Plus with a DEQX (I owned one for a while), you can really, really, really make them sound however you want. Just dial in a house curve and they will sound nice and full.
Also, a small but beautiful sounding tube amp will really make the panels sing. Think SEP or SET, you really don't need more than 10 watts if you're driving each section directly. 10 watts on the mids, plus 10 watts on the tweeters and using the big subs underneath that - you will get a very big, powerful sound that is also quite beautiful.