Ewar Woowar wrote:

When I listen to some speakers, the stereo imaging is amazing - you can
pinpoint each member of the band on the stage infront of you, yet other
speakers do not have this property.

From a design point of view, how do you go about achieving superb stereo
imaging?

Thanks for any explanations...


Pete


It has a lot to do with the positions of the HF and LF drivers and your
listening position. These result in errors which can muddy the stereo
sound field. The only real solution is to use dual concentric speakers.

Ian

"Ian Bell" wrote in message
...
Ewar Woowar wrote:

When I listen to some speakers, the stereo imaging is amazing - you can
pinpoint each member of the band on the stage infront of you, yet other
speakers do not have this property.

From a design point of view, how do you go about achieving superb stereo
imaging?

Thanks for any explanations...


Pete


It has a lot to do with the positions of the HF and LF drivers and your
listening position. These result in errors which can muddy the stereo
sound field. The only real solution is to use dual concentric speakers.

Ian



Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three drivers.
Try a LS3/5a against a Spendor BC1 and you'll see what I mean.


--
Woody

harrogate wrote:


"Ian Bell" wrote in message
...
Ewar Woowar wrote:

When I listen to some speakers, the stereo imaging is amazing - you can
pinpoint each member of the band on the stage infront of you, yet other
speakers do not have this property.

From a design point of view, how do you go about achieving superb
stereo imaging?

Thanks for any explanations...


Pete


It has a lot to do with the positions of the HF and LF drivers and your
listening position. These result in errors which can muddy the stereo
sound field. The only real solution is to use dual concentric speakers.

Ian



Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three
drivers. Try a LS3/5a against a Spendor BC1 and you'll see what I mean.




I'll stick with my Tannoy Monitor Golds thanks all the same.

Ian

harrogate wrote:


"Ian Bell" wrote in message
...
Ewar Woowar wrote:

When I listen to some speakers, the stereo imaging is amazing - you can
pinpoint each member of the band on the stage infront of you, yet other
speakers do not have this property.

From a design point of view, how do you go about achieving superb
stereo imaging?

Thanks for any explanations...


Pete


It has a lot to do with the positions of the HF and LF drivers and your
listening position. These result in errors which can muddy the stereo
sound field. The only real solution is to use dual concentric speakers.

Ian



Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three
drivers. Try a LS3/5a against a Spendor BC1 and you'll see what I mean.




I'll stick with my Tannoy Monitor Golds thanks all the same.

Ian

On Wed, 12 Nov 2003 18:40:18 -0000, harrogate wrote:

Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three drivers.
Try a LS3/5a against a Spendor BC1 and you'll see what I mean.

An exception to that is the ATC SCM300As (which have four drive units),
which produce the most incredible stereo image that I have ever heard:

http://www.google.com/groups?selm=un...news.com&oe =
UTF-8&output=gplain

--
Anthony Edwards

On Wed, 12 Nov 2003 18:40:18 -0000, harrogate wrote:

Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three drivers.
Try a LS3/5a against a Spendor BC1 and you'll see what I mean.

An exception to that is the ATC SCM300As (which have four drive units),
which produce the most incredible stereo image that I have ever heard:

http://www.google.com/groups?selm=un...news.com&oe =
UTF-8&output=gplain

--
Anthony Edwards

In article ,
harrogate wrote:
Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three
drivers. Try a LS3/5a against a Spendor BC1 and you'll see what I mean.

But the centres of the drivers in a BC1 are further apart than on a 3/5a
- if you believe the dual concentric theory. Also, *in general* the
smaller the speaker overall, the better the image. Don't know where this
leaves the ESL57, except of course that it doesn't have a baffle to
diffuse the image.

Mounting any speaker flush in a rack etc as they do in some TV production
control rooms for appearance really does mess up the imaging.

--
*Don't sweat the petty things and don't pet the sweaty things.

Dave Plowman London SW 12
RIP Acorn

On Sun, 16 Nov 2003 01:44:16 +0000 (GMT), Dave Plowman
wrote:

In article ,
harrogate wrote:
Another strange point: speakers with two drivers almost always produce a
better and more sharply defined stereo image than those with three
drivers. Try a LS3/5a against a Spendor BC1 and you'll see what I mean.

But the centres of the drivers in a BC1 are further apart than on a 3/5a
- if you believe the dual concentric theory. Also, *in general* the
smaller the speaker overall, the better the image. Don't know where this
leaves the ESL57, except of course that it doesn't have a baffle to
diffuse the image.

It also depends how old the BC1 is - the originals were two-ways. BTW,
Lowthers are essentially dual-concentric two-ways, and IME they don't
image worth a damn!

Mounting any speaker flush in a rack etc as they do in some TV production
control rooms for appearance really does mess up the imaging.

Some of the finest imaging I ever heard was from flush-mounted
speakers. Think about it - there *is* no diffraction smear from the
baffle in a flush-mounted speaker.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

In article ,
Stewart Pinkerton wrote:
It also depends how old the BC1 is - the originals were two-ways.

The original BBC design omitted the HF unit, but I doubt many of these are
around domestically. It also had a most noticeable mid range 'suck out'
which the BEEB favoured in those days.

--
*If you lived in your car, you'd be home by now *

Dave Plowman London SW 12
RIP Acorn

In article ,
Stewart Pinkerton wrote:
It also depends how old the BC1 is - the originals were two-ways.

The original BBC design omitted the HF unit, but I doubt many of these are
around domestically. It also had a most noticeable mid range 'suck out'
which the BEEB favoured in those days.

--
*If you lived in your car, you'd be home by now *

Dave Plowman London SW 12
RIP Acorn