I rented one of these to try it out. Sounds pretty good. Can go very loud but I'm just messin around in a house so not running anywhere near max. Mmmm - two would be even better and the bass would reinforce.
I think these are great for say a little band with a singer, but for EDM more bass capacity is good. Could do with an add-on subwoofer for even better results, but for lots of smaller events a pair of these is all you need even for EDM.
My ears are getting picky though. I want even better sound. Maybe I'll rent something else next. Like a 3-way speaker.
http://mackie.com/products/srm450/