audio-technica U891RX Cardioid Condenser Boundary Microphone With Switch

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Category: audio-technica, Pro-Audio-Installation-Sound-Boundary


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Designed to deliver easy, flexible control in conference and boardroom installations, the versatile U891R 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. 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.

ELEMENT Fixed-charge back plate, permanently polarized condenser

POLAR PATTERN Half-cardioid 

(cardioid in hemisphere above mounting surface)

FREQUENCY RESPONSE 30-20,000 Hz

LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave

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.

DYNAMIC RANGE (typical) 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

SWITCHES Activation: on/off; 

Switch function: press on/off, 

momentary on, momentary off; 

Flat, roll-off

WEIGHT 264 g (9.3 oz)

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

OPTIONAL INTERCHANGEABLE ELEMENTS UE-O omnidirectional (360°) 

UE-H hypercardioid (100°)

ACCESSORY FURNISHED Soft protective pouch

 

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