Monitor 70's < swan diva 6.1

centauro74
centauro74 Posts: 10
Will I get a big improvement if I change my monitor 70's to a swan diva 6.1 or 6.2. I have a good subwoofer MFW-15 so lows are not problem. I mostly watch movies, I'll say 90/10.
Samsung HP-T4254.
Denon AVR-3311ci, Emotiva XPA-3.
Polk Audio Monitor 70's and 30's, CS2, FXi-A6.
Sony PS3, BDP-S470,Toshiba HD-A2.
AV123 MFW-15 "The Beast".
Logitech Harmony 880, APC AV H10.