What are LINE/PORTABLE/OFF of AUX? How should each of them be used?
When you will not use AUX input, you can prevent noise inflow by setting OFF.
LINE/PORTABLE indicate the audio amplification amount.
When, for example, connecting a CDJ, select LINE(0dB GAIN).
When, for example, connecting the HP analog output of a portable audio player, select PORTABLE (+12dB GAIN) because the output level will be low.
