The Shure MX391 is a Microflex Boundary Microphone provides high-quality sound for a wide range of applications due to its interchangeable condenser cartridge and low-profile design. Equipped with features like programmable, silent membrane switches, logic inputs and outputs, 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 a choice of interchangeable condenser cartridges.
Frequency Response: 50 Hz – 17 kHz
Output Impedance: EIA rated at 150 Ω (180 Ω actual)
Power Requirements: 11 – 52 Vdc phantom, 2.0 mA
Dynamic Range: 1 kΩ load at 1 kHz 96.2 dB
Common Mode Rejection: 10 Hz to 100 kHz
Operating Temperature Range: –18° C – 57° C
Storage Temperature –29–74°C (–20–165°F)
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