I'd replace that C22 center pronto. JBL Studio 230C or, if you are willing to ignore the "timbre matching or death" advocates, Chane A2.4 for the center.
Rears you can eventually replace with the JBL B17 from Amazon for $150/pair.
But the center is going to be the huge weak link when watching movies.
~ Are you a "geek hobbyist" obsessed with squeezing out that last 5-10% improvement? The economy will thank you...especially the Chinese one. Or are you more of a get-set-and-forget "casual user" who simply wants to increase your enjoyment of movies, TV and gaming? Relax, HT isn't rocket science, nor does it have to cost an arm and a leg---especially if you ignore the aforementioned vocal minority. And remember to smile...it's just a silly hobby, after all. :)