Audio-Technica U891RX Condenser Boundary Mic with Switch

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Product Description

Designed to deliver easy, flexible control in conference and boardroom installations, the versatile Audio-Technica U891RX cardioid condenser boundary microphone features an activation switch that can be set to three modes: press-on/press-off, press to talk, and press to mute. This 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 U891RX'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.

Audio-Technica U891RX Condenser Boundary Mic Features

  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • An activation 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 silicone foam bottom pads minimize coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance finish for minimum visibility
  • Improved switch design

Product Specifications
Audio-Technica U891RX Condenser Boundary Mic Specifications
  • Element: Fixed-charge back plate, permanently polarized condenser 
  • Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface) 
  • Freq Response: 30-20,000 Hz 
  • Low Freq Roll-Off: 80 Hz, 18 dB/octave 
  • Open Circuit Sensitivity: –34 dB (19.9 mV) re 1V at 1 Pa
  • Impedance: 200 ohms 
  • Max 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 
  • Phantom Power Requirements: 11-52V DC, 4 mA typical
  • Weight: 264 g (9.3 oz)
  • Dimensions(LxWxH): 4.25 x 3.31 x 0.91 inches 
  • Output Connector: TB3M-type
  • Cable: 25 feet long, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors
  • Included Accessories: Soft protective pouch


Helpful Info about the Manufacturer
Phone:  330-686-2600 Warranty:  1 Year;
2 Year on Headphones and In Ear Monitors;
5 Year on 40 Series, Artist Elite, Broadcast and Production, Midnight Blues Series;
Liftetime on ATR and Premium Cable
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