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| Cardioid Condenser Boundary Microphone. Made by Audio-Technica. (MP.U891RC)
A wide range condenser microphone with a cardioid polar pattern, the ultra-smart U891RC 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 electronic on-off 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
- Ultra-quiet electronic 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 silicon foam bottom pads minimize coupling of surface vibration to the microphone
- Low-profile design with low-reflectance black finish for minimum visibility
Specs: - 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: Touch-sensitive control: on/off; Switch function: touch on/off, momentary on, momentary off; Control: local, remote, LED remote; Flat, roll-off
- OUTPUT CONNECTOR: TB5M-type
- CABLE: 25.0' (7.6 m) long, 0.13" (3.2 mm) 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 ELEMENTS: UE-H hypercardioid (100°); UE-O omnidirectional (360°)
- INCLUDED ACCESSORY: Soft protective pouch
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