Thanks for your inputs...I do have the center,surrounds and sub as off. I put in starwars , phantom menace and I usually love to listen to the THX introduction. At -10 it sounded quite wimpy...For the race scene, I had the level at +3 to get some good effect. I know that I do not have the center,surrounds and sub ( yet ), but I am really surprised that my fronts need +3 to give me good effect...