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

Speaker Wire advise pls



 
 
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Old September 17th 06, 11:45 PM posted to uk.rec.audio
Wally
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Posts: 513
Default Speaker Wire advise pls

Andy Hewitt wrote:

Instead of spouting what you've read from dodgy sources show some
real science to back up your claim.


http://www.whathifi.com/newsMainTemp...ewssectionID=3
http://www.home-cinema-guide.co.uk/biwire4.htm


Seems to me that both of these articles say basically the same thing. From
the second...

--------------------------
The full-frequency signal arrives at both crossovers through the red/+
conductor and each is filtered so that the driver receives only the signal
it needs. The signals are then passed back to the amp along the
corresponding black/- conductors, but because the high and low frequencies
have already been separated, each has no affect on the other - the delicate
treble is not overpowered by the bass.
--------------------------

If it's the case that, in a wire, the treble can be overpowered by the bass,
then it must be the case that, in a bi-wired setup described as above, this
overpowering of the treble is ocurring in the 'hot' side of the cable
anyway. And all the way through the signal chain from source to amp output
terminals. It's only split down one side of a length of speaker wire, which
has a resistance in the order of milliohms, which is part of a circuit which
has a nominal load of 8 ohms. I'd have to say that I'm skeptical that such a
topographical change would make a noticable differnce to the sound.

The question is, however, can the treble be overpowered by the bass in a
wire? Of this, I'm very, very doubtful. This idea stems from the thinking
behind bi-amping with a crossover before the amps, where the idea is to
supply each amp only with its alloted band of frequencies. In so doing, the
treble is no longer modulated by the bass (treble peak on top of bass peak
equals very big peak, equals clipping), meaning that there's more effective
headroom and thus less likelihood of clipping.

Unlike amplifiers, I don't believe cables clip the signal or have headroom
issues. It would seem, however, that both of the aforelinked articles rest
on the presupposition that they do. Which isn't terribly scientific.


--
Wally
www.wally.myby.co.uk
You're unique - just like everybody else.


  #2 (permalink)  
Old September 18th 06, 12:32 AM posted to uk.rec.audio
Eeyore
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Posts: 303
Default Speaker Wire advise pls



Wally wrote:

The question is, however, can the treble be overpowered by the bass in a
wire?


Well....... It got all the way from the microphone, throught the mixing desk and
the reording / reproduction chain in one piece ok but the audiophools who
believe in in bi-wiring are concerned exclusively about the last few metres !

It's utter idiocy.

Graham

  #3 (permalink)  
Old September 18th 06, 09:50 AM posted to uk.rec.audio
Jim Lesurf
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Posts: 3,051
Default Speaker Wire advise pls

In article , Wally
wrote:
Andy Hewitt wrote:


Instead of spouting what you've read from dodgy sources show some
real science to back up your claim.


http://www.whathifi.com/newsMainTemp...ewssectionID=3
http://www.home-cinema-guide.co.uk/biwire4.htm


Seems to me that both of these articles say basically the same thing.
From the second...


-------------------------- The full-frequency signal arrives at both
crossovers through the red/+ conductor and each is filtered so that the
driver receives only the signal it needs. The signals are then passed
back to the amp along the corresponding black/- conductors, but because
the high and low frequencies have already been separated, each has no
affect on the other - the delicate treble is not overpowered by the
bass. --------------------------


No sign of anyone there who has even heard of 'linear superposition',
then... Why am I not astonished, I wonder?

The question is, however, can the treble be overpowered by the bass in a
wire? Of this, I'm very, very doubtful.


You would be correct to have serious doubts. It is technobabble.

Unlike amplifiers, I don't believe cables clip the signal or have
headroom issues. It would seem, however, that both of the aforelinked
articles rest on the presupposition that they do. Which isn't terribly
scientific.


The problem isn't that it isn't 'scientific'. The problem is that it is
nonsense.

Slainte,

Jim

--
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Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
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Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html
 




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