How do you squeeze an entire band into one set of speakers? The answer is a Live Sound Mixer from American Musical Supply. In addition to providing individual level and tone controls for every input, a live mixer will often feature a graphic EQ to match the sound to the venue, as well as reverb or other effects. Most mixers are stereo (2-Bus), but 4- and 8-Bus models provide additional mixes for monitors, effects, recording, and more.