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MCB4

Antenna Combiner, 440 to 865 MHz 

Installation and Operation

POWER

ON

MCB4

ANTENNA COMBINER SYSTEM

440 to 865 MHz

OFF

Prior to use of this product, review all safety markings and 
instructions.

AVIS

RISQUE DE CHOC 

ÉLECTRIQUE

NE PAS OUVRIR

CAUTION

RISK OF ELECTRIC 

SHOCK

DO NOT OPEN

WARNING: This apparatus must be grounded. 

This product is a safety class 1 product. There must be an  

uninterruptible safety earth ground from the main power  

source to the product’s AC input. Whenever it is likely that  

the protection has been impaired, disconnect the power cord  

until the ground has been restored.

ATTENTION: Cet appareil doit être mise à la terre.

Cet appareil est de classe de sûreté 1. Il doit y avoir un  

ininterrompable de mise à la terre de sécurité provenant de  

la source principale de courant de l’appareil de l’entrée du  

courant alternatif. Quand la protection a été affaiblie, débrancher  

le fil de courant jusqu’à la mise à terre a bien été réétablie.

To prevent electric shock, do not remove the cover. There are no 

user-serviceable parts inside. Internal adjustments are for qualified 

professionals only. Refer all servicing to qualified service personnel.
Pour prévenir un choc électrique, ne pas ouvrir le couvercle. Il n’y 

aucune pièces de rechanges à l’intérieur. Tout ajustement interne 

doit être fait par une personne qualifié seulement. Référez tout 

réparation au personnel qualifié.

The detachable IEC type power input cord supplied is intended for  

use in regions with mains voltage in the range of 100–125VAC  

only. Use only the furnished power cord that includes the  

appropriate NEMA 5-15P/ANSI C73.11 type attachment plug.
For use in geographical areas with mains voltage outside of the 

range 100–125VAC, it is necessary for the user to utilize a power 

cord rated and configured for operation in their region. Replace the 

supplied power cord with a cord rated for correct voltage operation.

 

Warning/Attention: 

 

To prevent fire or shock hazard, do not  

 

 

expose this appliance to rain or moisture. 

 

Pour prévenir feu ou choc électrique, ne pas  

 

exposé l’appareil à la pluie ou à l’humidité.

The Audio-Technica MCB4 Antenna Combiner allows the signals of up 
to four M3 Wireless In-Ear Monitor stereo transmitters to be combined 
onto a single transmitting antenna, reducing rack clutter.

A wide-band unit that operates over the 440-865 MHz range, the MCB4 
is designed to complement Audio-Technica M3 Wireless In-Ear Monitor 
Systems. It is also suitable for many other in-ear wireless systems (with 
external BNC antenna connections) operating within the 440 to 865 
MHz range.

The MCB4 provides one output and four isolated transmitter inputs. All 
RF connectors are BNC-type.  

Four jacks on the rear panel (controlled by the unit's power switch) 
provide 12V DC (center positive) to power as many as four transmitters 
operating on 12 volts at up to 600 mA each. Included with the unit 

are four DC cables appropriate for use with M3T (or like-powered) 
transmitters. The 12-volt supplies for powering transmitters are short-
circuit protected. The unit features all-metal construction for extreme 
durability and protection from radio frequency interference.

•  Broadband UHF operation (440-865 MHz range)
•  Combines the signals of up to four wireless in-ear monitor  
 

transmitters into one antenna 

•  Centralized power supply with ability to power four individual  
 

transmitters

•  Maintains clean signals with low distortion 
•  Includes hardware for front-mounting the antenna for improved  
 

performance

•  Includes adapters to allow the unit to be mounted into a single  
 

rack space 

Summary of Contents for MCB4

Page 1: ...ains voltage outside of the range 100 125VAC it is necessary for the user to utilize a power cord rated and configured for operation in their region Replace the supplied power cord with a cord rated for correct voltage operation Warning Attention To prevent fire or shock hazard do not expose this appliance to rain or moisture Pour prévenir feu ou choc électrique ne pas exposé l appareil à la pluie...

Page 2: ...4 Antenna Combiner 3 If desired connect the MCB4 DC OUTPUT to the DC INPUT of each M3T transmitter 4 Plug the included desktop power supply of the MCB4 into the DC power input The power supply is designed to operate properly from any AC power source 100 240V 50 60 Hz without user adjustment Simply connect the power supply to a standard AC power outlet 1 INPUTS 2 3 4 OUTPUT 12V DC 600 mA 1 2 ANTENN...

Page 3: ...ad connector Secure the connector from the back with its lock washer and nut tightening the nut firmly Connect one end of the provided BNC BNC cable to the antenna feed input jack on the back of the MCB4 Attach the other end of the cable to the back of the BNC bulkhead connector Make certain the bayonet twist ring is fully latched on the connector at both ends Finally mount the transmitter antenna...

Page 4: ...damage or failure to use product in accordance with instructions This warranty is void in the event of unauthorized repair or modification or removal or defacing of the product labeling For U S service return instructions and procedure please go to www audio technica com returninstructions A T U S warranty is to the End User only Except for A T U S said express warranty A T U S MAKES NO WARRANTIES...

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