I am new to the Uno Synth Pro x and would like to use the audio in with another synth I own in order to use filters and effects from the uno. When I plug my other synth in to the audio-in on the uno I am only able to use filters when I am also pressing a key on the uno at the same time. This is the only time the other synth comes through. Am I doing something wrong? Is it capable of just running through the uno without making sounds on the uno itself? If so, I may need to return it.
Chris