Windows system

1. FiiO USB DAC driver

(This driver not compatible with the KA2, KA3 and KA5!)

(You could use this USB DAC driver if your FiiO product is listed in this link: Click here)

v5.50.0 version: Click here or Click here(For Win 10/11, not for Win7/8/XP)

(If you are using Q11,please download this version)

v4.47 version: Click here (For Win7)

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

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

4. 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: