Biwiring
 

On Sun, 14 Dec 2003 13:41:43 +0000, Nick Gorham
wrote:

Stewart Pinkerton wrote:

On Sat, 13 Dec 2003 17:01:09 -0000, "RJH"
wrote:


Well, thanks for all the opinions. I can't really argue with the technical
knowledge you all have, and I looked at Jim Lesurf's (I think) page a while
back and that seemed to say 'no measureable difference'. I've given it a go
with some old qed 79 strand biwire stuff I happen to have, and I'm afraid I
think it sounds a bit better, particularly extremes - bass and treble.


Interesting, since it's only around the crossover that biwiring has
even the slightest theoretical advantage.

I can't convince myself that this may (or may not) make a difference,
but one point is that while both wires see the same voltage, the cable
to the treble posts are only carrying the current produced by the treble
part of the signal.

And this has relevance, how? Ordinary wire is known to be linear to
better than -140dB, so there's absolutely no question of any
intermodulation distortion being caused by the bass and treble
currents sharing the same wire.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Biwiring
 

In article ,
Nick Gorham wrote:
I can't convince myself that this may (or may not) make a difference,
but one point is that while both wires see the same voltage, the cable
to the treble posts are only carrying the current produced by the treble
part of the signal.

How do you work this out, given that it's paralleled at the amp end?

--
*Never test the depth of the water with both feet.*

Dave Plowman London SW 12
RIP Acorn

Biwiring
 

In article ,
Nick Gorham wrote:
I can't convince myself that this may (or may not) make a difference,
but one point is that while both wires see the same voltage, the cable
to the treble posts are only carrying the current produced by the treble
part of the signal.

How do you work this out, given that it's paralleled at the amp end?

--
*Never test the depth of the water with both feet.*

Dave Plowman London SW 12
RIP Acorn

Biwiring
 

Dave Plowman wrote:

In article ,
Nick Gorham wrote:

I can't convince myself that this may (or may not) make a difference,
but one point is that while both wires see the same voltage, the cable
to the treble posts are only carrying the current produced by the treble
part of the signal.


How do you work this out, given that it's paralleled at the amp end?


Well as Stew has pointed out, it isn't going to make any difference, but
I still think assuming a high pass filter in the xover, then the
resistance of the xover will be high at low frequences, so the current
at low frequencies will be correspondingly low.

--
Nick

Biwiring
 

Dave Plowman wrote:

In article ,
Nick Gorham wrote:

I can't convince myself that this may (or may not) make a difference,
but one point is that while both wires see the same voltage, the cable
to the treble posts are only carrying the current produced by the treble
part of the signal.


How do you work this out, given that it's paralleled at the amp end?


Well as Stew has pointed out, it isn't going to make any difference, but
I still think assuming a high pass filter in the xover, then the
resistance of the xover will be high at low frequences, so the current
at low frequencies will be correspondingly low.

--
Nick

Biwiring
 

Nick Gorham wrote:

Well as Stew has pointed out, it isn't going to make any difference,
but I still think assuming a high pass filter in the xover, then the
resistance of the xover will be high at low frequences, so the current
at low frequencies will be correspondingly low.

Will the presence or otherwise of bass frequencies affect how the cable
transfers the high frequencies?


--
Wally
www.art-gallery.myby.co.uk
Latest work: The Langlois Bridge (after Van Gogh)

Biwiring
 

Nick Gorham wrote:

Well as Stew has pointed out, it isn't going to make any difference,
but I still think assuming a high pass filter in the xover, then the
resistance of the xover will be high at low frequences, so the current
at low frequencies will be correspondingly low.

Will the presence or otherwise of bass frequencies affect how the cable
transfers the high frequencies?


--
Wally
www.art-gallery.myby.co.uk
Latest work: The Langlois Bridge (after Van Gogh)

Biwiring
 

Wally wrote:

Nick Gorham wrote:


Well as Stew has pointed out, it isn't going to make any difference,
but I still think assuming a high pass filter in the xover, then the
resistance of the xover will be high at low frequences, so the current
at low frequencies will be correspondingly low.


Will the presence or otherwise of bass frequencies affect how the cable
transfers the high frequencies?

Don't know, I wasn't trying to make a point, just thinking out loud.


--
Nick

Biwiring
 

Wally wrote:

Nick Gorham wrote:


Well as Stew has pointed out, it isn't going to make any difference,
but I still think assuming a high pass filter in the xover, then the
resistance of the xover will be high at low frequences, so the current
at low frequencies will be correspondingly low.


Will the presence or otherwise of bass frequencies affect how the cable
transfers the high frequencies?

Don't know, I wasn't trying to make a point, just thinking out loud.


--
Nick

Biwiring
 

On Sun, 14 Dec 2003 13:08:48 +0000 (UTC)
(Stewart Pinkerton) wrote:

Interesting, since it's only around the crossover that biwiring has
even the slightest theoretical advantage.

well if you attenuate the crossover its similar to boosting both high / low...


--
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.