Here's a copy of what I posted on Facebook.
Before the software on my phone crapped out I measured avg 101db at the stacks, on the side with the GC25's 10ft away. (the small models on the poles) 1/2 a block a way I was still getting avg 90db. At a full city block away I was still getting in the upper 70's. You could hear the music at a block away, but it was not much above ambient, just enough to hear it pretty clearly. Announcements however, were sharp and clear even block away, getting some nice bounce without screwing up the intelligibility off the buildings. The DJ bumped it obviously for announcements. Pretty astounding for a pair of cabs loaded with 5" drivers. My software died before I could measure the big stack side, but the music on it was good for over a block. Announcements for 2 blocks. Of course with this setup we had some pretty good side nodes from the subs. Surprisingly little loss in front of the cabs due to the unintentional cardioid setup. The bottom end was bangin' everywhere. Special thanks to Matt Hoisington for the loan of 14k watts worth of QSC goodness to run this stack. We never even warmed them up.
To expand on this a bit, and since it's here where I can throw all the MVW bullshit I want, it was staggeringly good. Props to DJ Mike, he pimped the cabs many times during the show. I saw several people walk up to them and look at them askance. But none of them talked to us.
RachE15's are the deal. Close to the 18's in output, the sound quality of the 12's. My go to sub, period. GC25's are just insane. The quality and output of this teeny box has to be heard to be believed. We started out with xover points at 70hz to the tops, and they were just coasting. I had Doug move it 60, then they started moving some air. The GC46's are going to get some revising. With what we've learned with the 25's, I think it can be improved. They sounded great, better than anything in their size and price class, it's just the GC25 is a game changer. 4 of them to a side would have taken care of the event with the same coverage we had. After the show we ran the 4 GC25's with a RachE12, 15, and 18 together. And they kept up. A pair of GC25's with a single RachE 15 is a magic combination.
They want MVW sound back for the 4th of July. Sound for 6000. Thinking I'll have to break out the WT8's from storage for that one. A pair of WT8's per side with 4-6 GC25's on top would be a system to be reckoned with.
We did lose a driver. What the hell, what kind of test is it if you don't blow something up? One of the 12's started popping. We were running nowhere near it's rated power, pretty sure it's a defective driver. Doug suspects the spider came loose. I'll find out when I pull it.