impedance of soundcard port

userrew

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hello,
what is the impedance of line in/mircophone input port and impedance of speaker output port of laptop soundcard? typical values would do.

thank you
 
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bobinuta

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Feb 3, 2023
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Preamp, Processor or Receiver
Benytone X-Calibre MC4000
Main Amp
Benytone X-Calibre MA4000
Computer Audio
Asus Xonar D1 & U5
Universal / Blu-ray / CD Player
Benytone MCD4000
Front Speakers
self made VTP (Voigt Tapered Pipes)
Other Equipment
Benytone Stereo Tuner MTU-3100
hello,
what is the impedance of line in/mircophone input port and impedance of speaker output port of laptop soundcard? typical values would do.

thank you
Over a year passed, I know - however :
- as John said, depends on the hardware of the soundboard ;
- however, there will be some exceptions. One of them is my ASUS Xonar D1 soundboard, where Cirrus Logic CS4398 is the DAC;
according to the specs, Zout = 118 ohms (datasheet), but I measured 99 ohms .
The line input has a relatively low impedance of 3.8-3.9 kohm (datasheet), and I measured 3.65K.
 
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