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Audio Technica U891RCx

Cardioid Condenser Boundary Microphone with Local or Remote Switching

Product Code 21435

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Audio Technica

A wide range condenser microphone with a cardioid polar pattern, the 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 mic 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.

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MPN: U891RCx
UPC: 042005306800

  • 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
  • ELEMENT Fixed-charge back plate, permanently polarized condenser
  • POLAR PATTERN Half-cardioid
    (cardioid in hemisphere above mounting surface)
  • LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
  • OPEN CIRCUIT SENSITIVITY –34 dB (19.9 mV) re 1V at 1 Pa
  • MPEDANCE 200 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
  • SWITCHES Activation: on/off; Switch function: press on/off, momentary on, momentary off; Control: local, remote, LED remote; Flat, roll-off
  • WEIGHT 266 g (9.4 oz)
  • DIMENSIONS 108.0 mm (4.25") maximum length,
    84.0 mm (3.31") maximum width,
    23.0 mm (0.91") maximum height
  • CABLE 7.6 m (25.0') long, 3.2 mm (0.13") diameter, 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
  • UE-H hypercardioid (100°)
  • ACCESSORY FURNISHED Soft protective pouch

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