1. Quick start guide, Windows USB DAC driver download link of K9 AKM
Quick start guide download link: Click here
FiiO USB DAC driver download:
v4.47.0 version: Click here (For Win7/8)
v5.58.0 version: Click here (For Win 10/11, not for Win7/8/XP)
Fiio Control App download: Click here
ꄘ0