loudspeaker stereo imaging
 

Jim Lesurf wrote:

In article , Ian Bell
wrote:


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.

Interesting. I'd suspect most people wouldn't immediately think of the
Quad
ESL63's as 'dual concentric'. :-) More like 'multiple quasi-concentric'
or 'phased array', though. They image quite well, though.

In some senses this is not surprising since they have little LF response and
most positional information is in the higher frequencies.

Ian

loudspeaker stereo imaging
 

On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.

Then walk around the room and be enlightened.

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

loudspeaker stereo imaging
 

On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.

Then walk around the room and be enlightened.

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

loudspeaker stereo imaging
 

On Thu, 13 Nov 2003 17:03:31 +0000, Ian Bell
wrote:

Jim Lesurf wrote:

In article , Ian Bell
wrote:


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.

Interesting. I'd suspect most people wouldn't immediately think of the
Quad
ESL63's as 'dual concentric'. :-) More like 'multiple quasi-concentric'
or 'phased array', though. They image quite well, though.

In some senses this is not surprising since they have little LF response and
most positional information is in the higher frequencies.

Contrary to popular mythology, Quads are in fact flat to below 40Hz,
it's just that the bass response is extremely clean, and they won't go
*loud*. Hence, they don't have the 'slam' of many box speakers.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

loudspeaker stereo imaging
 

On Thu, 13 Nov 2003 17:03:31 +0000, Ian Bell
wrote:

Jim Lesurf wrote:

In article , Ian Bell
wrote:


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.

Interesting. I'd suspect most people wouldn't immediately think of the
Quad
ESL63's as 'dual concentric'. :-) More like 'multiple quasi-concentric'
or 'phased array', though. They image quite well, though.

In some senses this is not surprising since they have little LF response and
most positional information is in the higher frequencies.

Contrary to popular mythology, Quads are in fact flat to below 40Hz,
it's just that the bass response is extremely clean, and they won't go
*loud*. Hence, they don't have the 'slam' of many box speakers.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

loudspeaker stereo imaging
 

"Ian Molton" wrote in message
...
On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.


Then walk around the room and be enlightened......

.....whilst you watch the smoke curl upwards gently from your tweeters :-)


Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

loudspeaker stereo imaging
 

"Ian Molton" wrote in message
...
On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.


Then walk around the room and be enlightened......

.....whilst you watch the smoke curl upwards gently from your tweeters :-)


Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

loudspeaker stereo imaging
 

"Ian Molton" wrote in message
...
On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.

Then walk around the room and be enlightened.

What a bloody horrible noise! Just tried it - what has it enlightened me to?

Rob

loudspeaker stereo imaging
 

"Ian Molton" wrote in message
...
On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.

Then walk around the room and be enlightened.

What a bloody horrible noise! Just tried it - what has it enlightened me to?

Rob

loudspeaker stereo imaging
 

Ian Molton wrote:

On Wed, 12 Nov 2003 09:27:19 +0000
Ian Bell wrote:


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.

I'd be highly sceptical of that.

Put *any* set of speakers in your room, and play a (say) 8-10kHz sine
wave out of both speakers.

Then walk around the room and be enlightened.



That's because of room acoustics not the speakers. Given an acoustically
good room (a rarity indeed), what I said still stands.

Ian