You can adjust several Airfoil Speakers settings from its Preferences window. Access the Airfoil Speakers Preferences by clicking the Airfoil Speakers menu bar icon.
General Settings
Start Airfoil Speakers at login: Turn this option on to have Airfoil Speakers run automatically when you login to your computer. This setting will mean your machine is always available for output from Airfoil.
Float above other applications: When on, the Airfoil Speakers window will float above all other windows, making it instantly accessible.
Automatically check for software updates: With this option activated, Airfoil Speakers compares itself to the most current version available from our server and alerts you when a new version is available. Leave this on to stay up-to-date.
Speaker
Name: You can adjust the name with which Airfoil Speakers appears in Airfoil's list. By default, your Mac's 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 audio through: This setting adjusts the output device through which audio from Airfoil Speakers plays.