Panning is subjective..if you use separate mono channels and don't do it, you're combining the l+r into each output channel equally so there's no true stereo separation. I pan l+r as exampled in previous pic in smaller venues where I use the Mauis. But in a large venue, like 2 outdoor tents I've played at, I don't pan.I don't want an instrument produced on one side heard by people in only one tent when left speaker is feeding one and right another or placed in another direction. Depends on distance and configuration needed to spread all the music.