Just a quick anecdote;

When I built my home theater/family room I had the rear wall wired for two rear speakers. The speaker I installed were the CSW Newton IW300, these speakers have basically the same layout that this system uses for a center. When I installed the speakers I hooked them up directly as the mains to get a sense of how they would sound. I can still remember standing in shocked silence while these two compact in-wall speakers rocked the whole place like nobody's business. To check for rattles I put on some RHCP and let flea do his thing on the bass. Not only did these speakers NOT rattle, but the bass response was tight and fast. I was standing there slack jawed when my wife turned to me and said; " This is great, now you can get of all these other speakers" Well that just ain't going to happen any time soon, but I can ABSOLUTELY say that these speakers are of high quality, and a great value to boot.