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ECM-55B   3-776-704-16(1)   (GB)

FEATURES

Two-way powering system using an internal battery or external power supply.

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Ideal design for professional application in radio and TV studios or other audio 

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fields because of its high quality performance and its extremely compact size.
Supplied with three types of microphone holders to be used according the 

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situation and a convenient and compact storage case.

BATTERY OPERATION

1

  Open the battery compartment by turning the sleeve counterclockwise.

2

  Insert an IEC designation R6 or LR6 (size AA) battery into the battery 

compartment.

Check for correct polarity.

3

  Close the compartment by turning the sleeve clockwise. Be sure to close the 

sleeve firmly, otherwise malfunction or noise may occur due to the loose fit.

Notes

If the microphone is not to be used for a long time, remove the battery to 

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avoid any possibility of corrosion.
In case of battery leakage, wipe off any deposit in the battery compartment.

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Battery life depends on the battery type being used. Refer to the “Battery life” 

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in “Specifications” below. When the battery is exhausted, sensitivity will be 
decreased and distortion will be heard. When this occurs, replace with a new 
battery.

English

Before operating the unit, please read this manual thoroughly. This manual 
should be retained for future reference.

For the customers in Europe

This product is intended for use in the following Electromagnetic Environments: 
E1 (residential),  E2 (commercial and light industrial),  E3 (urban outdoors),  E4 
(controlled EMC environment, ex. TV studio).

ATTENTION

The electromagnetic fields at the specific frequencies may influence the sound 
of this unit.

For the customers in the U.S.A.

SONY LIMITED WARRANTY

 - Please visit http://www.sony.com/psa/warranty 

for important information and complete terms and conditions of Sony’s limited 
warranty applicable to this product.

For the customers in Canada

SONY LIMITED WARRANTY

 - Please visit http://www.sonybiz.ca/pro/lang/en/

ca/article/resources-warranty-product-registration for important information 
and complete terms and conditions of Sony’s limited warranty applicable to 
this product.

For the customers in Europe

Sony Professional Solutions Europe - Standard Warranty and Exceptions on 
Standard Warranty.
Please visit https://pro.sony/en_GB/support-services/warranty/support-
professional-solutions-europe-standard-product-warranty for important 
information and complete terms and conditions.

For the customers in Korea

SONY LIMITED WARRANTY

 - Please visit http://bpeng.sony.co.kr/handler/

BPAS-Start for important information and complete terms and conditions of 
Sony’s limited warranty applicable to this product.

3-776-704-

16

(1)

Electret Condenser 

Microphone

Operating Instructions

© 2003 Sony Corporation   

Printed in Japan

ECM-55B

CONNECTIONS

The output connector of the microphone is the XLR-3-12C type. Connect the 
microphone plug to the microphone input of a mixer or a tape recorder. The 
microphone cable is 3 m (10 feet) long.

If a longer cable is necessary, an extension cable up to 200 m (660 feet) may 
be used without affecting sound quality or performance. Use a cable with an 
XLR-3-11C connector at one end and an appropriate plug at the other end which 
matches the input equipment.

Note

If cable connector connection is necessary, note that there are two basic types 
of connections, balanced to ground and unbalanced to ground, and solder 
connections carefully. Poor soldering may cause hum pick up.

PRECAUTIONS

The microphone should never be dropped or subjected to any excessive 

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shock.
Keep the microphone away from extremely high temperatures (above 60 °C 

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or 140 °F)
If the microphone is used too close to speakers, the sound from the speakers 

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will be picked up and produce a howling effect (i.e., acoustic feedback). To 
prevent howling, avoid facing the microphone toward the speakers and 
maintain as much distance from the speakers as possible.
Microphone and recording instruments should be turned on 10 minutes 

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before they are actually used. This assures stable performance of the 
microphones and instruments.

PARTS IDENTIFICATION

Microphone capsule

Power supply section Output connector

Supplied accessories

Wind screen

Microphone holders

Double-clip 
microphone holder

Horizontal 
microphone holder

Vertical  
microphone holder

EXTERNAL POWER SUPPLY

The ECM-55B is designed for external powering (12 to 48 V DC) as well as internal 
battery power. The external power supply system consists of a DC power 
source, standard two conductor shielded microphone cable, and center-tapped 
transformer of the microphone. Use an external power supply unit available in 
the marketplace.

Notes

When an external power supply is used, the internal battery is not discharged. 

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However, if an exhausted battery is installed while operating with external 
power supply, sensitivity will be decreased and noise/distortion will be heard.
For extending the cable between the power supply and the microphone, use a 

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balanced-type cable.

3776704160

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