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Our Price: $192.00
Microflex models from Shure, the smartest boundary microphones yet. 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 a choice of interchangeable condenser cartridges.
Available in cardioid, supercardioid and omnidirectional polar patterns, the Microflex cartridges give you superior Shure quality sound for every application. 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 Microflex Boundary microphones the smart choice for just about every application. Take a listen today.
The polar pattern of the cartridge is indicated by the model number suffix:
C = Cardioid, S = Supercardioid, O= Omnidirectional
MX391 C/S/O and MX391W C/S/O (white) models: have an attached 4 meter (12 ft) cable terminated with a 4-pin mini connector and a separate preamplifier. A rubber strain relief is provided for applicationswhere you want to remove the 4-pin mini connector and connect the microphone cable directly to screw terminals in the preamplifier.
MX391LP C/S/O and MX391WLP C/S/O (white) models: have an attached 4 meter (12 ft) cable terminated with a 4-pin mini connector, but do not include a preamplifier. These models are solely for use with a Shure wireless body-pack transmitter.
MX392 C/S/O Models: Surface-mount microphone; includes a programmable membrane on/off switch, logic input/output terminals, an on/off indicator LED, screw terminal connections, and attached unterminated cable.
MX393 C/S/O Models: Surface-mount microphone; includes a programmable membrane on/off switch, an on/off indicator LED, and a miniature, three pin connector.
|Environmental Requirements||Operating Temperature Range: -18 to 57 degrees C (0 to 135 degrees F) |
Relative Humidity: 0 to 95%
|PREAMPLIFIER||These specifications apply only to the MX391/MX391W microphones when used with the supplied preamplifier. All measurements taken with the microphone mounted on a 76.2 cm x 76.2 cm (30 in. x 30 in.) wooden surface and with the sound source incident at 30 . with respect to the surface plane.|
|Frequency Response||50 to 17,000 Hz|
|Output Impedance (at 1000 Hz)||180 ohms actual (rated at 150 ohms)|
|Open Circuit Sensitivity 1 kHz ref. 1 V per Pascal||-29.6 dB (33.5 mV), All settings -12 dB at 0 gain; 1 Pascal = 94 dB SPL|
|Maximum Sound Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 k ohm load)||118.8 dB, All settings +6 dB at 0 gain|
|Signal to Noise Ratio (referenced at 94 dB SPL)||71.4 dB|
|Equivalent Output Noise (A-weighted)||22.6 dB SPL|
|Dynamic Range at 1 k ohm Load||96.2 dB|
100 dB at 0 gain
|Common Mode Rejection||45 dB minimum, 10 Hz to 100 kHz|
|Preamplifier Output Clipping Level||-6 dBV (0.5 V)|
12 dB at 0 gain
|Polarity||Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the preamplifier XLR output connector.|
|Power Requirements||11 to 52 Vdc phantom|
2.0 mA current consumption
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