Audio-Technica U891RCx Cardioid Condenser Boundary Microphone (Black, Local/Remote Switch)

 

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Dale #:AUDI-U891RCX

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  • 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.

    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
  • ELEMENTFixed-charge back plate, permanently polarized condenser
    POLAR PATTERNHalf-cardioid (cardioid in hemisphere above mounting surface)
    FREQUENCY RESPONSE30-20,000 Hz
    LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave
    OPEN CIRCUIT SENSITIVITY–34 dB (19.9 mV) re 1V at 1 Pa
    IMPEDANCE200 ohms
    MAXIMUM INPUT SOUND LEVEL130 dB SPL, 1 kHz at 1% T.H.D.
    DYNAMIC RANGE (TYPICAL)104 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO68 dB, 1 kHz at 1 Pa
    PHANTOM POWER REQUIREMENTS11-52V DC, 4 mA typical
    SWITCHESActivation: on/off; Switch function: press
    on/off, momentary on, momentary off;
    Control: local, remote, LED remote; Flat,
    roll-off
    WEIGHT266 g (9.4 oz)
    DIMENSIONS108.0 mm (4.25") maximum length,
    84.0 mm (3.31") maximum width,
    23.0 mm (0.91") maximum height
    OUTPUT CONNECTORTB5M-type
    CABLE7.6 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
    OPTIONAL INTERCHANGEABLE ELEMENTSUE-O omnidirectional (360°)
    UE-H hypercardioid (100°)
    ACCESSORY FURNISHEDSoft protective pouch
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