We use JBL Eon G2's for most apps. If you shop wisely you can buy them on the cheap and they sound good, are easy to repair, parts are readily available and they are rugged. When we need low frequency support we use two PRX subs. Last year we played a small BBQ fest outside. The sound guy had problems and couldn't deliver the FOH system. I offered to put something together on the quick. 4 Eons, 2 Subs and used Peavy PR
-12's as monitors and we had many, many compliments on the sound. Wasn't sure how well two Eons on a side would work, but we had no issues, and it was quite loud. Used a DBX driverack for EQ.