I have 2 x DZR10's, 2 DZR12's and 4 DXS15xlf's.

I do sound for a band that has a lot of crowd singing participation, i use the DZR12's as FOH tops for crowds up to 700 people. I put them on 4m crank stands. Having them 4m above the audience (sometimes 5m if i can get the stands on the stage) means they provide great even coverage for 700 people. The DZR12's are maybe the best pro'sumer speakers out there. They sound great even when pushed hard.
They won't compare to something like a Martin audio CDDlive15, but that speaker costs £3K+ each.
The DXS15xlf's are great musical deep sounding subs, again, great for the money.