Biwiring with Nordost
 

Trevor Wilson wrote:

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
"Trevor Wilson" wrote:

**I'm sure there is. I never bother reading the hyperbole from a
manufacturer's site. I am ONLY interested in the technology and the
numbers.
The science and the numbers tells me all I need to know about how a cable
will sound. And trust me: The technology and the numbers from Nordost
products is pretty good.

I particularly liked the emphasis on "90% of the speed of light" etc.

What technology would you say is important in a speaker cable?

**Oops. I didn't read your question carefully. Here is my corrected answer:

I don't consider that any one technology is important in a speaker cable, as
long as the right numbers are achieved. Those numbers a

* Low resistance.
* Low inductance.
* Conductors which cannot move under the effects of EMF.

Under the effects of EMF ????


PTFE insulation allows for two of the above things. Lots of copper (or
silver) allows for the other.

How does PTFE help ?

Graham

Biwiring with Nordost
 

Laurence Payne wrote:

"Trevor Wilson" wrote:

**I measured some Nordost some time ago, but I have no idea where those
figures are today. Inductance, when properly configured, was about 20% that
of regular 'figure 8' (zip cable). The figures can be inferred, merely by
examining the construction of any given cable in any case. T'ain't rocket
science.

This is exactly what I came up against in my sadly hilarious encounter
with an audio magazine.
http://www.laurencepayne.co.uk/cables.html

They were only prepared to show me expensive cables and bell wire. I
wanted to compare their magic cables with a sturdy power cable.

You're not allowed to do that obviously.

The magic might wear out.

Graham

Biwiring with Nordost
 

Trevor Wilson wrote:

* Use an amplifier which can deal with 2 Ohm (or better) load impedances,
without Voltage drop or current limiting (no MOSFETs or valves, of course).

MY mosfet amps will drive 2 ohms no trouble !

Graham

Biwiring with Nordost
 

On Tue, 09 Jan 2007 01:56:07 +0000, Eeyore
wrote:

PTFE insulation allows for two of the above things. Lots of copper (or
silver) allows for the other.

How does PTFE help ?

Apparently it removes any need for screening as well. Though I think
they mean on speaker cables.

Screened speaker cables? Whatever.

Biwiring with Nordost
 

Trevor Wilson wrote:

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
"Trevor Wilson" wrote:

**I measured some Nordost some time ago, but I have no idea where those
figures are today. Inductance, when properly configured, was about 20%
that
of regular 'figure 8' (zip cable). The figures can be inferred, merely by
examining the construction of any given cable in any case. T'ain't rocket
science.

This is exactly what I came up against in my sadly hilarious encounter
with an audio magazine.
http://www.laurencepayne.co.uk/cables.html

They were only prepared to show me expensive cables and bell wire. I
wanted to compare their magic cables with a sturdy power cable.

**If you REALLY want to know if there is a difference, then here's what I
suggest you do:

* Beg, borrow or steal a pair of Quad ESL63 speakers (Should be easy enough
in the UK).
* Go find some RG213/U (or similar low loss, high power coax cable).
* Go find some heavy duty 'figure 8' cable (your choice).
* Use an amplifier which can deal with 2 Ohm (or better) load impedances,
without Voltage drop or current limiting (no MOSFETs or valves, of course).

Do some comparative listening with cable runs of around 10 Metres. You'll
hear a difference very easily.

To return to my earlier question.....

How much inductance do you think is audible ?

I know it's not possible to give a blanket answer but how about in terms of X
dB @ X kHz ?

Graham

Biwiring with Nordost
 

"Eeyore" wrote in message
...


Trevor Wilson wrote:

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
"Trevor Wilson" wrote:

**I measured some Nordost some time ago, but I have no idea where those
figures are today. Inductance, when properly configured, was about 20%
that
of regular 'figure 8' (zip cable). The figures can be inferred, merely
by
examining the construction of any given cable in any case. T'ain't
rocket
science.

This is exactly what I came up against in my sadly hilarious encounter
with an audio magazine.
http://www.laurencepayne.co.uk/cables.html

They were only prepared to show me expensive cables and bell wire. I
wanted to compare their magic cables with a sturdy power cable.

**If you REALLY want to know if there is a difference, then here's what I
suggest you do:

* Beg, borrow or steal a pair of Quad ESL63 speakers (Should be easy
enough
in the UK).
* Go find some RG213/U (or similar low loss, high power coax cable).
* Go find some heavy duty 'figure 8' cable (your choice).
* Use an amplifier which can deal with 2 Ohm (or better) load impedances,
without Voltage drop or current limiting (no MOSFETs or valves, of
course).

Do some comparative listening with cable runs of around 10 Metres. You'll
hear a difference very easily.

To return to my earlier question.....

How much inductance do you think is audible ?

**Without nominating the length of the cables and the impedance of the
speakers, it is not possible to say.


I know it's not possible to give a blanket answer but how about in terms
of X
dB @ X kHz ?

**Depends on the listener.


--
Trevor Wilson
www.rageaudio.com.au



--
Posted via a free Usenet account from http://www.teranews.com

Biwiring with Nordost
 

"Eeyore" wrote in message
...


Trevor Wilson wrote:

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
"Trevor Wilson" wrote:

**I'm sure there is. I never bother reading the hyperbole from a
manufacturer's site. I am ONLY interested in the technology and the
numbers.
The science and the numbers tells me all I need to know about how a
cable
will sound. And trust me: The technology and the numbers from Nordost
products is pretty good.

I particularly liked the emphasis on "90% of the speed of light" etc.

What technology would you say is important in a speaker cable?

**The use of PTFE, the ribbon conductors and the fact that the conductors
can be arranged to provide low inductance.

Why PTFE of all things and why ribbons ( are you thinking skin effect
here ) ?

**PTFE has many advantages as a dielectric material. Chief amongst them (in
this instance) is the ability to allow very thin insulation to be used, thus
allowing the construction of low inductance cables. Secondarily, PTFE keeps
cables rigid.


--
Trevor Wilson
www.rageaudio.com.au



--
Posted via a free Usenet account from http://www.teranews.com

Biwiring with Nordost
 

"Eeyore" wrote in message
...


Trevor Wilson wrote:

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
"Trevor Wilson" wrote:

**I'm sure there is. I never bother reading the hyperbole from a
manufacturer's site. I am ONLY interested in the technology and the
numbers.
The science and the numbers tells me all I need to know about how a
cable
will sound. And trust me: The technology and the numbers from Nordost
products is pretty good.

I particularly liked the emphasis on "90% of the speed of light" etc.

What technology would you say is important in a speaker cable?

**Oops. I didn't read your question carefully. Here is my corrected
answer:

I don't consider that any one technology is important in a speaker cable,
as
long as the right numbers are achieved. Those numbers a

* Low resistance.
* Low inductance.
* Conductors which cannot move under the effects of EMF.

Under the effects of EMF ????

**Indeed. Basic electrical theory. Two parallel conductors will move when an
opposing current is passed through them.



PTFE insulation allows for two of the above things. Lots of copper (or
silver) allows for the other.

How does PTFE help ?

**Thin insulation (allows for lower inductance cables) and stiffer
properties then PVC.


--
Trevor Wilson
www.rageaudio.com.au



--
Posted via a free Usenet account from http://www.teranews.com

Biwiring with Nordost
 

"Eeyore" wrote in message
...


Trevor Wilson wrote:

* Use an amplifier which can deal with 2 Ohm (or better) load impedances,
without Voltage drop or current limiting (no MOSFETs or valves, of
course).

MY mosfet amps will drive 2 ohms no trouble !

**That's what you think.


--
Trevor Wilson
www.rageaudio.com.au



--
Posted via a free Usenet account from http://www.teranews.com

Biwiring with Nordost
 

Laurence Payne wrote:

Eeyore wrote:

PTFE insulation allows for two of the above things. Lots of copper (or
silver) allows for the other.

How does PTFE help ?

Apparently it removes any need for screening as well. Though I think
they mean on speaker cables.

Screened speaker cables? Whatever.

Eh ? PTFE's a plastic.

Graham