After receiving much good advice in this forum I have decided to upgrade my center from a Polk Monitor cs1 to a Polk Monitor cs2 My mains and rears are monitor 30s. I know that CSi5 is a better center than the CS2, but I would then have to eventually upgrade my mains to the RTi bookshelf series. I`m kind of limited as to shelf height on my wall unit ,so I have decided to remain with the monitor 30s. My only concern is whether or not the CS2 sound quality will be better than the CS1 or am I just wasting my money?