Shure Microflex MX300 series Bedienungsanleitung

27A30137 (Rev. 1)

MICROFLEX WIRED MICROPHONES

MX300 SERIES

USER GUIDE

Le Guide de l’Utilisateur

Guia del Usuario

Guida dell’Utente

Bedienungsanleitung

取扱説明書

Manual do Usuário

Printed in U.S.A.

MX392 MX392BE MX393

Shure Microflex®MX300 Series microphones are surface-mounted electret condenser microphones

designed primarily for mounting on conference tables, stage floors, and lecterns. Their high sensi-

tivity and wide frequency range make them especially suitable for picking up speech and vocals in

sound reinforcement and recording applications. Interchangeable cartridges provide the installer with

greater flexibility and make it possible to easily reconfigure microphone coverage as the need arises.

The MX392 and MX393 models include an internal preamplifier.

MX300 Series microphones take advantage of the principle that, at a barrier or boundary, the sound

pressure level doubles. When placed near a sufficiently large boundary surface, the microphone has

6 dB higher sensitivity and approximately 3 dB greater direct-to-reverberant sound ratio.

MX392-MX392BE-MX393

Boundary Microphones

Features

The MX392, MX392BE, and MX393 feature pro-

grammable logic input and output. Additionally

they provide following benefits:

• Flat frequency response across the vocal

range for uncolored sound

• Interchangeable cartridges that provide a

choice of polar pattern for each application

• Sleek, low-profile design for surface mounting

• Programmable mute button

• LED indicator

• Logic input/output for remote control or use

with automatic mixers

• RF filtering

Model Variations

MX392: Attached, unterminated cable.

MX392BE: Attached, unterminated cable

configured at the factory for bottom exit.

MX393: Detachable cable with XLR output

connector.

The polar pattern of the included cartridge is

indicated by a model number suffix:

/C Cardioid

/S Supercardioid

/O Omnidirectional

/N Cartridge not included

Remove Grille

Remove Bracket

Cartridge

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.

Note: If using rear side-exit cable option, only

drill two outer holes.

②

③

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 sur-

faces above or to the side of the microphone,

such as beveled sides of pulpits or overhanging

shelves.

Interchangeable Cartridges

115º

Microflex microphones use interchangeable

cartridges that allow you to choose the polar

pattern for different installations.

R183

R184

R185

Omnidirectional

Supercardioid

Cardioid

Cartridge Polar Patterns

Once placement has been determined, the microphones can be permanently installed. First, drill the

hole in the selected area to allow the bottom entry cable to be conveniently routed out of sight. Then

use the pressure sensitive adhesive to keep the microphone firmly in place.

Drilling the hole:

1. Determine the cutting area for the bottom exit cable and drill a 1/2" (12.7 mm) circular hole.

Remove all debris from the mounting surface.

2. Route the cable through the drilled hole.

3. Connect the integrated XLR cable to a mixer or P.A. system.

Pressure Sensitive Adhesive

Re-Routing Cable for Bottom Exit (If your

MX392 is not BE configured)

②

⑧

⑤

⑥

③

MX392BE

1. Remove the grille.

2. Disconnect wires from screw terminals.

3. Grasp rubber boot within 1/2" of housing, us-

ing gas pliers. Rotate boot and cable ccw to

remove connector from threaded "L" bracket.

4. Remove cable from microphone housing.

5. Insert cable through access hole in micro-

phone base.

6. Insert cable connector through hole and

thread it into "L" bracket.

7. If desired, rubber strain relief can be reat-

tached to cable end or removed from cable

before fastening it to bracket.

8. Re-connect wires to proper screw terminals

on circuit board.

9. Insert supplied round rubber plug into unused

side cable exit.

10. Reinstall grille and foam screen.

11. Insert cable through hole in mounting

surface. Secure microphone to mounting

surface.

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.

MX392BE/C

MICROFLEX

Bottom view of MX392BE/C with adhesive pads

12.7 mm

(1/2 in.)

① ② ③

Configuration

DIP Switches

Use the DIP switches to configure logic settings

and mute button behavior.

The DIP switches are covered with a piece of

clear tape at the factory. Remove tape to modify

the switch settings.

Note: Bottom cover must be closed for micro-

phone to function.

OFF (factory

default)

1 Momentary Toggle

2 Push-to-mute Push-to-talk

3 Mute button enabled,

LED illuminates when

mic is active

Disable mute button

(microphone always

on), logic controls

LED

4 -- --

Wiring Diagram

NOTE: Audio and logic ground are connected at

microphone base.

Ground (Green)

SWITCH OUT (White)

LED IN (Orange)

Audio + (Red)

Audio – (Black)

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).

Momentary: push-to-talk

Toggle: (Push On/Push

Off): Mic is active when

powered on

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. This disbles the mute

button (the microphone passes audio regard-

less of whether the button is pressed or not).

3. Set DIP switch 1 to configure how the mute

button sends SWITCH OUT logic:

Momentary:

push = 0 Vdc,

release = 5 Vdc

Toggle:

initial = 5 Vdc,

push = 0 Vdc

Logic Wiring (MX392)

Changing SWITCH OUT to

Always Momentary

Use the following modification in situations

where your logic interface requires momentary

closure of the SWITCH OUT, but you want the

mute button to toggle the microphone (DIP

switch 1 ON, 3 OFF):

1. Access the circuit board inside the micro-

phone base.

2. Remove the resistor at R45 and reinstall it at

location R46.

Green (LOGIC GROUND): Connects to the

logic ground of an automatic mixer, switcher, or

other equipment.

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.

Mute Button Configuration

Painting

Asupplied plastic paint shield

Bretainer

Cgrille

Dfoam screen

Esupplied adhesive masking strip

Fsupplied rubber plug

1. Remove foam screen from grille before

painting

2. Clean surfaces to be painted with denatured

alcohol or naphtha.

3. To avoid filling grille holes, apply paint in thin

layers.

4. Important: Use fine sandpaper to remove

paint from the bottom edges of the grille.

This ensures electrical continuity for proper

shielding.

Specifications

All measurements taken with microphone mounted on

a wooden surface (76 x 76 cm)

Cartridge Type

Electret Condenser

Frequency Response

50–17000 Hz

Polar Pattern

MX392/C, MX392BE/C,

MX393/C

Cardioid

MX392/S, MX392BE/S,

MX393/S

Supercardioid

MX392/O, MX392BE/O,

MX393/O

Omnidirectional

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

Equivalent Output Noise

A-weighted

Cardioid 23 dB SPL

Supercardioid 21 dB SPL

Omnidirectional 15 dB SPL

Signal-to-Noise Ratio

Ref. 94 dB SPL at 1 kHz

Cardioid 71 dB

Supercardioid 73 dB

Omnidirectional 80 dB

Dynamic Range

1kΩload,@1kHz

96 dB

Common Mode Rejection

10 Hz to 100 kHz

45 dB, minimum

Preamplifier Output Clipping Level

at 1% THD

–6 dBV (0.5 V)

Polarity

Positive sound pressure on diaphragm produc-

es positive voltage on pin 2 relative to pin 3 of

output XLR connector

Mute Switch

50–20000 Hz

–50 dBminimum

Logic Connections (MX392)

LED IN Activelow(≤1.0V),TTLcompatible.

Absolute maximum voltage: -0.7V

to 50V.

LOGIC-OUT Activelow(≤0.5V),sinksupto

20mA, TTL compatible. Absolute

maximum voltage: -0.7V to 24V (up

to50Vthrough3kΩ).

Cable

MX392 3½ m (12 ft) attached cable with

shielded audio pair and three

conductors for logic control,

unterminated

MX392BE 3½ m (12 ft) attached cable with

shielded audio pair and three con-

ductors for logic control, unterminat-

ed, bottom exit

MX393 3½ m (12 ft) detachable cable with

3-pin audio connector

Net Weight

172 g (0.38 lbs)

Environmental Conditions

Operating Temperature –18–57°C (0–135°F)

Storage Temperature –29–74°C (–20–165°F)

Relative Humidity 0–95%

Power Requirements

11–52 V DC, 2.0 mA

Furnished Accessories

Paint Mask 80C514

Switch Paint Mask 80A541

Set of 5 rubber pads with adhesive (MX392BE) RPM470

Certifications

Meets essential requirements of all applicable European Directives.

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. 12

75031 Eppingen, Germany

Phone: 49-7262-92 49 0

Fax: 49-7262-92 49 11 4

Email: [email protected]

Accessories

Replacement Parts

Black or White Omnidirectional Cartridge for all MX-

(Microflex®) Models and WL183

R183B

Black or White Cardioid Cartridge for WL185 and all MX-

(Microflex®) Models

R185B

12' Cable, 3-Pin Mini Connector (TA3F) to Male XLR,

Used with MX393

C129

Custom Logic Cable (specify length) 95B2509

12' Cable (5-Conductor, 2 Shielded) with threaded adapter

on microphone end to bare end for MX392

C130

(4.264 in.)

(3 in.) (0.89 in.)

(3.344 in.)

(3.603 in.)

(2.5 in.)

(3.544 in.)

63.5 mm

76.2 mm

84.93 mm

90 mm

91.51 mm

108.3 mm

24.17 mm

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