Audio-Technica U891Rb Cardioid Condenser Boundary Microphone with Switch, Black

The Audio-Technica U891Rb Cardioid Condenser Boundary Microphone is meticulously engineered to offer reliable, easy-to-use, and flexible control in conference and boardroom settings. This versatile microphone features a touch-sensitive capacitive-type user switch that can be set to three different functions: touch on/off, touch to talk, and touch to mute. Ideal for a range of applications, including high-quality sound reinforcement, professional recording, television, and conferencing, this phantom-powered microphone stands out in its class.

Equipped with a PivotPoint rotating output connector, the U891Rb provides flexibility in cable management, allowing the cable to exit from either the rear or the bottom of the microphone. Enhanced with the UniGuard RFI-shielding technology, this microphone ensures unsurpassed immunity from radio frequency interference. Additionally, interchangeable elements available in hypercardioid and omnidirectional patterns offer further versatility, while the 80 Hz low-cut UniSteep filter effectively reduces the pickup of low-frequency ambient noise.

Durability and stability are also key features of the U891Rb, with its heavy die-cast case and silicone foam bottom pads minimizing surface vibration coupling. The threaded inserts on the bottom of the microphone allow it to be securely mounted with screws for added security. The self-contained electronics eliminate the need for an external power module, streamlining installation and use. Available in a low-profile, low-reflectance black finish, this microphone blends seamlessly into any setup, ensuring minimum visibility.

Key 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
• 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 angle of acceptance from 100 degrees 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 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
• Available in two colors: black (U891Rb) and white (U891RWb)

Specifications

• Element: Fixed-charge back plate, permanently polarized condenser
• Polar Pattern: Cardioid
• Freq. Response: 20-20,000 Hz
• Low Freq. 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, 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-H hypercardioid (100 degrees), UE-O omnidirectional (360 degrees)

Package Contents

• Soft protective pouch