Sounds stage beyond the speakers width is mostly room reflections. Try taking the speakers outside and see how they sound. I would bet they sound pretty different.
Soundstage and image height, does it exist?
On another site, there is a discussion on soundstage, and there are a few people clamming, that, since there is no vertical information encoded on stereo recordings, that soundstage height does not actually exist. It is a product of our minds filling in missing information.
Are they correct?
Please explain your position, with as much technical details as you feel needed.