It is too late to return the Center and Surrounds, and I'm likely trading up to the Rti10's for the front. After extensive listening, I do feel the female vocals (Sarah Brightman) don't sound quite as smooth through the Cs1's as the Rti8's. Dang! I wish I'd found this forum BEFORE I purchased the Cs1's and monitor 30's. They did sound MUCH better than similar or more expensive offerings from Infinity, and JBL in the same setting. Oh well!
NONE of the local shops (I live near Oakland California) carry the LSi series- I've got a long drive today if I want to hear them! On the other hand, pairing LSi 9's or 7's as fronts with the Monitor 30's as surround-and Cs1 center makes no sense. Oh well, maybe I'll just sell it all and get a boombox!