I have Infinity Entra Three for Front L/R and Entra ones for Rear L/R, but I have been using a crappy KLH center from a HTIAB. I was thinking of getting an infinity entra center two from ebay, but I noticed several other infinity centers around the same price. This got me thinking, hey if its the same price, and its a newer series, is it bettter? More importantly, should I buy something outside the series, when I already have (and am very pleased with) almost everything from that particular series. I want it to have CMMD and not be a step down from the entra series. Actually, I was hoping for a step up. For example, would an alpha series center match my entra system and would it be better than getting the (obviously) well matched entra center two, or should I "stick with what I know" and get what I think would be a great center (entra center two)?