Audio-Technica U891RCx Cardioid Condenser Boundary Microphone

Order your Audio-Technica U891RCX Condenser Boundary Mic with Switch and enjoy 0% Interest Payment Plans, Free Shipping, Free Extended Warranty and 45 Day Money Back Guarantee.

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Product Description

A wide range condenser microphone with a cardioid polar pattern, the Audio-Technica U891RCX is equipped with local or remote switching options. For flexible control in conference and boardroom installations, the unit’s external contact closure ability allows a user to trigger an external device, a camera, for instance, from a switch on the microphone. Another ease-of-use feature: the microphone’s activation switch can be set to three operating modes: touch-on/touch-off, press to talk, and press to mute.

The U891RCX is also equipped an 80 Hz low-cut UniSteep filter to reduce pickup of low-frequency ambient noise. Its red LED status indicator can be controlled remotely. UniGuard innovations offer unsurpassed immunity from radio frequency interference; interchangeable elements are available in cardioid, hypercardioid and omnidirectional polar patterns; a unique rotating PivotPoint connector changes the cable exit point, no tools required. It requires 11 to 52V DC phantom power, which operates the microphone and switch circuitry.

Audio-Technica U891RCX Boundary Mic Features

  • Designed for surface-mount applications such as high-quality sound reinforcement, conferencing, distance learning 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
  • External contact closure capability permits control of remote devices from microphone switch
  • External LED control allows for accurate depiction of the live status of the microphone
  • PivotPoint rotating output connector allows cable to exit from either the rear or the bottom of the microphone
  • Small-diameter UniPoint capsule near boundary eliminates phase distortion and delivers clear, high-output performance
  • UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • 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 black finish for minimum visibility
  • Improved switch design

Product Specifications
Audio-Technica U891RCX 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: 266 g (9.4 oz)
  • Dimensions(LxWxH): 4.25 x 3.31 x 0.91 inches 
  • Output Connector: TB5M-type
  • Cable: 25.0 feet long, 5-conductor shielded cable (2 conductors under shield; 3 control wires outside shield); TA5F-type connector at microphone end, output end stripped and tinned for connection to electronic device
  • 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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