Hey guys, my first post here. My amps are Rotel RC1070 and RB1070. I'd like to upgrade my B&W685s to a pair of floor-standing speakers. The budget for them is around 3k usd, and I'd like to choose from B&W CM7, CM8, or CM9. The thing is, I think the mid/bass drivers of CM8 is a little too small, and the cabinet looks too thin, u know. So maybe CM7 or CM9 is the better choice? I know CM7 is discontinued now, but the local dealer has one pair left, and they can sell me them at about 2100 usd. That's a pretty cheap price here in China. So, can anybody gimme some suggestions? Is there really such big difference in sound quality between CM7 and CM9 (priced at around 3400 usd)? Any suggestions are welcome! Many thanks!