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Re: [ARSCLIST] Cables- was Can 78s sound better than LPs?
From: Patent Tactics, George Brock-Nannestad
----- it is all about the reproduction of transients, without smearing. I
have precisely the opposite need in my office wiring system - single phase.
My fuse is an electromagnetic trip fuse. Whenever I switch on my analog
office copier the fuse blows. This means that I have to switch off all
printers, several computers (except the one on a UPS) in order to be able to
switch the fuse back on and then try to hit a zero crossing in the voltage to
the copier (mind you, this is easier than in the US, because we have only 50
Hz). Then, after a few attempts I can switch life in the office back on, item
by item. This quickly became intolerable, and I took a 100' extension cord, a
hefty grade, to supply the copier. Obviously I did not want a tremendous
voltage drop during normal operation, so I had to use heavy gauge. While the
resistance is low, the impedance of the coiled up extension cord is
sufficient to smear the inrush current transient, and everybody is happy.
Kind regards,
George
>
> -----Original Message-----
> From: Association for Recorded Sound Discussion List
> [mailto:ARSCLIST@xxxxxxx] On Behalf Of Mike Richter
> Sent: Monday, August 28, 2006 10:05 AM
> To: ARSCLIST@xxxxxxxxxxxxxxxx
> Subject: Re: [ARSCLIST] Cables- was Can 78s sound better than LPs?
>
> Steven Smolian wrote:
> > Seems to me the theory of matched impedence comes into play here
> > somewhere. What is the size of the wire attached to the connector on
> > the inside of the box?
> >
> > Unknown. Many of us the "it couldn't hurt" theory. So do I. I use
> > heavy lamp wire for speaker connections.
> >
> > I expect cable length has more to do with it than thickness. All
> > other things being equal, I've found powered speakers sound better-
> > more open- than the same speakers with external amplification.
> >
> > This is heresy. None of the classic speakers were made that way and
> > we all venerate age- of equipment.
> >
> > Steve Smolian
>
> I have been using 10 gauge zip cord for decades, since I first heard a
> shop selling junk speakers by hooking up AR3s with "speaker wire" for
> comparison.
>
> It's easy enough to calculate the impedance of any length of
> standard-gauge wire. That yields the damping factor for speaker
> resonances since it is almost always far more than the output impedance
> of a modern amplifier. Said damping factor then goes into classic
> expressions for the Q of the tuned circuit which is the electrical
> aspect of a speaker.
>
> In short, run a few feet of high-impedance wire to turn your
> high-quality speakers into a boom box.
>
> Mike
> --
> mrichter@xxxxxxx
> http://www.mrichter.com/