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Home > Pro Audio > Microphones & Wireless Systems > Wireless Systems > Wireless System Components > Shure MX690 Microflex Wireless Boundary Microphone

Wireless System Components

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  • Overview
  • Details
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Item #: 270913 018
Mfg #: MX690-J3

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Price: $499.99
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Product Overview

Transmitter Specifications
Operating Range: 100 ft (30 m) (Note: Actual range depends on RF signal absorption, reflection, and interference)
Frequency Stability: ±10 ppm
Maximum Frequency Deviation: 45 kHz
Oscillator Type: Phase-locked loop (PLL) controlled synthesizer
Power Requirements: 3V (2 AA alkaline or rechargeable batteries)
Battery Life: =8 hours (alkaline)
Power Consumption: 130 mA, ±15 mA
Operating Temperature Range: -18—57 degrees C (0—135 degrees F)
(Note: Battery may limit this range)
Dimensions (H x W x D): 1-11/16" x 3-3/8" x 5-13/16" (43 x 87 x 148 mm)
Weight: 11.2 oz (318 g)

Microphone
Type: Condenser (electret bias)
Frequency Response: 50—17000 Hz
Polar Pattern (at 1 kHz): Cardioid
Sensitivity (at 1 kHz , open circuit voltage): —33 dBV/Pa (22 mV) 1 Pascal=94 dB SPL
Dynamic Range (1 kohm load at 1 kHz): 96 dB
Common Mode Rejection (10 Hz to

  • Sleek, low profile design
    Frequency agile, microprocessor controlled transmitter
    Bi-color status indicator
    IR link to SLX receiver for automatic frequency synchronization
    Programmable mute function
    Battery level indicator
    Operates on two AA batteries
    Logic output for remote LED and mute control
    CommShield Technology for improved RF filtering
Product Details

Shure MX690 Microflex Wireless Boundary Microphone

The Shure MX690 Microflex Wireless Boundary Microphone offers total freedom of placement with no holes to drill or cables to run for installation. The MX690 plate mic is a both a microphone and a wireless transmitter and is the perfect solution for conference and meeting spaces where users demand flexibility and high performance. Compatible with Shure SLX wireless systems, including the SLX4L receiver with logic output for applications requiring logic functionality.

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  • Transmitter Specifications
    Operating Range: 100 ft (30 m) (Note: Actual range depends on RF signal absorption, reflection, and interference)
    Frequency Stability: ±10 ppm
    Maximum Frequency Deviation: 45 kHz
    Oscillator Type: Phase-locked loop (PLL) controlled synthesizer
    Power Requirements: 3V (2 AA alkaline or rechargeable batteries)
    Battery Life: =8 hours (alkaline)
    Power Consumption: 130 mA, ±15 mA
    Operating Temperature Range: -18—57 degrees C (0—135 degrees F)
    (Note: Battery may limit this range)
    Dimensions (H x W x D): 1-11/16" x 3-3/8" x 5-13/16" (43 x 87 x 148 mm)
    Weight: 11.2 oz (318 g)

    Microphone
    Type: Condenser (electret bias)
    Frequency Response: 50—17000 Hz
    Polar Pattern (at 1 kHz): Cardioid
    Sensitivity (at 1 kHz , open circuit voltage): —33 dBV/Pa (22 mV) 1 Pascal=94 dB SPL
    Dynamic Range (1 kohm load at 1 kHz): 96 dB
    Common Mode Rejection (10 Hz to 100 kHz): 45 dB minimum
    Preamplifier Output Clipping Level (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 or tip of 1/4" phone plug.
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