What is the best freq/db for a home audio system
I am currently in the process of rebuilding my home audio system. I have a cerwin vega 10 inch powered sub and an infinity 15 in powered sub. These will obviously handle all my bass. I have all ready ordered DT's mythos 1's for my main's and I am looking at the 3 or the 8 for the center. What I am curious about is when i am looking to buy the center and front/rear surrounds, what types of freq's and db ratings should I look at. The differnce between the 3 (45) and the 8 (38) is 7 Hz. Is this enough (on the top side) to make a difference. When going with the surrounds should I get something that is up around 60 Hz or is 40 HZ suitable. I know in order to have the most sound you want a large range, but how far do I want to go up or down?