I set up Friday night, with SAC and 4 DR200s, and my 15" subs. DRs were 2 stacks of 2 on tripods, left and right of the stage, which was set up between two buildings. There were about 100 seats under a tent, so it was a nice little setting. After getting everything running and a track playing, sound was great, well over 105db at the back. We tarped it all, and went home (left a guy to stage-sit, of course).
Got there the next day, untarped, and on come the Zumba dancers/exercisers at 10AM, everything went great, ended about 11:15. They asked the MC to do some announcments until the next event on that stage at 1:30. I put on the music, set up his wireless mic to duck the music when he spoke (easy peasy in SAC, and impressed the heck out of the MC), and went off to grab a bite to eat. When I got back, the MC ran up to me and said that the head honcho wanted sound coverage in the vendor area. My instructions were to make this person happy... so I grabbed the left DR stack, took it outside the courtyard, put it up as high as the tripod would go, pulled a speaker cable out there (glad I made them 125'), and cranked up (limiters already in place, of course). Took me about 5 minutes, and that impressed the heck out of them too.

Things carried on, and I walked around a bit.. coverage was decent enough and volume was sufficient for announcements in the vendor area, and since I was already "going the extra mile" already I proceeded to eat my (now not so warm) lunch. About the time I got done, the rain sprinkles started. On went the tarps... but the event continued, and coverage and volume still were quite good. Couldn't really tell a difference, honestly.
The "Ask The Expert" symposium started on the main stage, with only the tarped right stack for coverage. Of course it was plenty... and I shifted the pan in SAC to throw more sound outside than inside, so it was broadcast to the whole event. It must have worked... because attendance picked up about 5 minutes in.
All through the day, they were giving away prizes and announcing the names over the PA. This led to my little moment of triumph. A gentleman walked up to me and said "I was almost down at the GEM and heard my name called for a prize. Is this where they were announcing from?" I smiled.. and pointed him to the prize people.
The GEM is a dollar theatre... almost a quarter mile away. All with 2 8 inch drivers, a gob of Piezos, and 300 watts per (extremely well designed) cabinet.




Here's some illustration. Click to enlarge.