Shure orporated MX890G4 Operators Guide

Wireless Desktop Base

The Shure MX890 desktop base for MX405 and MX410
gooseneck microphones offers cable-free installation for

corporate boardrooms or other applications requiring exible
microphone congurations. The MX890 operates within the
518–865 MHz bands and is compatible with Shure SLX wireless
systems.

©2007, Shure Incorporated

27EN3253 (Rev. 1)

Model MX890

Printed in U.S.A.

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Features

Sleek, low prole design

Frequency agile, microprocessor controlled transmitter

IR link to SLX receiver for automatic frequency

synchronization
Programmable frequency Group/Channel display
Programmable mute function

Operates on two AA batteries

Compatible with all Shure SLX Wireless systems

Supports Shure MX405 and MX410 Mini Gooseneck
Microphones

Commshield™ technology for protection from RF interference

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Microphone Placement

Place the MX890 no more than 25 cm (1 ft.) from the edge of
the table. Aim the microphone toward the talker and away from
loudspeakers and noise sources. Use one microphone for each
talker. Pickup angle with a cardioid cartridge is 130° at –3 dB.
Pickup angle with a supercardioid cartridge is 115° at –3 dB.

Note: To minimize RF interference, maintain a distance of at

least 0.3 m (1 ft.) between transmitters. In case of interference,
increase the distance between transmitters or change channels.

Receiver

Make sure the receiver is within sight of the transmitter. Do not
place receiver behind a metal barrier or any reective surface.

Refer to the SLX Wireless System User Guide for more
information, or visit www.shure.com.

130º

30m (100ft)

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The low-cut lter attenuates frequencies
below 150 Hz by 6 dB per octave.

Low-Cut Filter

Filter disabled (as supplied)

Low-cut lter

Connecting Gooseneck

Align the pin on the microphone
ange with the slot on the desktop
base.

Insert the gooseneck into the
desktop base and lock it in place
by rotating the gooseneck sleeve

clockwise.

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2.

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Battery

Installation

Open the battery compartment

as shown.

Insert two1.5V “AA” batteries.

Make sure the +/– terminals

are properly oriented.

Note: Alkaline batteries last up to

8 hours. Rechargeable, carbon­zinc and zinc-chloride batteries
provide less operating time.

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2.

Power Meter

The battery meter on the

LCD shows remaining
battery life.

Low Power Indicator

Steady Red: Power

low. Replace batteries

immediately

Pulsing Red: Batteries

dead. Transmitter cannot be

turned on until batteries are

replaced.

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Press and hold the ON/OFF PROGRAM button for

approximately 2 seconds. The LCD illuminates.

To turn the transmitter off, press and hold the ON/OFF
PROGRAM button again.

Note: Use the button on the bottom of the transmitter to power it

on without opening the battery compartment.

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2.

Power On/Off

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