Shure MX392/O Omnidirectional - Condenser Boundary Microphone, Built-in Preamp, Attached 12' Unterminated Cable, Logic Functions, Programmable Switch and LED Indicator

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:

- Type: Condenser (electret bias)
- Frequency Response: 50 Hz – 17 kHz
- Polar Pattern: Omnidirectional
- Output Impedance: EIA rated at 150 Ω (180 Ω actual)
- Logic Connections:

• LED IN: Active low (≤1.0 V), TTL compatible. Absolute maximum voltage: –0.7 V to 50 V
• SWITCH OUT: Active low (≤0.5 V), sinks up to 20 mA, TTL compatible

- Absolute maximum voltage: –0.7 V to 50 V (up to 50 V through 3 kΩ).

- Environmental Conditions:

• Operating temperature range: –18° C – 57° C
• Relative Humidity: 0 – 95%

- Power Requirements: 11 – 52 Vdc phantom, 2.0 mA
- Sensitivity (at 1 kHz, open circuit voltage; 1 Pascal = 94 dB SPL); All settings -12 dB at 0 gain (internal modification): -22.0 dBV/Pa (79.4 mV)
- Maximum SPL, 1 kHz at 1% THD, 1 kΩ load; All settings +6 dB at 0 gain (internal modification): 111.5 dB
- Equivalent Output Noise, A-weighted: 17.5 dB
- Signal-to-Noise Ratio, referenced at 94 dB SPL at 1 kHz: 76.5 dB
- Dynamic Range 1 kΩ load at 1 kHz: 94.0 dB
- Common Mode Rejection, 10 Hz to 100 kHz: 45 dB minimum, 10 Hz to 100 kHz
- Preamplifier Output Clipping Level, 1% THD: –6 dBV (0.5 V)
- Polarity: Positive sound pressure on diaphragm produces positive voltage on red wire relative to black wire