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I'm piggy-backing off "Can I daisy chain two mixers together for more input channels". In that question, I read that I can do that, so long as the submixer is going into the powered mixer through RCA stereo inputs.

My situation is that because I only have a 12-channel snake, I don't have any more wires run to the front of house for more inputs, so putting the submixer back in the soundroom doesn't seem like an option (unless I more had 50' XLR cables). Is there a way to put a sub-mixer at front of house to create more channels? Am I looking at having to run a 50' long RCA from the sub-mixer to the soundroom? I was wondering if I could send it through one of the existing XLR snake cables?

Thanks for any help, as I'm new to sound systems.

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The connection between sub-mixer and main mixer doesn't have to be RCA., it could be jack to jack, or XLR. With 50', you may need balanced leads, so it will depend where physically your snake is, or use a stereo or mono feed with shielded cable between sub and main. Or use a D.I. box to help the signal.

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You can certainly put the submixer on stage in order to fit more in your snake. You certainly want to avoid running a 50' RCA connection if possible.

Check the outputs of the mixer you want to use as a submixer. It should have balanced main outputs on either XLR or 1/4". If there are balanced XLR outputs, connect them directly to the snake and then into XLR inputs on the main mixer at front of house (FOH).

If there are balanced 1/4" outputs, then I recommend 1/4" TRS to XLR adapters which would then be connected to the snake.

If there are neither of the above but there are 1/4" unbalanced outputs, then I would connect them to passive DIs and connect the DIs to the snakes.

If you really only have RCA then I recommend RCA to 1/4" TS adapters and then into passive DI, or DIs (active or passive) with RCA inputs.

Also, try to have the submixer as high off the ground as possible and off to the side, to prevent damage.

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You might consider going for a remotely controlled mixer as sub mixer on stage. Or even moving over to that totally, not needing the snake at all. They have gone down in price quite a lot, so might be in your reach.

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