Installation guide

For more details, see the manuals that accompany the AM1 and AM2. More information on these RADs is also

available in the Halogen Help System.

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:

System Preferences > Sound > Input:

HAL SYSTEM DESIGN GUIDE