I thought the center that came with the SX system was a little weak, so I went ahead and ordered the AV-SC center. Well, I got it today, hooked it up, and noticed a difference in the sound right away. It was definitely fuller, and had a lot more impact than the SX center speaker. Dialogue sounded a lot more natural. Since I was so impressed with it, I might go ahead and purchase a pair of their bipolar speakers. Then I'll definitely have a system good enough to do me till early next year, then I'll be buying a set of Axiom speakers. Then all I'll have to do then is decide on WHAT Axiom speakers to get, and what finish.