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 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 microphones heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone. The units 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)
SPECIFICATIONS | |
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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 Pa |
IMPEDANCE | 200 ohms |
MAXIMUM INPUT SOUND LEVEL | 130 dB SPL, kHz at percent T.H.D. |
DYNAMIC RANGE (typical) | 104 dB, kHz at Max SPL |
SIGNAL-TO-NOISE RATIO | 68 dB, kHz at Pa |
PHANTOM POWER REQUIREMENTS | 11-52V DC, mA typical |
SWITCHES | Activation: on/off; Switch function: press on/off, momentary on, momentary off; Flat, roll-off |
WEIGHT | 264 (9.3 oz) |
DIMENSIONS | 108.0 mm (4.25 inches) maximum length, 84.0 mm (3.31 inches) maximum width, 23.0 mm (0.91inches) maximum height |
OUTPUT CONNECTOR | TB3M-type |
CABLE | 7.6 (25.0 inches) long, 3.2 mm (0.13 inch) diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors |
OPTIONAL INTERCHANGEABLE ELEMENTS | UE-O omnidirectional (360 degrees) UE-H hypercardioid (100 degrees) |
ACCESSORY FURNISHED | Soft protective pouch |
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