I would suggest that you measure the speaker and room response of each channel independently. See if there are certain frequencies that are being attenuated by the room in one channel more so than the other. As previously mentioned an opening or other asymetrical occurance in the room can throw off the balance. Once you find what the frequencies are being affected you can make some modifications in terms of accoustical treatments to the other side to balance things out. If you are lucky, the frequencies affected are on the high side (say 1k and up), and then some absorbing material (sonex, RPG, or ownes corning panels) may be all you need. If the problem is lower, it's still a solvable problem, but likely more complex.
Balance control vs. Speaker placement
For whatever reason, my system always slightly favors the left, my guess would be the furniture on the left vs. nothing on the right. I have used several amps and speakers and the left is always slightly favored.
I have a test CD that exposes this in greater detail. On this CD they suggest that you either move a speaker forward or back to compensate instead of adjusting the balance control. Any thoughts as why this is prefered? It sure is easier to dial it in with the balance control.
I have a test CD that exposes this in greater detail. On this CD they suggest that you either move a speaker forward or back to compensate instead of adjusting the balance control. Any thoughts as why this is prefered? It sure is easier to dial it in with the balance control.