Hi Ambience, for your system, forget the LCR4, go for the VSA VisiUN MkII which is really an SR on it's side. Trust me, you won't regret it. After setting up one for a client and experienced the totally seamless wall of sound with vocals coming from smack in between his 115" screen, I just had to get one for myself. His theater is powered by 3 Rowland 501 monos upfront and a lexicon multichannel for his 4 in ceiling revel speakers. Next up, a pair of VSA Shockwaves.
My system will be SR MkIIIs and VisUN Mk2 and Ambience SS in walls for rears powered by a BAT VK-6200 complemented by a pair of Ambience SS Bandpass subwoofers with built in Redgum amplifiers.
The VisiUN is the closest you can get to actually having a third SR in the middle.
Contact your dealer for details or e-mail Albert himself for more information.
