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Designed for Broadcast, House of Worship, Pro Music, and other applications.
Half-cardioid polar pattern
Boundary layer
Ultra-thin profile (16 mm) housing
Rubber non-slip bottom pad and strong steel screen
Integrated pop filter
Case Material Die cast zinc
Connector Type 3-pin XLR
Element Back Electret Condenser
Finish Non-reflecting Black
Finish White
Impedance, Low-Z balanced 200 Ω
Mic Type Boundary
Open Circuit Voltage 25 mV/Pascal
Polar Pattern Cardioid
Wired/Wireless Wired
Height 16 mm (0.63“)
Width 94 mm (3.7“)
Depth 123 mm (4.84“)
Weight Net 12.63 oz (358 g)
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A wide range condenser microphone with a cardioid polar pattern, the ultra-smart U891RCx 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.
- 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
- 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: 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
- Weight: 266g
- Dimensions: 108.0mm long, 84.0mm maximum width, 23.0mm height
- Output Connector: TB5M-type
- Cable: 7.6m long, 3.2mm 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
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SHURE MX-391/C Microphone BOUNDARY
Microflex Boundary There's never been smarter boundary microphones than the Microflex models from Shure. With many models to choose from, equipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, Microflex Boundary microphones are the high-quality solution for a range of applications, such as altars, boardrooms and distance learning centers. Every Microflex Boundary microphone features one of the new interchangeable condenser cartridges. Available in cardioid, supercardioid and omnidirectional polar patterns, the Microflex cartridges give you superior Shure quality sound options for every installation. In addition, their programmable switches offer the flexibility to be set for Push to Talk, Push to Mute or Push On/Push Off modes. Attractively designed with a low profile, professional appearance, the Microflex Boundary microphones come with an easy to use paint mask for your custom-color installations. Find out why we call the new Microflex Boundary microphones "the smart choice" for just about every application. Take a listen today.
Model | Description | MX391/C - Cardioid | Miniature Black Condenser Boundary Microphone, In-Line Preamp, 12 foot (4 meter) Attached Cable to 4-Pin Mini Connector | MX391/S - Supercardioid | MX391/O - Omnidirectional | MX391/C - Cardioid | Miniature Black Condenser Boundary Microphone, 12 foot (4 meter) Attached Cable to 4-Pin Mini Connector, MX1BP Preamplifier | MX391/S - Supercardioid | MX391/O - Omnidirectional | MX391LP/C - Cardioid | Miniature Black Condenser Boundary Microphone (Wireless Compatible), 12 foot (4 meter) Attached Cable to 4-Pin Mini Connector Less Preamplifier | MX391LP/S - Supercardioid | MX391LP/O - Omnidirectional | MX391WLP/C - Cardioid | Miniature White Condenser (Wireless Compatible) Boundary Microphone, 12 foot Attached Cable to 4-Pin Mini Connector, Less Preamplifier | MX391WLP/S - Supercardioid | MX391WLP/O - Omnidirectional | MX391W/C - Cardioid | Miniature White Condenser Boundary Microphone, 12 foot (4 meter) Attached Cable to 4-Pin Mini Connector, In-Line Preamplifier | MX391W/S - Supercardioid | MX391W/O - Omnidirectional | MX392/C - Cardioid | Condenser Boundary Microphone, Built-in Preamp, Attached 12 foot (4 meter) Unterminated Cable, Logic Functions, Programmable Switch and LED Indicator | MX392/S - Supercardioid | MX392/O - Omnidirectional | MX393/C - Cardioid | Condenser Boundary Microphone, Built-in Preamp, 12 foot (4 meter) 3-Pin Mini Connector (TA3F) to male XLR, Programmable Switch and LED Indicator |
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Condenser
Lightweight, sensitive diaphragm. Precisely and smoothly captures sound nuances. Powered by battery or phantom power supply.
Recommended Uses
Conference/Installed
Available Options
MX396C/DUAL Dual-Element 0-180 Degrees, Cardioid, back or bottom exit cable, mute output, LED input
MX396/TRI Dual-Element 90-0-90 mic, adjustable to 120-120-120 degrees, Cardioid, back or bottom exit cable, mute output, LED input
The Microflex® Multi-Element Boundary microphone delivers a unique and versatile tool for conference room installations.
Clean and simple in appearance, Multi-Element Boundary mics come in two or three element configurations, combining the coverage of multiple microphones into one small, compact package.
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The e 912 is a pre-polarized condenser boundary microphone with
half-cardioid pick-up pattern. Its acoustic properties have been
optimized for instruments, vocals and speech. The e 912 is an ideal
choice for pianos, theatre and opera productions, conference applications,
altars and lecterns.To optimally match the installation environment,
the e 912 is available in black or creme white.
Features
Frequency response and sensitivity optimized for picking up instruments,
vocals and speech
Unobtrusive, flat housing
Extremely rugged and step-resistant
Shock-absorbing rubber base
Mounting slots for table installation
Gold-plated XLR connector
Integrated pre-amp
Delivery Includes
e 912 Microphone
Pouch
User manual
Technical Data
Transducer principle (Microphone) permanently polarized condenser
Pick-up pattern half-cardioid
Sensitivity in free field, no load (1kHz) 10 mV/Pa
Max. Sound pressure level (aktiv) 135,6 dB
Equivalent noise level 26 dB(A)
Phantom powering 48 V / 1,1 mA
Nominal impedance
Min. terminating impedance 1000 Ohm
Dimensions 126,5 x 105 x 26,5 mm
Weight ca. 550 g
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Condenser
Lightweight, sensitive diaphragm. Precisely and smoothly captures sound nuances. Powered by battery or phantom power supply.
Recommended Uses
Conference/Installed
Available Options
MX396C/DUAL Dual-Element 0-180 Degrees, Cardioid, back or bottom exit cable, mute output, LED input
MX396/TRI Dual-Element 90-0-90 mic, adjustable to 120-120-120 degrees, Cardioid, back or bottom exit cable, mute output, LED input
The Microflex® Multi-Element Boundary microphone delivers a unique and versatile tool for conference room installations.
Clean and simple in appearance, Multi-Element Boundary mics come in two or three element configurations, combining the coverage of multiple microphones into one small, compact package.
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