Speakers "Disappearing"


I have read a lot about speakers "disappearing" so that one can't tell from where the sound is emanating. But, what about all the stereo tunes where the recordiing engineer intentionally pans the music to come from one side or the other? Can the speakers be made to "disappear" in that situation? Or, is it just the nature of the particular recording?
rlb61
@georgehifi - I downloaded the Chesky DJ37 sampler and setup test disc from HDTracks.com. Thanks much for the recommendation.
Useful CD for setup of the room. Be careful though, that you don't let it go passed track 27 as all the next tracks are for techs and bench testing only.
Pierre Varney discs suit  Is even far better again, but more for bench testing, and very expensive, if you can find a set

Cheers George
My Magico Q3s disappear every day both on LPs and CDs took me years to accomplish this its no easy feat. 
Thanks for the wonderful comment I'm sure your speakers are much better JOKER!!!
I have read a lot about speakers "disappearing" so that one can't tell from where the sound is emanating. But, what about all the stereo tunes where the recordiing engineer intentionally pans the music to come from one side or the other? Can the speakers be made to "disappear" in that situation? Or, is it just the nature of the particular recording?

Yes, even with panning, the speakers can still 'disappear;.

Even if the music itself is being panned, it can still sound as if it is not emanating from the speakers. There can still be a soundstage created by the speakers, in which the music is being panned within.