RAD27 - USB AudioThe RAD27 provides a USB audio interface to the HAL system capable of simultaneous stereo playback andrecording. Since the RAD27 uses native operating system drivers, no driver installation is required on either Win-dows operating system or Apple OS X. Once the operating system recognizes the RAD27, the blue "Connected"LED on the RAD27 illuminates.Macintosh Computer SetupWhen OS X detects the RAD27, it adds it to the list of audio input and output devices, but does not automaticallyset it as the default device. Some OS X based applications allow you to select the device you want to use. Otherapplications only use the device specified as the OS X default. We recommend that you set the default audio inputand output device to the RAD27 before starting the application you want to use.Configure the default audio device in OS X by navigating to:System Preferences > Sound > Output:CHAPTER 2: Hardware Component Details39
