Tony,
You did answer my question.
When I too play stereo recorded stuff thru my PC, and change the config of my PC audio software to the 4.1 or 5.1 selection, I hear exactly as you described, there seems to be a greater depth in the sound output.
Its good to hear that this depth is noticed with the keyboard too, not just on CD/MP3s.

It would be nifty if that stereo sweet-spot/sweet-area thing opens up or expands too. Will see...


[This message has been edited by MrEd (edited 04-06-2006).]