Headphone socket output impedance.

  VCR97 19:22 05 Jul 05
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Do laptop/notebook computers have a standard o/p impedance? If so, what is it? I asked the suppliers of my notebook what it's o/p impedance is but they don't know!

  octal 19:40 05 Jul 05

Normally the output should match 32O heaphones. Because of the low output the headphone impedance is not that importent, you can use any impedance up to 1kO or more.


If its line output it will be 10kO which is no good for phones.

  octal 19:41 05 Jul 05

That O=ohm, it doesn't translate on this forum.

  Mikè 19:41 05 Jul 05

Most headphone sockets (and I don't expect a laptop to be any different) have an impedance of about 32/75 ohms, not to be confused with the impedance of suitable headphones.

  VCR97 20:19 05 Jul 05

Thanks both. I had a feeling that 32 ohms was the figure and I do like to match my Zs.

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