How does speaker placement affect the width of the soundstage?

The Rhodes on this track is perceived as wider than the 26 foot width of my room, wrapping back into the room, even though the speakers are ~7.5 feet center-to-center.  Stuff doesn't get much wider than this.  A great test track for your system.

https://youtu.be/tvaGNfk3Ipg

Thanks, all.

If you go to the Cardas cable website they have a speaker setup guide .

myself i wider speakers then just toe the in a little and they have a big soundstage .

what type of tweeter you have ,and if it’s in a wave guide better still.

In addition to/in conjunction with speaker placement, the acoustics of the room have a major influence on soundstage.

Of course speaker placement is everything to soundstage but without seeing a picture of your room layout, it is impossible to pinpoint your shortcomings.