[Windows PC]
1.It runs drive-free in Windows 10 and above systems.
2.Install the FiiO USB DAC driver. It supports ASIO output for further DSD512. Please click the link here to download the driver: Click here
3.On the menu of settings - audio output device of the playback software, select "FiiO KA15" and then connect the KA15 to the headphones to listen to music.
DSD track playback settings:Click here
[MAC computer]
MAC systems do not need a driver. If connecting to a Type-C port of the computer, use a Type-C to Type-C cable for direct connection. If connecting to a USB-A port, use a USB-A to Type-C cable for connection. Please select "FiiO KA15" as the audio output device on the computer.
[Linux PC]
Linux system also runs drive-free. Theoretically, connecting the KA15 directly to a Linux computer would work. But since there are too many versions, we cannot guarantee all systems are compatible. So, if the connection fails, it is suggested to change the data cable or USB port to troubleshoot the problem. Otherwise, the failed recognition means nonsupport.
About the Exclusive USB Audio Access Mode
Due to system and hardware differences of certain Android mobile phones, there may be some permission conflicts and compatibility issues when they are working in the Exclusive USB Audio Access Mode. Here are some situations we have noticed.
1.For some mobile phones with no physical volume buttons (such as the HUAWEI Mate30 Pro), in the FiiO Music app USB Audio Access Mode, you can adjust the volume by sliding on the current playback page to bring up the volume bar.
2. For some mobile phones, third-party apps are forbidden in the background by default in their power management policies. This will cause a stop on the playback after a few seconds when the music app is working in the Exclusive USB Audio Access Mode. If it happens, please set the app to stay working while asleep in the battery management setting of the mobile phone.
3. When the music app is working under the Exclusive USB Audio Access Mode, the sound may be stuttered or paused when operating other apps. We are working on this issue. It is suggested to focus on listening to music when using the Exclusive USB Audio Access Mode, or disable the Exclusive USB Audio Access Mode when listening to music.