'Ckoffend', I may laugh here, but you do have a point. Research suggests that significant interprocessing goes on in the brain between sensory modalities, especially the visual and the auditory. Center dialog with properly set up A/V systems tends to be subjectively attached to the visual subject by such intracranial processing; just closing the eyes can noticeably change the sound for many people.
B&W many years ago compared different loudspeaker finish colors on how this variable affected the subjects' perception of the sound reproduction. The differences were significant, and the results followed along the lines you might predict. I, for one, always try to design an audio set-up for it's effective visual support, in psychological terms, of the musical illusion I'm seeking to achieve. I don't like fancy and distracting wood finishes on the face of loudspeakers for this reason, whatever the girlfriend acceptance factor.
