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audioart 10th February 2004 10:46 AM

About the wire impendence
Dear Sir

I'd like to diy a XLR wire for my pre amplifier to power amplifier use ,Should the wire impendence match the power amp input impendence or not? For example.My amp are classe ca-100
the input impendence are 75Ohm.

anything else should be pay attention too?

Thank you~:)

fscarpa58 10th February 2004 12:19 PM


are you shure that the input impedance
of your amplifier is 75 Ohm?

maybe 75k Ohm ?

or perhaps 75 Ohm is the output impedance
of the preamplifier.


Jax 10th February 2004 12:44 PM

There is no need to match impedances at audio frequencies. You can use whatever suits you ;)

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