Also, B&W makes the DS3 for rears, they go right up in the wall, they are dipole, then you could get 685 fronts with HTM61 center.
Anything you buy, no matter what brand, make sure they all match. Same series. Don't mix series, don't B&W CMs with 600's Or Kefs IQs with XQs Or Paradigms Monitors with Studios.
Choose one.
The sub, is a whole other beast.
I hear B&W subs are pretty bad. Get Paradigms, Or if you listen to music, get Sunfire, Matthew Polks real line of speakers. (forger Polk Audio, he is not there anymore)
I tried Paradigm Seismic, and supercube 1, the paradigm had that low, low.
but the supercube had the volume. I couldn't decide, So I had to step to to Def Tech Supercube Reference, it had the low lows and the volume.
I cant use it more than 1/4 turn up on the volume, is too much, my room is 26 x 14.