Hi,

"Stewart Pinkerton" wrote in message
...
On Fri, 31 Mar 2006 17:26:22 +0100, "Keith G"
wrote:
But a little disconcerted to see this:

"Bob Stuart and his team will demonstrate 'Trifield', a technique to produce
a stable front image by playing stereo sources on three front speakers.
Listen to the comparison and see if you agree."

...kinda 'Mono with outriggers'?? - Like a bike for a kid who can't
select/set up the right kit to get a pin-sharp, central image with
stereo....???

Nope, more like a return to the original text. Alan Blumlein (who knew
a bit about stereo!) always reckoned that three speakers were
necessary for best results.

True, and this was one of the reasons that he used the word
'plurity' in his patent applications for both speaker and microphone
arrangements. He was at EMI at the time, and that one word
confounded Decca's attempts to work around his patents
for ages, even twenty years after he filed them.

When I had a smaller listening room I ran my home cinema in a
"3.0" arrangement for a while, and it was ok - I'd much rather
have the centre channel than the rears, if it was a choice. It
could probably work well for music recorded in arrangements
like the Decca Tree, but I'm not so sure about multi-channel
rock recordings.

Somehow though I doubt we'll be seeing a mass market move
to three channel audio anytime soon! As Keith says, getting a
decent stereo image is just an exercise in determination and
setting things up right.

Regards,

Glenn.