MX392 MX393 Boundary Microphones The Shure small, surface-mounted electret condenser microphone series, MX392-393, user guide.
Shure Incorporated Table of Contents MX392 MX393Boundary Microphones General Description Wiring Diagram 8 Mute Button Configuration 9 3 3 Connecting to an Automatic Mixer 10 3 Logic Wiring 10 Interchangeable Cartridges 3 Changing SWITCH OUT to Always Momentary 11 Permanent Installation 5 Painting 11 MX392 and MX393 5 Microphone Placement 6 Specifications 12 MX392BE 6 Furnished Accessories 15 Configuration 8 Certifications 15 Features 3 Model Variations DIP Switches 8 2/
Shure Incorporated MX392 MX393 Boundary Microphones General Description ® Shure Microflex MX300 Series microphones are surface-mounted electret condenser microphones designed primarily for mounting on conference tables, stage floors, and lecterns. Their high sensitivity and wide frequency range make them espe cially suitable for picking up speech and vocals in sound reinforcement and recording applications.
Shure Incorporated Interchangeable Cartridges Microflex microphones use interchangeable cartridges that allow you to choose the polar pattern for different installations.
Shure Incorporated Cartridge Polar Patterns Permanent Installation MX392 and MX393 1. Remove grille to access mounting key holes. 2. Cut slots into pads. 3. Slide microphone forward to engage screws in slots.
Shure Incorporated Note: If using rear side-exit cable option, only drill two outer holes. Microphone Placement For best low-frequency response and rejection of background noise, place the microphone on a large, flat surface, such as a floor, table, or lectern. To reduce reverberance, avoid reflective surfaces above or to the side of the microphone, such as beveled sides of pulpits or overhanging shelves. MX392BE Once placement has been determined, the microphones can be permanently installed.
Shure Incorporated Pressure Sensitive Adhesive 1. Thoroughly clean the application area with the included alcohol wipe. Removing the dust will allow the microphone to adhere well. 2. Remove the adhesive backing and gently set the microphone into position. 3. Once the microphone is in position, firmly apply pressure to the microphone. Note: The pressure sensitive adhesive will be extremely difficult to move once pressure has been applied.
Shure Incorporated 4. 5. 6. 7. 8. 9. 10. 11. Remove cable from microphone housing. Insert cable through access hole in microphone base. Insert cable connector through hole and thread it into "L" bracket. If desired, rubber strain relief can be reattached to cable end or removed from cable before fastening it to bracket. Re-connect wires to proper screw terminals on circuit board. Insert supplied round rubber plug into unused side cable exit. Reinstall grille and foam screen.
Shure Incorporated Mute Button Configuration Use DIP switches 1 and 2 to configure the mute button, as follows. Be sure to set DIP switch 3 off (factory default) so that the mute button controls audio from the microphone. Switch Function DIP Switch Setting Momentary: push-to-mute (as shipped).
Shure Incorporated Switch Function DIP Switch Setting Toggle: (Push On/Push Off): Mic is mute when powered on Connecting to an Automatic Mixer Use these settings if connecting the microphone to an automatic mixer or other device that mutes audio and controls the LED. 1. Connect logic leads to the automatic mixer. Connect the LED IN to the gate output to illuminate the LED when that channel is gated on. 2. Set DIP switch 3 on.
Shure Incorporated Orange (LED IN): Set DIP switch 3 on to use LED IN. When shorted to LOGIC GROUND, the LED turns on. White (SWITCH OUT): Provides TTL logic (0 Vdc or 5 Vdc) in response to the mute button. Set DIP switch 1 for momentary or toggle. When phantom power is applied, logic initializes high (5 Vdc). DIP switch 2 has no effect on SWITCH OUT.
Shure Incorporated 1. 2. 3. 4. Remove foam screen from grille before painting Clean surfaces to be painted with denatured alcohol or naphtha. To avoid filling grille holes, apply paint in thin layers. Important: Use fine sandpaper to remove paint from the bottom edges of the grille. This ensures electrical continuity for proper shielding.
Shure Incorporated Output Impedance 180 Ω Output Configuration Active Balanced Sensitivity @ 1 kHz, open circuit voltage Cardioid –30 dBV/Pa Supercardioid –28 dBV/Pa Omnidirectional –22 dBV/Pa 1 Pa=94 dB SPL Maximum SPL 1 kHz at 1% THD, 1 kΩ load Cardioid 119 dB Supercardioid 118 dB Omnidirectional 111 dB Self Noise A-weighted Cardioid 23 dB SPL Supercardioid 21 dB SPL Omnidirectional 15 dB SPL Signal-to-Noise Ratio Ref.
Shure Incorporated Polarity Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector Mute Switch 50–20000 Hz –50 dB minimum Logic Connections LED IN Active low (≤1.0V), TTL compatible. Absolute maximum voltage: 0.7V to 50V. LOGICOUT Active low (≤0.5V), sinks up to 20mA, TTL compatible. Absolute maximum voltage: 0.7V to 24V (up to 50V through 3kΩ).
Shure Incorporated Furnished Accessories Paint Mask 80C514 Switch Paint Mask 80A541 Set of 5 rubber pads with adhesive RPM470 Certifications Meets essential requirements of all applicable European Directives.
Shure Incorporated Eligible for CE marking. The CE Declaration of Conformity can be obtained from Shure Incorporated or any of its European representatives. For contact information please visit www.shure.com The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance Authorized European representative: Shure Europe GmbH Headquarters Europe, Middle East & Africa Department: EMEA Approval Jakob-Dieffenbacher-Str.
