Most AI's will have one (or more) dedicated headphone output. Just plug your heaphones there.i want to play both keyboards simultaneously and hear the audio output in my headphones - how can i arrange that having the aforementioned AI?
For monitors, connect those to Outputs 1 and 2 (for L and R)
Line Outs from the keys connect to Line Ins on the AI - correct. Usually you'll want your headphones connected to the 'phones' port. This is usually a powered port where you can adjust the headphones gain.I connect audio outputs from keyboards to the audio inputs (= line inputs?) and then audio output from the AI to my headphones?
The other Outputs (such as Out 1 and Out 2) usually go to your left monitor speaker and right monitor speaker, respectively.