Home › Forums › temp › Using PC for audio source – Is earphone jack sufficient? › Come to Think of It
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Come to think of it I have always carried a timid dis-trust of “head phone outputs,” but without any certain knowledge of what they provide (aside from listening on headphones).
My un-informed impression is that headphone outputs have a higher power level than line outputs, perhaps 1-watt or more, which, as has been said, can overload many inputs.
On the other hand I also suspect, but don’t know for sure, that there is no real standard for headphone outputs.
Another impression, un-founded, is that headphone outputs must be properly “matched,” that is, if they are 8-ohms, then the headphones should be 8-ohms. Failure to provide a match can perhaps damage the headphone output transistors, but I am guessing.
One problem we have a lot of today is either poor or no circuit documentation with computer equipment. There was a good TWiRT (This Week in Radio Tech) program about the lack of manuals with today’s equipment.