Stagepas 400i and 600i : How Do I Add Monitors ?
1) Both of these models have unpowered L and R monitor outputs with a volume control that is independent of the main powered outputs. The mix will be the same as the powered outputs.
2) These outputs are line level and will not drive a passive speaker. A powered monitor connected by a instrument cable is required. A good choice is any of the Yamaha MSR series.
Hint: Do not use a speaker cable to connect powered monitors. Use unbalanced line level instrument cables.