Audio-Technica U891RX Cardioid Condenser Boundary Microphone With Switch
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.
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
Available in two colors: black (U891Rx) and white (U891RWx)
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;
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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