top of page

Zone Decoder / Selector


2 x 4 Ch Zone Decoder / Matrix Extender

Amperes 2x4ch Zone Decoder - TD6400

TD6400 works similarly with TD6080, as zone decoder for PD Series of microphones with front manual zone selector. However some improvements are added to make this unit 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.

ie. 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.

  • Integrated zone decoder & selector

  • 2 x 4 output configuration

  • Flexible starting address

  • Expandable to total 248 zones

  • Multi point paging inputs

  • Individual amp - zone connections

  • Configurable as group BGM/Paging for matrix setup

Connection Diagram 
Amperes PA TD6400 diagram
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 2.1 ( Nov 20 ) Available
Relay trigger bug fix
Please contact us for details

bottom of page