[Jukebox-list] Please explain "impedence".

[David Breneman]

--- JHayes2613 at aol.com wrote:

> I guess I don't understand why the TSA-4 amp sounded lousy in my
> Seeburg SS-160... it sounded great when I ran a Dual turntable
> through it externally.

Impedance is to an alternating current (like an audio signal)
what resistance is to a direct current - the ease with which
the current passes through a circuit.  A dead short is usually
considered zero ohms impedance, and an open circuit is
infinity.  An impedance mismatch can cause distortion,
especially in a low voltage circuit like the output of a
magnetic phono pickup or a microphone, because the "two halves"
of the circuit aren't loaded equally.  That pretty much
depletes my knowledge on the subject - I only offer this
bonehead  explanation because nobody else has replied to your
question.


David Breneman         david_breneman at yahoo.com


       
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