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Why output impedence should be low?

Updated: 4/28/2022
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14y ago

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Never heard the word "impedence".

To get all the audio voltage from a source to a target without loss you need voltage bridging, that is a relative low output impedance to a higher input impedance. Usualy the input impedance is at least ten times higher then the output impedance.
An input impedance is called also a load impedance or an external impedance.
An output impedance is called also a source impedance or an internal impedance.

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Q: Why output impedence should be low?
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