Thanks for the suggestions guys! Gotta love this forum. I'll check my OPPO 980 as well as some of the 990 settings later today. I've recently added some acoustic absorbtion at the right speaker's first reflection point so I should probably do another calibration anyway. However, I must say treating one FRP did not cause what I heard last night. I checked both with and without the treatment and the disparity in individual speakers was equally pronounced both ways. I'll report back later today. Again, thanks for the suggestions.