If you have the room for a pair of LaScalas, GO FOR IT!!! Some people say that you will need a SUB with them, but I've been having a pair now for the past 18 years, and I will tell you that they will shake your teeth loose!!
If room is a factor, a pair of Heresys with a SUB will do great!!
I don't think there is a speaker on the planet the size of the Heresy that will crank out the awesome sound and volume that they do. I know, because I have a pair of they also. No matter what pair of Klipsch speakers you decide to go with, you can't go wrong because Klipsch speakers are the Best on the planet.