Owner's Manual

Using the Device 36
User Guide
Playback is unavailable when settings exceed the supported formats.
The Previous, Play, and Next buttons are unavailable when connected
as a USB DAC.
Playback may stutter when computer performance is slow or the
USB connection is experiencing heavy usage.
There may be issues with audio-to-video synchronization during
video playback depending on the sound quality and operating environment.
Volume cannot be adjusted via the Windows volume control. The
volume wheel on the device or volume control on the appropriate
program must be used to adjust the volume.
Install a dedicated driver to use the AK device as a USB DAC.
The driver file is located in SR25\Internal_Storage\SR25_
Contents\Driver. Before installing the driver, set device to USB DAC
mode and connect to the computer.
USB DAC
Installation
The USB DAC function allows the device to be recognized
as a sound card on a computer. Music from the computer is
played through the device’s headphone port for an enhanced
listening experience.
USB DAC Specifications
Supported OS
Windows 7(32bit/64bit) / Windows 8(32bit/64bit) /
Windows 10(32/64bit)
MAC OS 10.7(Lion) or later
USB DAC Support Specifications
Supported Formats: PCM [8~384kHz(8/16/24bit)]
DSD [2.8/5.6/11.2MHz]
Control the volume with the AK device’s volume wheel.