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May 2007

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Subject:
From:
Guy Ramsey <[log in to unmask]>
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Date:
Fri, 18 May 2007 18:08:00 -0400
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I have considered this approach, but the wack jobs that think they can hear
improvement in a deeply frozen and properly thawed AC cord are often
anti-digital. 

The fact is there are sensitive people that can tell the difference between
music reproduced with a MOSFET, Triode, Pentode or Bipolar amp. They are few
and far between. Which explains the success of the those companies
exploiting the wack jobs above, on the one hand and companies like Bose, on
the other. 

"Perhaps more than any other discipline, audio engineering
involves not only purely objective characterization
but also subjective interpretations. It is
the listening experience, that personal and most private
sensation, which is the intended result of our labors
in audio engineering. No technical measurement, however
glorified with mathematics, can escape that fact."

Richard Heyser
http://www.aes.org/aeshc/docs/jaes.obit/JAES_V35_5_PG413.pdf


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hogg, Blair K.
Sent: Friday, May 18, 2007 1:50 PM
To: [log in to unmask]
Subject: Re: [TN] Friday TechnoTopic

I wonder why someone doesn't just put the amplifier at the speaker itself,
then run line level audio through shielded cables to each amplifier.
Probably too much chance of em noise affecting the signal.
Could always go digital to the speaker, then turn it into audio signals
driving the voice coil. I think that is how it is done on some automotive
systems.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge
Sent: Thursday, May 17, 2007 9:27 PM
To: [log in to unmask]
Subject: Re: [TN] Friday TechnoTopic

The world is full of nonsense. A friend of mine bought water cooled speaker
cables with pure gold connectors. That cable, I assure, could supply current
to a whole block in Santa Domingo. Myself, have an ordinary "room cord" like
the one you use for your desk lamp, this one
15 feet long wire feeds a 800 W bass speaker. The loss in the wire is so
low, that it's neglectable, and the distortion would noone hear when the
bookshelves vibrate and you feel the thunder through the chair's legs. I
prefer to listen to the music, not to look at the music via a oscilloscope
and a spectrum analyzer.
Inge

----- Original Message -----
From: "Graham Collins" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 18, 2007 7:21 AM
Subject: Re: [TN] Friday TechnoTopic


> Ha!  I'm guessing that wasn't a blind test.  How would that short
piece
> of wire impact audio performance?  It's connecting a household plug 
> socket, through the house wiring (of dubious quality if it's Inge's
> house...) and the power grid...  and has a transformer on the other 
> side, presumably.
>
> I'm guessing this is along the lines of the speaker wire a sales guy 
> tried to sell me one time.  It was 12 gage wire (overkill, but OK),
but
> he was very earnest in telling me that the wire was formed such that
it
> was optimized for electron flow in one particular direction...
>
> I'm thinking it's only applied to the AC power cord because anything 
> more complicated would not emerge functional.  Component failures
aside,
> what would that do to solder joints???
>
> regards,
>
> Graham Collins
> Process Engineer,
> L-3 Communications Electronic Systems Inc.
> Halifax
> (902) 873-2000 ext 6215
>
>>>> [log in to unmask] 05/17/07 10:37PM >>>
> There is a process in High End Audio which purports to enhance 
> equipment performance ,  called CryoTreatment.
>
> In this process the audio gear is subjected to a ramp down to -281F
(or
> cooler, but not below -320F), followed by a soak of 20 to 40 hours, 
> followed by a specific warm-up cycle back to R/T.
>
> It is postulated  that the technical  explanation for the enormous 
> listening benefits  of the process is a re-arrangement or refinement
of
> the crystal structure of the conductor metals. The effect is so
powerful
> that objective listeners reported  a significant improvement in audio 
> quality when the AC power cord for a preamp was so treated.  I doubt
my
> aging ears are responsive to subtleties of this nature.
>
> Anybody care to estimate how an electronic assembly, surface-mount or 
> otherwise, including  semiconductor devices, would fare thru  this 
> process?
>
> Tom Stearns
> 3 Brander Court
> Nashua, NH
> 03063
>
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