Products Featured Products
Cardioid Condenser Boundary Microphone with Switch
Product Description
Designed to deliver easy, flexible control in conference and boardroom installations, the versatile U891Rx cardioid condenser boundary microphone features a touch-sensitive on-off switch that can be set to three modes: press-on/press-off, press to talk, and press to mute. The phantom-powered microphone is equipped with a unique PivotPoint® rotating output connector and an LED status indicator. UniGuard® innovations offer unsurpassed immunity from radio frequency interference; interchangeable elements are available in cardioid, hypercardioid and omnidirectional polar patterns; an 80 Hz low-cut UniSteep® filter reduces pickup of low-frequency ambient noise. The microphone's heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone. The unit's self-contained electronics eliminate the need for an external power module.
- Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
- Ultra-quiet electronic switch can be set to any of three operating modes: "touch-on/ touch-off," "touch-to-talk" and "touch-to-mute"
- PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
- Superior off-axis rejection for maximum gain before feedback
- UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
- Small-diameter UniPoint® capsule near boundary eliminates phase distortion and delivers clear, high-output performance
- Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone
- Low-profile design with low-reflectance finish for minimum visibility
- Available in two colors: black (U891Rx) and white (U891RWx)
| Element | Fixed-charge back plate, permanently polarized condenser |
| Polar Pattern | Half-cardioid (cardioid in hemisphere above mounting surface) |
| Frequency Response | 30 - 20,000 Hz |
| Open Circuit Sensitivity | -34 dB (19.9 mV) re 1V at 1 Pa |
| Impedance | 200 ohms |
| Maximum Input Sound Level | 130 dB SPL, 1 kHz at 1% T.H.D. |
| Low Frequency Roll Off | 80 Hz, 18 dB/octave |
| Switches | Activation: on/off; Switch function: press on/off, momentary on, momentary off; Flat, roll-off |
| Dynamic Range | 104 dB, 1 kHz at Max SPL |
| Signal-to-Noise Ratio | 68 dB, 1 kHz at 1 Pa |
| Phantom Power Requirements | 11-52V DC, 4 mA typical |
| Weight | 264 g |
| Dimensions | 108.0 mm (4.25") maximum length, 84.0 mm (3.31") maximum width, 23.0 mm (0.91") maximum height |
| Output Connector | TB3M-type |
| Cable | 7.6 m (25.0') long, 3.2 mm (0.13") diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors |
| Accessories Included | Soft protective pouch |
Trusted by industry professionals
Whether it’s on the boardroom table, the stage or in the studio, Audio-Technica products are trusted time and again by industry professionals looking for reliable, lovingly developed audio products for all budgets.
It’s Audio-Technica’s commitment to innovation, customer service and meticulous design that ensure professionals turn to us to provide solutions in conferencing, houses of worship, broadcasting, live sound, recording studios and beyond.
50 Years of Devotion to music
For over 50 years Audio-Technica has worked alongside leading figures in sports and music broadcast to develop and hone a range of products that deliver on the highest level.
Audio-Technica have developed and delivered products to power the Grammys, World Cup, Super Bowl, Commonwealth Games as well as every Summer and Winter Games from Atlanta 1996 to Sochi 2014.
A Legacy in Innovation
Founded in 1962 by Hideo Matsushita, Audio-Technica positioned itself immediately as a leader in the manufacture and design of innovative audio products.
Its expertise in innovation quickly spread to various new fields and led to the development of tone arms, microphones and headphones. Audio-Technica soon became a benchmark in those fields. Making history.
A self-made man and audiophile, Hidéo Matsushita was the former Director of the Tokyo Museum of Modern Art. It all started in his workshop, with the hand crafting of stereo cartridges. 50 years later, Audio-Technica has become a global leader in audio innovation.
A Passion for Listening
Humility, passion, creativity and expertise in sound are the core values behind Audio-Technica’s legacy, greatly inspired by its founder - whose imprint on the company’s philosophy is still felt today.
Audio-Technica’s passion for listening evolved in the 70’s, when it started designing headphones, building upon a legacy in innovation, meticulous engineering and artistic design.
Today, Audio-Technica’s audio products have become globally synonymous with consistently high sonic performance paired with impeccable build construction and artistic design.
One Year Limited Warranty
All Audio-Technica products come with a one year warranty as standard meaning you can enjoy your product safe in the knowledge that you’re covered.
All Audio-Technica products purchased from Audio-Technica Europe are guaranteed for one year from the date of purchase to be free of defects in materials and workmanship. In the event of such defect, the product will be repaired or replaced without charge*.
(* T&Cs apply)