professional results.
See More Product Details
Special Order?Estimated to Ship: 08/16/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

1 Year

$39.99

2 Year

$69.99

3 Year

$79.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Audio-Technica U891RCB Specifications

  • Color

    Black

  • Element

    Fixed-charge back plate, permanently polarized condenser

  • Polar Pattern

    Cardioid

  • Frequency Response

    20-20,000 Hz

  • Low Frequency Roll-Off

    80 Hz, 18 dB/octave

  • Open Circuit Sensitivity

    -34 dB (19.9 mV) re 1V at 1 Pa

  • Impedance

    50 ohms

  • Maximum Input Sound Level

    130 dB SPL, 1 kHz at 1% T.H.D.

  • Dynamic Range (Typical)

    104 dB, 1 kHz at Max SPL

  • Signal-To-Noise Ratio

    68 dB, 1 kHz at 1 Pa, A-weighted

  • Phantom Power Requirements

    11-52V DC, 9.3 mA

  • Switches

    Activation: on/off
    Switch function: touch on/off, momentary on, momentary off
    Control: local, remote, LED remote
    LED Color: mic on, mic off
    Flat, roll-off

  • Output Connector

    Microphone: TB3M-type
    Cable: Unterminated

  • Cable (L x Diameter)

    25.0' x 0.13" (7.6m x 3.2mm), 5-conductor shielded cable (2 conductors under shield; 3 control wires outside shield); TA5F-type connector at microphone end, output end stripped and tinned for connection to electronic device

  • Optional Interchangeable Elements

    UE-H hypercardioid (100 Degree )
    UE-O omnidirectional (360 Degree )

  • Accessory Furnished

    Soft protective pouch

  • Dimensions (H x W x D)

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

  • Weight

    8.9 oz (253g)

  • UPC Code

    4961310146641

About Audio-Technica U891RCB

A wide-range condenser microphone with a cardioid polar pattern, the U891RCb is equipped with local and remote switching options. Locally, the microphone's touch-sensitive capacitive-type user switch can be set to three operating modes: touch-on/touch-off, press to talk, and press to mute.

For enhanced control in conference and boardroom installations, the unit's external contact closure capability allows a user to trigger an external device - a camera, for instance - from the microphone's user switch. The phantom-powered mic is also equipped with an 80 Hz low-cut UniSteep filter to reduce pickup of low-frequency ambient noise. Its two-state RGB LED status indicator can be controlled remotely.

UniGuard innovations offer unsurpassed immunity from radio frequency interference; additional interchangeable elements are available separately in hypercardioid and omnidirectional polar patterns; a unique PivotPoint rotating connector changes the cable exit point - no tools required. The microphone's heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone, while threaded inserts on the bottom of the microphone allow it to be mounted with screws for increased security. The unit's self-contained electronics eliminate the need for an external power module.

Audio-Technica U891RCB Features

  • Cardioid condenser boundary microphone with touch-sensitive capacitive-type user switch
  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • Logic I/O capability permits control of remote devices from the microphone's touch-sensitive capacitive-type user switch
  • The capacitive touch switch can be set to any of three operating modes: touch on/off, touch to talk and touch to mute
  • Integral, phantom-powered, two-state RGB LED indicator, which can be controlled locally or remotely, displays on/off status of microphone
  • 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 Audio-Technica boundary microphone's exceptional sound quality.
  • Enjoy versatile connectivity with the included TA5F cable, ensuring seamless integration with your setup.
  • The durable design of this cardioid condenser microphone guarantees long-lasting, reliable performance.
  • Achieve focused sound pickup with the cardioid polar pattern, ideal for clear speech and minimal noise.
  • Benefit from a wide 20-20,000 Hz frequency response, capturing every nuance of your audio source.
  • Experience low noise recordings thanks to the microphone's high signal-to-noise ratio for professional results.

What's in the box:

  • U891RCB Cardioid Condenser Boundary Microphone (Black)
  • TA5F to Pigtail Microphone Cable (25')
  • Soft Protective Pouch
  • Audio-Technica 2 Year Limited Warranty