Windows system

1. FiiO USB DAC driver(For FIIO Products with UAC 2.0 function)

V5.68.0 version download link: Click here  (For Win 10/11, not for Win7/8/XP)

V4.47 version download link: Click here (For Win7)

Note: 

1. This driver not compatible with the KA2, KA3 and KA5!

2-1. K17/KA17/KA15/KA13/KA1/KA11/K11/K9/K9 AKM/Q15/Q11 is not compatible with Win7, please do not download V4.47 version. 

2-2. If you would like to use the products above in Win7 still, you could try to set the UAC mode to UAC1.0 in the product for help. 

2. FiiO USB Audio Driver (For KA2 or KA3 or KA5) 

Download link: Click here

3. KB3 HiFi keyboard exclusive driver

Download link: Click here

4. How to use the FiiO device as USB DAC: 

Click here

5. How to play DSD files:

Click here

Take BTR7 as example: 

MAC system

How to use the FiiO device as USB DAC: Click here

No driver is required.

Take BTR7 as example: 

Mobile phone

No driver is required.

Take BTR7 as example: