Preferences
You can adjust several Airfoil Speakers settings from its Preferences window. Access the Airfoil Speakers Preferences by clicking the Airfoil Speakers menu bar icon.
Airfoil Speakers' Preferences window
General
Start Airfoil Speakers at Login: Turn this option on to have Airfoil Speakers run automatically when you login to your computer. Turning this on will mean your machine is always ready to receive audio from Airfoil.
Float Above Other Applications: When on, the Airfoil Speakers window will float above all other windows, making it instantly accessible at all times.
Speaker
Name: You can adjust the name with which Airfoil Speakers appears in Airfoil's list. By default, your Mac's machine name is used for this setting.
Require Password to Connect: When active, a password will be required to connect to the Airfoil Speakers output. Use this setting to prevent undesired audio playback.
Play Local Audio Through
Play Audio Through: This setting adjusts the output device through which audio from Airfoil Speakers plays.
Software Update
Automatically Check for Software Updates: With this option activated, Airfoil Speakers periodically compares itself to the most current version available from our server and alerts you when a new version is available. Leave this on and Airfoil Speakers will help you stay up-to-date. You can also click the "Check for Update" button to initiate a check manually.