Hi, I have the Logitech Z906 5.1 surround sound system, but it doesn't allow me to independently configure right vs left channels. I can only configure the surround channels as one level. My problem is that my couch is next to a wall so my right surround speaker is basically touching the wall but the left surround is out in the open in the middle of the room. As a result the right surround is louder by about 2.5db, my guess is because of the sound bouncing off the wall next to the right surround speaker directionalizing it, while the left surround speaker's sound is spread in multiple directions. My question is, knowing that the right surround speaker will always sound louder than the left, should I set the level of the right surround speaker to that of the rest of the system and have the left be lower, or should I set the level of the left surround speaker to that of the rest of the system and have the right be louder? For extra context, I did my measurements sitting in the middle of both speaker's (which is the middle of the couch), but I always sit next to the right surround speaker (on the right side of the couch) when watching TV. Thanks in advance.