Designed to deliver easy, flexible control in conference and boardroom installations, the versatile U891R cardioid condenser boundary microphone features a touch-sensitive on-off 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.
In Depth
U891Rx Features: • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations • Ultra-quiet electronic 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 silicon foam bottom pads minimize coupling of surface vibration to the microphone • Low-profile design with low-reflectance finish for minimum visibility • Available in two colors: black (U891R) and white (U891RW)
U891Rx Specifications: • ELEMENT: Fixed-charge back plate, permanently polarized condenser • POLAR PATTERN: Half-cardioid (cardioid in hemisphere above mounting surface) • FREQUENCY RESPONSE: 30-20,000Hz • LOW FREQUENCY ROLL-OFF: 80Hz, 18dB/octave • OPEN CIRCUIT SENSITIVITY: —34dB (19.9 mV) re 1V at 1 Pa • IMPEDANCE: 200 ohms • MAXIMUM INPUT SOUND LEVEL: 130dB SPL, 1kHz at 1% T.H.D. • DYNAMIC RANGE (TYPICAL): 104dB, 1kHz at Max SPL • SIGNAL-TO-NOISE RATIO: 68dB, 1kHz at 1 Pa • PHANTOM POWER REQUIREMENTS: 11-52V DC, 4 mA typical • SWITCHES: Touch-sensitive control: on/off; Switch function: touch on/off, momentary on, momentary off; Flat, roll-off • WEIGHT: 9.3 oz (264 g) • DIMENSIONS: 4-1/4" (108.0mm) long, 3.31" (84.0mm) maximum width, 0.91" (23.0mm) height • OUTPUT CONNECTOR: TB3M-type • CABLE: 25' (7.6m) long, 0.13" (3.2mm) diameter, 2-conductor, shielded cable withTA3F and XLRM-type connectors • OPTIONAL INTERCHANGEABLE ELEMENTS: UE-H hypercardioid (100 degrees); UE-O omnidirectional (360 degrees) • ACCESSORY FURNISHED: Soft protective pouch
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