Hello to everyone, this is my first thread. I have been using my present speakers (which are CV AT15's) for twelve years and I love them as much today as on the day we meet. I'm now upgrading my present 4.1 system (I'm laughing to!) to a 5.1 or 6.1. I plan on keeping my AT's on a total different system powered by a different amp (Adcom GFA-555 II). I will us them as my second and third powered sub's. I'm I wrong to think that I should have all the same size voice matched speakers. I plan on buying a center channel speaker that has two 6.5" drivers but the guy at the store said with that center my front left and right should be larger in size. I know that CV's are not the greatest speakers made but in my ears I think there the greatest. With that being said. Why are CV speakers never rated that high, that's if you can find someone evaluating them? Let along selling them.