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Home > Archive > Electrical Engineering > April 2007 > Are moving-coil speakers & crossover networks inductive loads ?
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Are moving-coil speakers & crossover networks inductive loads ?
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| TE Chea 2007-04-17, 9:25 am |
| I don't have a inductance meter, I suspect these 2 things are
inductive, because a pair of capacitive ( 60 +ve & 60 -ve
wires are interwoven ) speaker cable ( made by UK's
Monitor Audio in 1983 ) can produce less distortion from
the same m-c spkrs & amplifier than straight ( not inter
woven ) spkr cables can, such that FM broadcasts sounds
more like CD`s.
I presume this is because this cable's capacitance reduce m-c
spkr & crossover networks' inductance, so power factor (
between amplifier & spkrs ) is nearer to 1.
Does any1 here know better ?
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| Bill Shymanski 2007-04-19, 8:25 pm |
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"TE Chea" <4ws@gmail.com> wrote in message
news:462497d7_2@news.tm.net.my...
> I don't have a inductance meter, I suspect these 2 things are
> inductive, because a pair of capacitive ( 60 +ve & 60 -ve
> wires are interwoven ) speaker cable ( made by UK's
> Monitor Audio in 1983 ) can produce less distortion from
> the same m-c spkrs & amplifier than straight ( not inter
> woven ) spkr cables can, such that FM broadcasts sounds
> more like CD`s.
1983? Your cables are dangerously worn, even if you have been
interchanging them left-to-right channel every three years and reversing
direction at least every 6 months, as I'm sure your manufacturer will
tell you. You must replace them at once, else you might as well be
listening to wax cylinders cranked by an arthritic monkey. .
> I presume this is because this cable's capacitance reduce m-c
> spkr & crossover networks' inductance, so power factor (
> between amplifier & spkrs ) is nearer to 1.
> Does any1 here know better ?
>
Well, sure in a grossly simplified analysis, but if you are planning on
listening to anything higher quality than an earpone plugged into a
radio shaped like a fuzzy dog, you'll obviously need to consider Bessel
functions of the Poitier reactance (an absolutely key concept to
understanding the fundamental principles of audiophilia). .
When you ordered your cables, did you include the recommended sketch of
the layout in your listening room, so that the cables can be properly
compensated for the Hall effect on the electron transit time? Careless
installers have been known to neglect the effect of the Earth's magnetic
field; installing a properly compensated pair of East-West cables
instead of the North-South variety will reveal new lucidity of the
midrange and an appealing truculence of the base, as well as new
confidence of the higher range.
But of course you knew all that.
Bill
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| Don Kelly 2007-04-20, 3:25 am |
| "Bill Shymanski" <wtshyman@mts.net> wrote in message
news:eZTVh.89890$mJ1.42436@newsfe22.lga...
>
> "TE Chea" <4ws@gmail.com> wrote in message
> news:462497d7_2@news.tm.net.my...
>
> 1983? Your cables are dangerously worn, even if you have been
> interchanging them left-to-right channel every three years and reversing
> direction at least every 6 months, as I'm sure your manufacturer will
> tell you. You must replace them at once, else you might as well be
> listening to wax cylinders cranked by an arthritic monkey. .
>
> Well, sure in a grossly simplified analysis, but if you are planning on
> listening to anything higher quality than an earpone plugged into a
> radio shaped like a fuzzy dog, you'll obviously need to consider Bessel
> functions of the Poitier reactance (an absolutely key concept to
> understanding the fundamental principles of audiophilia). .
>
> When you ordered your cables, did you include the recommended sketch of
> the layout in your listening room, so that the cables can be properly
> compensated for the Hall effect on the electron transit time? Careless
> installers have been known to neglect the effect of the Earth's magnetic
> field; installing a properly compensated pair of East-West cables
> instead of the North-South variety will reveal new lucidity of the
> midrange and an appealing truculence of the base, as well as new
> confidence of the higher range.
>
>
> But of course you knew all that.
>
>
> Bill
>
Bill, have you considered politics as a career? You have the necessary
talent.
--
Don Kelly dhky@shawcross.ca
remove the X to answer
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| Bill Shymanski 2007-04-20, 8:25 pm |
| "Don Kelly" <dhky@shaw.ca> wrote in message
news:RCVVh.99436$6m4.79230@pd7urf1no...
> "Bill Shymanski" <wtshyman@mts.net> wrote in message
> news:eZTVh.89890$mJ1.42436@newsfe22.lga...
reversing[color=darkred]
will[color=darkred]
planning on[color=darkred]
Bessel[color=darkred]
of[color=darkred]
properly[color=darkred]
Careless[color=darkred]
magnetic[color=darkred]
>
> Bill, have you considered politics as a career? You have the necessary
> talent.
>
No, but I could write for audio magazines if I could keep my stomach
from turning over....
Bill
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