I'm in charge of setting up the audio system at my work's new building (small business). What I need is to be able to independently control the volume for each speaker (or channel). Preferably around 4-6 speakers (the bosses think they each only need one speaker near their section of the room).
Two people sit on one side of a workbench, and one person sits on the opposite side (so two speakers for the left side, two for the guy on the right). They also want a set of speakers in the adjacent room. The catch is they want to control the volume at each of the speaker(s). I know there is volume control for individual channels, but I'm not sure how I should do this setup...