Symphony I/O: Configuration Settings in Apple GarageBand

1. In GarageBand, choose GarageBand Preferences.

2. In the Preferences pane, click Audio/MIDI.

3. Select Symphony64 or Symphony I/O: USB Audio (depending on which mode you're in) in the Audio Output and Audio Input drop down menus.

4. Show the Track Info pane by double-clicking the track icon, then click Real Instrument.

5. At the bottom of the pane, set the Input Source to the desired Symphony I/O input (or input pair).

6. Set Monitor to On.