Desktop Devices-DAC&Headphone Amp (3)

• What should I do if the K11/K11 R2R is abnormal?
• Operation introduction for K11 and K11 R2R
• K11/K11 R2R signal input, output, gain description

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• Quick start guide, DSP, DAC driver download link of K17
• How to upgrade the firmware for K17?
• How to control K17 via FiiO Control APP?

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• Quick start guide, DSP download link of K19
• What should I do if the K19 is abnormal? And safety instructions
• K19 accessory list, power supply instructions

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