Shure MX392BE/O Omnidirectional - Condenser Boundary Microphone, Built-in Preamp

Boundary microphone provides high-quality sound for a wide range of applications due to its interchangeable condenser cartridge. It features programmable, silent membrane switches, LED indicators, and a low-profile design.

Features

• Cardioid, supercardioid and omnidirectional polar patterns
• Programmable, silent membrane switch
• TTL Logic LED input and TTL Logic switch ouput
• LED indicator

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.

Specifications:

- Cartridge Type: Electret Condenser
- Frequency Response: 50 - 170,000 Hz
- Polar Pattern: Omnidirectional
- Output Impedance: 180 Ohms
- Output Configurations: Active Configuration
- Sensitivity @ 1 kHz, open circuit voltage: –22 dBV/Pa
- Maximum SPL 1 kHz at 1% THD, 1 k Ohms load: 111 dB
- Equivalent Output Noise A-Weighted: 15 dB SPL
- Signal-to-Noise Ratio: 80 dB
- Preamplifier Output Clipping Level at 1% THD: –6 dBV (0.5 V)
- Polarity: Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector
- Mute Switch: 50–20000 Hz, 50 dB minimum
- Cable: 3 1/2 m (12 ft) attached cable with shielded audio pair and three conductors for logic control, unterminated, bottom exit
- Net Weight: 172 g (0.38 lbs)
- Power Requirements: 11–52 V DC, 2.0 mA

Dynamic Range:

• 1 kOhms load, @ 1 kHz
• 96 dB

Common Mode Rejection:

• 10 Hz to 100 kHz
• 45 dB, minimum

Logic Connections:

• LED IN: Active low (< /= 1.0 V), TTL compatible. Absolute maximum voltage: -0.7 V to 50 V.
• LGIC-OUT: Active low (< /= 0.5 V), sinks up to 20 mA, TTL compatible. Absolute maximum voltage: -0.7 V to 24 V (up to 50 V through 3kOhms).

Environmental Conditions:

• Operating Temperature: –18–57°C (0–135°F)
• Storage Temperature: –29–74°C (–20–165°F)
• Relative Humidity: 0–95%