Xtant 404m Help

[Huntsg]

I have an Xtant 404m amp with 2 accessories installed. Both the 12 db LPF and 12 db HPF crossover modules are installed. I'd like to remove the LPF which is on the amp's rear channel and is driving my sub so that I can just run the rear speakers thru the rear channel. The problem is that when I pull out the LPF (or the HPF for that matter) no sound goes thru the channel. Does anyone know what I need to do to be able to remove the LPF and get it to work? Is there a jumper or switch I need to set? Thanks for any help.

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[grh]

inside the amp you will see that the filters connect pins from one side to the other.

when you remove the filter, these pins remain unconnected.

you need to find some jumpers, and bridge these pins after removing the filter. then it will work as a full range properly.