- Cardioid Polar Pattern
- Picks up the most sound in front of the microphone and some from the sides. Less susceptible to feedback in high volume environments.
MX690Microflex Wireless Boundary Microphone
- Condenser
- Lightweight, sensitive diaphragm. Precisely and smoothly captures sound nuances. Powered by battery or phantom power supply.
- Recommended Uses
- Conference/Installed
The Microflex® Wireless Boundary Microphone offers total freedom of placement with no holes to drill or cables to run for installation.
The Wireless Boundary Microphone is the perfect solution for conference and meeting spaces where users demand flexibility and high performance. Compatible with Shure SLX® Wireless Systems.
- 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
Specification Sheet (MX690, MX890, PDF)
CAD Drawing (zip file)
Transmitter Specs
Operating Range
30 m (100 ft.)
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 °C (0–135 °F)
Note: Battery may limit this range
Dimensions
43 mmH x 87 mmW x 148 mmD (1 11/16 x 3 3/8 x 5 13/16 in.)
Weight
Net: 318 g (11.2 oz)
Packaged: 516 g (18.2 oz)
Microphone Specs
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 kΩ 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.
| User Guides | Language | File Size |
|---|---|---|
| MX690 User Guide | English | 1397 (kb) |
| MX690 User Guide | Chinese-Simplified | 1567 (kb) |
| MX690 User Guide | French | 1402 (kb) |
| MX690 User Guide | German | 1426 (kb) |
| MX690 User Guide | Italian | 1411 (kb) |
| MX690 User Guide | Japanese | 1307 (kb) |
| MX690 User Guide | Korean | 1514 (kb) |
| MX690 User Guide | Portuguese | 1409 (kb) |
| MX690 User Guide | Russian | 1361 (kb) |
| MX690 User Guide | Spanish | 1417 (kb) |
