Biwiring with Nordost
 

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote in message
...
On Tue, 9 Jan 2007 07:45:43 +1100, "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.

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

--
Trevor Wilson
www.rageaudio.com.au



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

Biwiring with Nordost
 

On Tue, 9 Jan 2007 08:23:59 +1100, "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.

Biwiring with Nordost
 

On 2007-01-08, Trevor Wilson wrote:

"Eiron" wrote in message
...
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.

There are not many figures for DC resistance on the Nordost website,
and some of the other figures look dubious. Do you have some real numbers?

**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). ...

However I think that isn't how the OP's cable is actually configured
by the manufacturer. But by having alternate hot/ground connections
you will indeed get significantly reduced inductance at the expense of
increased capacitance.

--
John Phillips

Biwiring with Nordost
 

On 2007-01-08, Laurence Payne lpayne1NOSPAM@dslDOTpipexDOTcom wrote:
On Tue, 9 Jan 2007 08:23:59 +1100, "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.

Precisely. There is no established correlation between cost and
performance - good cable design is not an expensive issue - just a matter
of conventional intelligence.

--
John Phillips

Biwiring with Nordost
 

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote in message
...
On Tue, 9 Jan 2007 08:23:59 +1100, "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.

Of course, if you are not interested in learning anything, then don't
bother.


--
Trevor Wilson
www.rageaudio.com.au



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

Biwiring with Nordost
 

"John Phillips" wrote in message
...
On 2007-01-08, Trevor Wilson wrote:

"Eiron" wrote in message
...
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.

There are not many figures for DC resistance on the Nordost website,
and some of the other figures look dubious. Do you have some real
numbers?

**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). ...

However I think that isn't how the OP's cable is actually configured
by the manufacturer. But by having alternate hot/ground connections
you will indeed get significantly reduced inductance at the expense of
increased capacitance.

**Indeed. Increased capacitance is of little consequence.


--
Trevor Wilson
www.rageaudio.com.au



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

Biwiring with Nordost
 

In article ,
John Phillips wrote:
I may possibly have been able to do that particular calculation mumble
years ago but I regret that parallel multiply coupled transmission lines
is too complex for me now without a lot of re-learning :-(.

Transmission line theory depends on a match at either end.

--
*Of course I'm against sin; I'm against anything that I'm too old to enjoy.

Dave Plowman London SW
To e-mail, change noise into sound.

Biwiring with Nordost
 

Eiron wrote:

John Phillips wrote:

I haven't estimated the inductance of an individual pair but the parallel
connection of so many probably explains why the quoted inductance finally
drops back to about 2/3 that of ordinary 12-gauge zip cable.

Does it work like that when all the live wires are on one side and all
the ground wires are on the other side of a flat cable?
Time to brush up on my electomagnetic theory.

I can't see how.

What you're interested in is the 'cut area' when looking at inductance.

Graham

Biwiring with Nordost
 

Laurence Payne wrote:

On Tue, 9 Jan 2007 06:33:46 +1100, "Trevor Wilson"
wrote:

**Indeed. The way I normally connect Nordost, is to connect each alternate
conductor to ground and hot. This reduces inductance significantly. Of
course, there are other ways to achieve an excellent result. RG-213/U works
for me. Cheap and VERY low inductance.

Have a look at their site. Quite amusing. Here's a couple of
excerpts from their FAQ section.
http://www.nordost.com/faq/faq.cfm

Question:
Are the cables directional?

Answer:
Nordost cables are not directional when they are manufactured. However
once they have been used for 70 to 80 hours in one direction they will
sound better when they are hooked up and used in the original
direction of break in

Bwahahahahahaah !

Oh Joy.


Then, on the next page:

Question:
What direction should the arrows on the cable point?

Answer:
Unless otherwise noted on the packaging, speaker cables should be
connected with the directional arrows pointing to the loudspeakers.
Interconnect(signal) cables should be connected with the arrows
pointing in the direction of the signal flow. For example, from a
Tuner, VCR,CD or DVD player the arrows should go to the preamplifier
or amplifier. From the pre-amp the arrows should go into the
amplifier.

And plenty more.

Bizarre.

Graham

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?

**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 ) ?

Graham