"it is necessary to point out that this is true of all surround (pseudo or otherwise) and even stereo set-up" ... not any more; go to www.aisound.net. A great British development that could revolutionise everything we traditionally understand about stereo - and surround.

I have a vested interest as the PR for the start-up company (Airsound LLP) that has developed and is licensing this invention, but don't let that dissuade you from accepting the truly revolutionary significance of Airsound. You had to hear from somewhere.