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AB International 713A amps with built in active crossover

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Hello there;

I own some AB International 713A amps with built in active crossovers.
I want to change it from 3-way to 2-way like the model 712A.
Does anybody know or own a model 712A to give me some info on the jumper settings of that crossover-pcb.
Seems like the pcb is standard for all models ,just the jumpers change.
Thanks in Advance;


front 713.jpg

pcb 713.jpg

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