Audio-Technica U891RCB Cardioid Boundary Microphone with LED and Local/Remote Switching (Black)

Audio-Technica
S$579.00
S$526.89
Current Stock:
0
SKU:
U891RCB

Achieve clear, intelligible speech reproduction and convenient status switching with the black Audio-Technica U891RCb, a cardioid 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 logic I/O grants remote control of the U891RCb or external devices. The microphone's on/off status is indicated by the 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 cardioid polar pattern delivers directional pickup and enhanced off-axis rejection, allowing reduced ambience and high gain before feedback. Thanks to the UniGuard RFI-shielding technology, the U891RCb 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 TB5M output connects to the included 25' TA5F to pigatil microphone cable, which has stripped and tinned leads for the audio and control conductors.
  • 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, and conferencing
  • 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, or touch to mute
  • For enhanced control in conference and boardroom installations, the U891RCb's external contact closure capability allows the user to trigger an external device such as a camera
  • Integral, phantom-powered, two-state RGB LED indicator, which can be controlled locally or remotely, displays on/off status of microphone
  • Selectable colors for mic off/on status
  • 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
  • Separately available interchangeable elements permit angle of acceptance from 100° to 360°
  • UniGuard RFI-shielding technology offers outstanding rejection of radio-frequency interference (RFI)
  • Switchable 18 dB/octave UniSteep roll-off filter at 80 Hz
  • Self-contained electronics eliminate need for external power module
  • Powered via 11 to 52 VDC phantom power
  • 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
  • Balanced TB5M output connector
  • Includes 25' shielded 5-conductor cable (two conductors under the shield and three conductors outside the shield)—TA5F-type connector at the mic end, stripped and tinned wires at the pigtail end
Key Features
  • For Surface-Mount Applications
  • Local/Remote Switching with RGB LED
  • High-Output Cardioid Condenser Element
  • Reduces Off-Axis Sound Pickup
  • Enhanced Rejection of RFI
  • 20 Hz to 20 kHz Frequency Response
  • Switchable Low-Cut Filter at 80 Hz
  • Rotatable TB5M Output Connector
  • 11 to 52 VDC Phantom Powered
  • Includes 25' TA5F to Pigtail Mic Cable

Technical Specifications

  • 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
  • Maximum Input Sound Level: 130 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range: 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
  • Weight: 253 g (8.9 oz)
  • Cable: 25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 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
  • Dimensions: 0.91" (23.0 mm) H x 3.30" (83.9 mm) W x 4.25" (108.0 mm) D
  • Output Connector:
    • Microphone: TB3M-type
    • Cable: Unterminated
  • Optional Interchangeable Elements:
    • UE-H hypercardioid (100°)
    • UE-O omnidirectional (360°)

What's Included

  • Audio-Technica U891RCb Cardioid Boundary Microphone with LED and Local/Remote Switching (Black)
  • 25' TA5F to Pigtail Microphone Cable
  • Soft Protective Pouch

Warranty: 2 Years