Audio-Technica U891RB Cardioid condenser boundary microphone with switch, RGB LED and integral power module, phantom power only

Product Overview

The Audio-Technica U891RB is a cardioid condenser boundary microphone with a touch-sensitive switch, an RGB LED status indicator, and an integral phantom-power module for conferencing and presentation. Its boundary design sits flat on a table or lectern to capture clear, natural speech, and UniGuard RFI protection guards against interference. This professional boundary microphone is built for installed commercial AV.

Product Description

The Audio-Technica U891RB uses a cardioid polar pattern with a heavy die-cast case and silicon foam bottom pads to minimize surface-vibration pickup. A two-state RGB LED shows the on/off status of the microphone, and the touch-sensitive switch can be set to touch on/off, touch-to-talk, or touch-to-mute.

An 80 Hz UniSteep low-cut filter reduces low-frequency ambient noise, a PivotPoint rotating output connector eases cable dressing, and threaded inserts allow secure screw mounting. Explore more Audio-Technica boundary microphones at Creation Networks.

Key Features

• Cardioid boundary pickup — A cardioid element captures clear, natural speech across a table or lectern.
• RGB LED status — An integral two-state RGB LED indicator shows the on/off status of the microphone.
• Touch switch modes — A touch-sensitive switch supports touch on/off, touch-to-talk, and touch-to-mute for flexible control in meetings.
• Vibration isolation — Heavy die-cast case and silicon foam pads minimize coupling of surface vibration.
• 80 Hz UniSteep filter — Reduces pickup of low-frequency ambient noise.
• UniGuard RFI protection — Offers strong immunity from radio-frequency interference, with a PivotPoint rotating output connector.

Typical Applications

• Boardroom
• Conference room
• Commercial meeting space
• Multi-purpose room
• Government space

Frequently Asked Questions

What polar pattern does the U891RB use?
A cardioid pattern; interchangeable elements are also available in omnidirectional, cardioid, and hypercardioid patterns.

How does the switch work?
A touch-sensitive switch can be set to touch on/off, touch-to-talk, or touch-to-mute.

Does it show mute status?
Yes. An integral two-state RGB LED indicator shows the on/off status of the microphone.

How is surface noise controlled?
A heavy die-cast case, silicon foam bottom pads, and an 80 Hz UniSteep low-cut filter reduce surface vibration and low-frequency noise.

What power does it need?
Phantom power only, via the integral power module.

Is warranty and integration support available?
Audio-Technica's manufacturer warranty applies, and Creation Networks supports commercial AV buyers with selection, design, and integration.

Technical Specifications