Can I plug a microphone into GiO? Chris April 21, 2021 19:10 Updated No, GiO's input is specifically designed for 1/4" instrument sources such as an electric guitar or bass. Related articles How can I verify that the buttons on my GiO are transmitting data? Setting up GiO for GarageBand audio input and output Does GiO work with bass guitars? Can Gio be used with the USB MIDI Input on the Quartet? Is GiO compatible with Pro Tools? Comments 0 comments Article is closed for comments.