MP3/Aux: The MP3/Auxiliary input jack is used with portable audio players. This signal will be mixed with the main source. To obtain the proper balance with the main signal, the level adjustments in the computer software and in the portable player will need to be adjusted. An example would be listening to an MP3 player while surfing the net and hearing associated sounds from various websites. The mixed sound may not be desirable, and you will ultimately determine how you use this feature.
