Audio-Technica U891RbO Omnidirectional Condenser Boundary Microphone with Switch, Black

The Audio-Technica U891RbO Omnidirectional Condenser Boundary Microphone is designed to deliver unparalleled sound capture quality in various professional environments such as conference rooms, boardrooms, and high-stakes broadcast settings. This versatile microphone boasts a touch-sensitive capacitive-type user switch which can be set to three distinct modes: touch on/off, touch to talk, and touch to mute, providing ultimate flexibility and control to the user. The microphone is powered by phantom power and features a unique PivotPoint rotating output connector along with a two-state RGB LED status indicator for easy monitoring.

To ensure superior performance, the U891RbO employs UniGuard innovations to protect against radio frequency interference, making it an excellent choice for high-quality sound reinforcement and professional recording. Designed with a robust, heavy die-cast case and silicone foam bottom pads, it minimizes the coupling of surface vibrations and ensures stability. Additionally, threaded inserts on the bottom of the microphone allow it to be securely mounted with screws, providing added security. The low-profile design with a low-reflectance finish ensures that the microphone remains discrete and optimally functional in any setup.

Key Features

• Omnidirectional 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
• 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 displays on/off status of the microphone
• Superior off-axis rejection for maximum gain before feedback
• PivotPoint rotating output connector allows the 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 an angle of acceptance from 100 to 360 degrees
• UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
• Self-contained electronics eliminate the need for an external power module
• Heavy die-cast case and non-slip silicone foam bottom pads minimize the coupling of surface vibration to the microphone
• Low-profile design with low-reflectance finish for minimum visibility
• Threaded inserts on the bottom of the microphone allow it to be mounted with screws for increased security

Specifications

• 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: 128 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range (typical): 107 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, 9.3 mA
• Switches: Activation: on/off; Switch function: touch on/off, momentary on, momentary off; LED Color: mic on, mic off; Flat, roll-off
• Weight: 253 g (8.9 oz)
• 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: 3-pin XLRM-type
• Cable: 25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM connectors
• Optional Interchangeable Elements: UE-C cardioid (120 deg), UE-H hypercardioid (100 deg)

Package Contents

• Audio-Technica U891RbO Omnidirectional Condenser Boundary Microphone
• Soft protective pouch