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uk.rec.audio (General Audio and Hi-Fi) (uk.rec.audio) Discussion and exchange of hi-fi audio equipment.

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  #51 (permalink)  
Old July 24th 03, 05:22 PM posted to uk.rec.audio
Dave Plowman
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Posts: 735
Default Speaker Cable

In article ,
Kurt Hamster wrote:
Suppose I should be used to now by your convoluted 'reasoning'.


What reasoning?


Absolutely.

--
*You are validating my inherent mistrust of strangers

Dave Plowman London SW 12
RIP Acorn
  #52 (permalink)  
Old July 24th 03, 06:36 PM posted to uk.rec.audio
John Phillips
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Posts: 6
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In article , Jim H wrote:
John Phillips in uk.rec.audio:

This is a genuine question even though it may be taken otherwise: is
audible frequency response deviation from flat either an acceptable or
a desireable factor in a cable?


I'd say not. If you need to make small changes to the EQ a hardwired cable
seems pretty crude, especially given the lack of information on the curve
they provide. Using the tone controls or getting a dedicated EQ would be a
beter choice.


Well there is an ulterior motive to my question which is to get some
clear idea of what known effects can be eliminated as the cause of any
cable sound differences.

I too think frequency response is one to eliminate. But how about
intermodulation, to take another possibility?

For example, the "thousands of millivolt diodes in series" argument is
used about (a) poly-crystalline copper (as opposed to mono-crystalline
OCC copper); and (b) multi-strand cables; both of which lead to current
jumping from one crystal/conductor to the next through suggested copper
oxide rectification at adjoining surfaces.

If this is so I would expect "bad" cables to measurably generate
intermodulation products. A bit of research on Google, however, draws
a blank. Are there any references?

--
John Phillips
  #53 (permalink)  
Old July 25th 03, 01:45 AM posted to uk.rec.audio
Stevie Boy
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Posts: 69
Default Speaker Cable


I am in the Heart of England, so unlikely to be more than 100 miles
from you.
--


In the last 'discussions' of a millenium ago my memory served me as having
you further north but it would appear I'm mistaken.
I am in essex.

Steve


  #54 (permalink)  
Old July 25th 03, 01:49 AM posted to uk.rec.audio
Stevie Boy
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Posts: 69
Default Speaker Cable


Do you mean you're?


Not according to an english dictionary! no.


  #55 (permalink)  
Old July 25th 03, 02:40 AM posted to uk.rec.audio
Jim H
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Posts: 247
Default Speaker Cable

Stevie Boy in uk.rec.audio:


Do you mean you're?


Not according to an english dictionary! no.



Yeah, about that dictionary...

--
Jim H
3.1415...4999999 and so on... Richard Feynman
  #56 (permalink)  
Old July 25th 03, 07:49 AM posted to uk.rec.audio
Stewart Pinkerton
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Posts: 3,367
Default Speaker Cable

On Fri, 25 Jul 2003 01:45:10 +0100, "Stevie Boy"
wrote:

I am in the Heart of England, so unlikely to be more than 100 miles
from you.
--


In the last 'discussions' of a millenium ago my memory served me as having
you further north but it would appear I'm mistaken.
I am in essex.


I'm between Leicester and Nottingham, although originally from
Scotland.
--

Stewart Pinkerton | Music is Art - Audio is Engineering
  #57 (permalink)  
Old July 25th 03, 09:58 AM posted to uk.rec.audio
Jim Lesurf
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Posts: 3,051
Default Speaker Cable

In article , John Phillips
wrote:


I too think frequency response is one to eliminate. But how about
intermodulation, to take another possibility?


For example, the "thousands of millivolt diodes in series" argument is
used about (a) poly-crystalline copper (as opposed to mono-crystalline
OCC copper); and (b) multi-strand cables; both of which lead to current
jumping from one crystal/conductor to the next through suggested copper
oxide rectification at adjoining surfaces.


If this is so I would expect "bad" cables to measurably generate
intermodulation products. A bit of research on Google, however, draws a
blank. Are there any references?


None that I have been able to find so far. The above claim is one I've seen
a number of times in adverts, articles, and cable-maker websites. Yet - as
with some other 'technical' claims - when I question the makers I don't
seem to get reliable references or plausible physics.

If someone knows of some good references to measurements of the above
(alleged) effect I'd be interested to know. Ditto for various other claims
cable makers assert.

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
 




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