In article ,
Robert Morein wrote:
Your thinking has not caught up with the times. Back in 1968, the
Bose 901 provided an ad-hoc form of surround sound, which was a
craved-after novelty at the time.

'Surround sound' from a stereo signal using the out of phase component
to feed rear speakers was already understood well before then.

True, and I have played with the Hafler matrix.

However, the effect is not really any more accurate than the Bose
technique of bouncing sound around the listening room. Both are properly
part of antiquity.

The difference with the Bose technique of bouncing things round the room
is that it can't be turned off - and makes a right mess of the soundstage.
Anyone taken in by that sound truly had no idea what they were missing.

--
*If you must choose between two evils, pick the one you've never tried before

Dave Plowman London SW
To e-mail, change noise into sound.