Hello All . Rookie with an avr and have a question. I recently swapped out my center speaker to see if i would like it better. I stuck the new one in the system without changing any settings even though it was a bit larger. It sounded good, very good. I reran Ypao with the new speaker and now the sound it rather strident and bit metallic. I have manually adjusted the cross-overs, tried different cross-over settings and confirmed that the distance is set correctly. So does anyone have an idea why the sound would change so drastically?