You are hired to do production for a concert. The concert will include multiple acts from solo artists to full bands. You have acess to whatever you need in terms of gear; your budget is unlimited. They are also paying you $20,000CAD if you are successful in doing a good job. There are a few catches: The room is 30' high by 30' wide by 65' long and it's all hard reflective surfaces that you cannot cover with anything and the promoter wants to keep volume in check as much as possible.
You accept the job because it pays too well not to. What kind of rig do you put together so that the promoter is happy and you get your money?