U891RbO Omnidirectional Boundary Microphone with LED and Local Switch (Black) Product Image

U891RbO Omnidirectional Boundary Microphone with LED and Local Switch (Black)

Product Description

Achieve clear, intelligible speech reproduction and easy local switching with the black Audio-Technica U891RbO, an omnidirectional condenser boundary microphone optimized for surface-mount applications in conference rooms, houses of worship, recording studios, live event venues, and sports arenas. The local touch-sensitive switch offers three modes for customizable control of talk/mute functions, and the microphone's on/off status is indicated by a two-state RGB LED. The high-output condenser element yields a wide frequency response of 20 Hz to 20 kHz, which can be modified via the switchable 80 Hz low-cut filter—ideal for mitigating rumble and low-frequency buildup.

The omnidirectional polar pattern delivers sound pickup from all directions, allowing consistent capture of ambience and multiple sources in the same room. Thanks to the UniGuard RFI-shielding technology, the U891RbO impedes radio frequency interference from sources such as wireless devices, fluorescent lights, air conditioners, and more. It can be powered by 11 to 52 VDC phantom power, so no batteries or external power supplies are required. The rotatable balanced TB3M output connects to the included 25' TA3F to XLR microphone cable, ensuring easy hookup to your mixer, preamplifier, or audio interface.
Analog Performance
Sound Field Mono
Operating Principle Pressure Operated
Capsule Electret Condenser
Circuitry Solid-State
Polar Pattern Omnidirectional
Frequency Range 20 Hz to 20 kHz
Signal-to-Noise Ratio 73 dB A-Weighted
Equivalent Noise Level
Maximum SPL 128 dB SPL
Pad None
Impedance 50 Ohms
Load Impedance
Sensitivity -31 dBV/Pa
Low-Cut Filter 18 dB/Octave @ 80 Hz
Dynamic Range 107 dB
Output Connectors 1 x TB3M
Cable Length 25' / 7.62 m
Operating Current Consumption 9.3 mA
Operating Voltage 11 to 52 V
Operating Temperature
Operating Humidity
Storage Temperature
Dimensions (W x H x D) 3.3 x 0.9 x 4.3" / 83.9 x 23 x 108 mm
Weight 8.92 oz / 253 g
Warranty Length Limited 2-Year Warranty