1. Quick start guide, DSP download link of K19

Quick start guide download link

Click here

FiiO USB DAC driver download(K19 is not compatible with Win7/8)

Click here

K19 Dedicated DSP

Windows version download: Click here

MAC version: Click here

(You could also search and download 'FiiO DSP' from the APP store. )

FiiO Control App download

Android version: Click here

iOS version: You could search and download 'FiiO Control' from the APP store.