MX393/C Microflex Wired Boundary Microphones from Shure are equipped with features like programmable, silent membrane switches, logic inputs and outputs, and green LED indicators. The high-quality solution for a range of applications such as altars, boardrooms and distance learning centers, Microflex Boundary microphones feature interchangeable condenser cartridges.

• Flat frequency response across the vocal range for uncolored sound
• Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide optimal choice for each application
• Sleek, low-profile design for unobtrusive appearance
• Balanced, transformerless output for increased immunity to noise over long cable runs
• Programmable membrane on/off switch plus LED on/off indicator

• Cartridge Type: Electret Condenser
• Frequency Response: 50-17000 Hz
• Polar Pattern: Cardioid
• Output Impedance: 180 Ω
• Output Configuration: Active Balanced
• Sensitivity @ 1 kHz, open circuit voltage: -30 dBV/Pa
• Maximum SPL 1 kHz at 1% THD, 1 kΩ load: 119 dB
• Equivalent Output Noise A-weighted: 23 dB SPL
• Signal-to-Noise Ratio Ref. 94 dB SPL at 1 kHz: 71 dB
• Dynamic Range 1 kΩ load, @ 1 kHz: 96 dB
• Common Mode Rejection 10 Hz to 100 kHz: 45 dB, minimum
• 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
• Power Requirements: 11-52 V DC, 2.0 mA
• 3½ m (12 ft) detachable cable with 3-pin audio connector
• Net Weight: 172 g (0.38 lbs)