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.