"All Ears" wrote in message
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"Bruce Abrams" wrote in message
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snip

You just can't reproduce sounds from behind you with
speakers in front of you. It's impossible.

This is not entirely true, actually the ears works as a filter, so that
sounds comming from behind will have a dramatic drop in the 8 kHz area.
This
means that if you cut the 8kHz area from a sound image, it will appear as
the sound is comming from behind.

That's not true. Your logic is faulty. You just effectively said that
since the sky is blue, anything that is blue must be the sky. Just because
the ear filters 8 kHz, sounds from the front that are cut at 8 kHz will not
automatically be located to the rear. There are directional clues that will
be missing. You just can't make a sound produced in front of a listener
sound like it's coming from behind the listener.