Component contributions to “sound stage”

Now I am only going by the numerous posts that have made this claim, but it would appear it's the power cable attached to your conditioner or amp.  🤣

I have a CD that is produced specifically to test the placement of your speakers.  Sorry I can't give you the name as I'm not at home for a couple months.  This recording consists of a dozen tracks with explanations of what instruments you are hearing and exactly where you should be hearing them.  It's proof positive that the sound stage is in the recording.  Sure your equipment can play a part in the enhancement of the sound, but you can't reproduce something that's not there to begin with.  Since the recording is designed to maximise speaker placement, it would stand to reason this is the place to start?