1. Quick start guide, Windows USB DAC driver download link of K9
Quick start guide download link: Click here
FiiO USB DAC driver download:
v4.47.0 version: Click here (For Win7/8)
v5.30.0 version: Click here (For Win 10/11, not for Win7/8/XP)
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Quick start guide download link: Click here
FiiO USB DAC driver download:
v4.47.0 version: Click here (For Win7/8)
v5.30.0 version: Click here (For Win 10/11, not for Win7/8/XP)