I use 3-way active Procella Audio 815-HE for L/C/R with built-in ICEpower 2,000W amps(!) and the 'identical voiced' Procella 8 for surrounds, which is as close as I can get to full range surrounds. Just a 5.1 as my room is just not big enough for 7.1. I am planning to knock down this house and build a bigger one in its place, complete with dedicated home cinema, 7.1 of course. See procella-audio.com/speaker.html
Spoiler alert: I own the company, together with Anders Uggelberg (
www.procella-audio.com/contact.html)
Gerben.