If you would like to connect the HA-2SE to a computer and use it as the computer's sound output device, a software driver may be required.
For Windows 7, 8 and 10: software driver download link (version 3.34, released on 9/26/2016).
Please unzip the downloaded package and double-click on the "setup.exe" file, then follow the on-screen instructions to finish this installation. Select the HA-2SE as your sound output device by setting "Control Panel -> Hardware and Sound -> Sound -> Playback" to "OPPO HA-2 USB Audio 2.0 DAC". (HA-2SE shows up as HA-2 in the device driver.)
For Mac computers, no software driver is required. Please set "System Preferences -> Sound -> Output" to "OPPO HA-2 USB Audio 2.0 DAC".
For iOS, Android and Chrome OS devices, no software driver is required. Recent Linux systems that support USB Audio Class 2.0 do not require software driver either.