Biwiring with Nordost
 

borosteve wrote:

wrote:
On a recent trip to the US I bought a set of Nordost Blue Heaven RevII
speaker cables at a very good price. The only problem I have with them
is that they are not set up for biwiring. Does anyone have any
experience of changin connectors on Nordost flat cables. At face value
it should be straight forward but I don't want to start hacking the
cable about until I am sure what the procedure is. It could be a very
expensive mistake!!

You can have them re-terminated through a Nordost dealer who can send
them to the distributor called " Active distribution". I would not try
doing it yoursef as from experience it is a very difficult cable to
work with.

Another dickhead speaks.

Graham

Biwiring with Nordost
 

"Eeyore" wrote in message
...


Trevor Wilson wrote:

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
On 5 Jan 2007 09:01:35 -0800, wrote:

On a recent trip to the US I bought a set of Nordost Blue Heaven RevII
speaker cables at a very good price. The only problem I have with them
is that they are not set up for biwiring. Does anyone have any
experience of changin connectors on Nordost flat cables. At face value
it should be straight forward but I don't want to start hacking the
cable about until I am sure what the procedure is. It could be a very
expensive mistake!!

Sell them to an audiophool and use any reasonably sturdy cable for
your speakers. It will sound exactly the same, and you'll have money
in your pocket.

**Actually, you don't know that. Nordost Blue Heaven cables are very low
inductance types and may be much more suitable for certain installations.

And exactly how much inductance is needed to be audible Trevor ?

**Depends on the impedance curve of the speaker and the length of the
cables, of course. But you knew that already. Further and for the record: I
have been involved in at least a dozen installations where cable runs were
such that low inductance cabling made substantial audible improvements. The
idiots who installed the systems (where I was not the primary installer)
just used the most expensive cable, without bothering to select the lowest
inductance cable. Dollars do not necessarily equate to better real world
performance.


--
Trevor Wilson
www.rageaudio.com.au



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

Biwiring with Nordost
 

Trevor Wilson wrote:

"Eeyore" wrote in message
Trevor Wilson wrote:
"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
wrote:

On a recent trip to the US I bought a set of Nordost Blue Heaven RevII
speaker cables at a very good price. The only problem I have with them
is that they are not set up for biwiring. Does anyone have any
experience of changin connectors on Nordost flat cables. At face value
it should be straight forward but I don't want to start hacking the
cable about until I am sure what the procedure is. It could be a very
expensive mistake!!

Sell them to an audiophool and use any reasonably sturdy cable for
your speakers. It will sound exactly the same, and you'll have money
in your pocket.

**Actually, you don't know that. Nordost Blue Heaven cables are very low
inductance types and may be much more suitable for certain installations.

And exactly how much inductance is needed to be audible Trevor ?

**Depends on the impedance curve of the speaker and the length of the
cables, of course.

But of course ! All of these factors come into play.


But you knew that already. Further and for the record: I
have been involved in at least a dozen installations where cable runs were
such that low inductance cabling made substantial audible improvements.

Low inductance cabling might perhaps result in a 'better' HF response - i.e.
more level at HF ( 'crisper' sound ) .


The idiots who installed the systems (where I was not the primary installer)
just used the most expensive cable, without bothering to select the lowest
inductance cable. Dollars do not necessarily equate to better real world
performance.

That much I'm sure isn't in doubt.

So, how much cable inductance do you reckon is enough to drop the HF audibly ?

Graham

Biwiring with Nordost
 

On Sat, 06 Jan 2007 21:10:14 +0000 (GMT), Jim Lesurf
wrote:

In article , Trevor Wilson
wrote:

"Don Pearce" wrote in message
...


You persist in calling these
low-inductance, but the dominant factor is clearly the high
capacitance.

**No. The dominant factor is the low inductance. The capacitance is
irrelevant (unless one is using a Naim amp).

You seem to be using "dominant factor" for two quite different contexts.

So far as the *amplifier stability* is concerned, it will be the cable
capacitance that matters. But for the overall frequency response, it will
be the interaction between the series impedance (inductance in this
context) and the speaker impedance that matters.

Thus so far as I can see, you are both correct. :-)

Slainte,

Jim

I was only talking about the amplifier stability question, but you are
still right. A cable can have a great deal of capacitance, but as long
as it has enough inductance to go along with it, the result will not
be seen as capacitive by an amplifier.

d

--
Pearce Consulting
http://www.pearce.uk.com

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

Biwiring with Nordost
 

Trevor Wilson wrote:

"Eeyore" wrote in message
Trevor Wilson wrote:
"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote
On 5 Jan 2007 09:01:35 -0800, wrote:

On a recent trip to the US I bought a set of Nordost Blue Heaven RevII
speaker cables at a very good price. The only problem I have with them
is that they are not set up for biwiring. Does anyone have any
experience of changin connectors on Nordost flat cables. At face value
it should be straight forward but I don't want to start hacking the
cable about until I am sure what the procedure is. It could be a very
expensive mistake!!

Sell them to an audiophool and use any reasonably sturdy cable for
your speakers. It will sound exactly the same, and you'll have money
in your pocket.

**Actually, you don't know that. Nordost Blue Heaven cables are very low
inductance types and may be much more suitable for certain installations.

And exactly how much inductance is needed to be audible Trevor ?

**Depends on the impedance curve of the speaker and the length of the
cables, of course.

How about a figure Trevor ? As in "is 300uH too much" ????


But you knew that already. Further and for the record: I
have been involved in at least a dozen installations where cable runs were
such that low inductance cabling made substantial audible improvements. The
idiots who installed the systems (where I was not the primary installer)
just used the most expensive cable, without bothering to select the lowest
inductance cable. Dollars do not necessarily equate to better real world
performance.

Can you translate that into English ?


Graham

Biwiring with Nordost
 

wrote:


Thanks for the helpful response (unlike most of the other posts!!). I
decided not to biwire the speakers and connected the cables up as the
were. Contrary to what many of the posters on this website seem to
think about cables, they sound great.

Of course they sound great. They sound the same as any other cable of
similar resistance. I wonder why the manufacturer doesn't state the
resistance on the website. In fact I'm not sure I believe the stated
inductance for such a widely spaced cable. Perhaps they fold it in two
while measuring the inductance. Here it is:

http://www.nordost.com/Cables/speake...lue-heaven.htm

--
Eiron.

Biwiring with Nordost
 

In article . com,
wrote:

Contrary to what many of the posters on this website seem to think about
cables, they sound great.

Erm..

1) This is not a "website", it is a newsgroup. :-)

2) I suspect the 'Nordost' cables you use actually make no sound at all.
Try disconnecting the loudspeakers from them, play some music, and listen
to determing if you can hear any sound of the music from the cables. :-)
However, if they *do* make a sound, this may indicate a problem with them.

It may well be that your system produces "great" sounds when you play
suitable source material - and it might also sound the same using other
suitable cables at a fraction of the price. The EM fields which the cables
convey from the amp to the speakers and which carry the signals don't know
how much the cables cost. ;- They just obey the standard behaviour for
EM fields, etc, in our universe.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html

Biwiring with Nordost
 

In article . com,
wrote:
Contrary to what many of the posters on this website seem to
think about cables, they sound great.

And you've done proper tests against mains cable at under a quid a metre?

--
*Seen it all, done it all, can't remember most of it*

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

Biwiring with Nordost
 

On 7 Jan 2007 06:46:17 -0800, wrote:

Thanks for the helpful response (unlike most of the other posts!!). I
decided not to biwire the speakers and connected the cables up as the
were. Contrary to what many of the posters on this website seem to
think about cables, they sound great.

But so will any suitably-rated cable. If you DO find a cable that
makes a difference, it will be a distortion. I realise you will find
it hard to reconcile this fact with the money you've wasted.

Biwiring with Nordost
 

On 2007-01-07, Eeyore wrote:
Trevor Wilson wrote:
"Eeyore" wrote in message
Trevor Wilson wrote:
**Actually, you don't know that. Nordost Blue Heaven cables are very low
inductance types and may be much more suitable for certain installations.

And exactly how much inductance is needed to be audible Trevor ?

**Depends on the impedance curve of the speaker and the length of the
cables, of course.

How about a figure Trevor ? As in "is 300uH too much" ????

Trevor has already explained that, in general, this question cannot
be answered without more information on the complete amp/cable/speaker
system. At least you need the impedance curve of the loudspeaker (and
the threshold curves for human ability to distinguish level differences
across the frequency domain).

However, 300 uH is WAY too much for a typical loudspeaker cable [1].
Why don't you calculate its impedance (2*pi*f*L) at 300 Hz and also
at 3,000 Hz. Then compare the potential divider effects at these two
frequencies with the cable driving, say, a constant 4 ohm load (not that
this is a realistic loudspeaker impedance curve)?

Human thresholds for the audibility of frequency response difference
can be found at http://www.ethanwiner.com/phase.html

[1] E.g. 12-gauge zip cord has an inductance of about 0.75 uH per metre
and the Nordost cable in question claims 0.46 uH per metre.

--
John Phillips