Looking for some kind of mixer..?
I have a bunch of speakers. I'd like to set them up in various locations around the house, and be able to put through audio from two different computers that are right next to each other to all of them. But I want individual sliders for every speaker, or set of speakers, so that I can easily turn off the speakers not in use. If I wanna finish a podcast in the shower, or watch a movie, I can push two sliders up, mute the ones on my desk, and move to my desired area.
The ideal form factor for what I want is a mixer-board like thing with a bunch of sliders, outputs, maybe mute buttons and little else. I'd like putting this between the two computers on the desk so it could also be used to manage volume for the computer speakers.
Now, my question is; What am I looking for? I'm thinking somewhere around 20 outputs~