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Zone Decoder / Selector Series

2 x 4 Ch Zone Decoder / Matrix Extender

Amperes 2*4 Channel Zone Decoder/ Matrix Extender- TD6400

Flexible Amp - Zone configurations, suitable as matrix zone expander

Expandable to form 248 zones with cascading of up to 31 units

TD6400 works similarly with TD6080, as zone decoder for PD Series of microphones with front manual zone selector. It is more flexible ie, it is divided into 2 groups of 4 zones each. This is useful in zone grouping setup when used with Matrix controller for zone expansion. It shall reduced the number of unused zones within the group.

Example :  If an output 1 from Matrix is to serve 3 zones ( zone 1 to 3 ) and output 2 with 4 zones ( Zone 4 to 7 ), only 1 zone shall be unused, as compared to using TD6080 which would have total 9 unused zones by using 2 nos of the unit.

Starting zone address is now flexible and not tied up to the unit's starting address. Each group would have arbitrary starting address, such as group 1 with starting address of 9.

TD6400 would be a perfect component to be used with Matrix controller for Zone Expansion, as illustrated in the diagram below.

Independent address setting for each group, thus minimizing unused zone wastage

  • Integrated zone decoder & selector

  • 2 x 4 output configuration

  • Flexible starting address fo each group

  • Expandable to total 248 zones

  • Multi point paging inputs

  • Individual amp - zone connections

  • Configurable as group BGM/Paging for matrix setup

  • Programmable All Call relay trigger for remote paging or front button All Call.

Technical Specifications

Power requirement :    



Switching channels 


Amplifier channels

Mic Input circuit

Switching connection  


Audio :

Input impedance 

Output impedance 

Freq response 

Audio input   

Audio output 


Dimensions (mm) :

Weight :   

24V DC ; 0.5A

6 W

2 x 4 

31 ( 248 zones )


Front Switch

RS485 from PD Mic

Line 10 K Ohm

600 Ohm

70 - 15 KHz

Line ( 1.2V )


RS485 19.2 kbos

482 X 44 X 180 

2 kg



Instruction Manual

ACAD Image

Note :

Firmware Ver 2.20 ( Oct 22 ) Available
All Call relay trigger option added
Please contact us for details

Connection Diagram
Amperes 2*4 Channel Zone Decoder/ Matrix Extender- TD6400 (Connection Diagram)
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