Hello, So I currently use a set of Energy Connoisseur C-4's as my left and right with an AC-300 as my center. I am looking to get a larger set for my mains (moving the c-4's to surround) and was looking to get either a set of C-8 's (staying the same generation as the C-4's) or getting a set of C-9's. I have read a lot about the C-9's but have never found anything comparing them to the previous generation C-8's. Please let me know what you guys think. Thanks.