Line in will usually be stereo and about 10Kohm impedance.
Mic in is mono and about 600-1Kohm impedance and expecting SIGNIFICANTLY lower levels than the line, as it has a preamp to pick up the very low levels present in a microphone.
http://sound.stackexchange.com/questions/27539/difference-between-microphone-and-line-in-inputs
Mic in is mono and about 600-1Kohm impedance and expecting SIGNIFICANTLY lower levels than the line, as it has a preamp to pick up the very low levels present in a microphone.
http://sound.stackexchange.com/questions/27539/difference-between-microphone-and-line-in-inputs
