TECHNET Archives

May 2007

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Hogg, Blair K." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Hogg, Blair K.
Date:
Fri, 18 May 2007 13:50:04 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (160 lines)
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
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text
> in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at:
> http://listserv.ipc.org/archives
> Please visit IPC web site
> http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
> information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100
> ext.2815
> -----------------------------------------------------
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text
in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to 
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to 
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at:
http://listserv.ipc.org/archives
> Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 
> for additional information, or contact Keach Sasamori at
[log in to unmask] or 
> 847-615-7100 ext.2815
> ----------------------------------------------------- 

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at:
http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------

*******************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.

This footnote also confirms that this email message has been swept
for the presence of computer viruses.

www.Hubbell.com - Hubbell Incorporated

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

ATOM RSS1 RSS2