Hi I've been running a set of Mission FS2AV's off a Marantz 4200 for a while now and am very happy. However I feel like an upgrade now...time to sell the fs2's? I also own a pair Mission M73's which i was thinking of matching up with a M7C2 centre and M7DS rears.....worry about sub later. I know I should get a demo but does anyone have any opinions on what sort of sound difference this setup would give me compared with the fs2s?!!! Would i be downgrading without realising it?? I've also been looking at the new Mission M3x range - has anybody got or heard these? Any opinions appreciated!