I just got the Video Essentials disk and balanced my system with it. After balancing the system and listening to some music I went back to the disk and ran a frequency sweep. I watched my Rat Shack meter and as the frequency was sweeping the meter was fluctuating anywhere from 3 -5 db through the whole range. This was happening with all the speakers. Is this common? I have heard about this with subs. but not all the speakers. Here are some details: I have a 16 x 20 x 9 ft. room, with the system along the long wall on one side and my couch on the other. The main speakers (floor standers) are about 12 ft apart and 1 ft from the wall and my listening position is about 12 feet centered in front of them. I have center speaker over the TV and the surrounds are mounted above and to the sides of the couch. My sub is located in the middle of the shorter wall on one side. My floor is hardwood with an area rug in the middle. Questions: 1) How important is a flat response to the sound? 2) Can I move the speakers to achieve a better response? If so, what direction do I move them? 3) If not, what are my options?