Windows system

1. FiiO USB DAC driver

v5.50.0 version: Click here (If you are using Q11,please use this driver)

v5.30.0 version: Click here  (For Win 10/11, not for Win7/8/XP) 

(This driver is compatible with the KA1 but NOT with the KA2, KA3!)

v4.47 version: Click here (For Win7)

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