RAD27 - USB Audio
The RAD27 provides a USB audio interface to the HAL system capable of simultaneous stereo playback and
recording. 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 Setup
When OS X detects the RAD27, it adds it to the list of audio input and output devices, but does not automatically
set it as the default device. Some OS X based applications allow you to select the device you want to use. Other
applications only use the device specified as the OS X default. We recommend that you set the default audio input
and 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 Details
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