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English Desktop Headphone Amplifier/USB DAC Buttons and ports labeled ② ② ② ② ② ② ② ② ② A. Input (Top: COAX / OPTICAL IN; Middle: LINE IN; B. Gain (Top: HIGH-10dB; Middle: MID-6dB; Bottom: Bottom: USB IN) LOW-0dB) C. Power/Volume knob D.
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Operation explained Power on/off Turn the "Power/Volume" knob until a click sound is heard to turn on the device; keep turning clockwise to increase volume; Turn anticlockwise to decrease volume, turn anticlockwise until a click sound is heard to turn off the device. Indicator 44.1kHz or 48kHz Blue light...
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Download link: https://www.fiio.com/supports; When using with a MAC OS computer, it doesn't need any drivers. Please choose the corresponding output device Precautions ★In case of system error, please try to unplug and replug the USB cable to resume.