Fiio K5 Pro Desktop Headphone Amplifier Quick Start Guide

Quick start guide for the Fiio K5 Pro desktop headphone amplifier/USB DAC, covering buttons, ports, operation, and safety notes.

Brand: Fiio
Category: Audio Power Amplifier
Document type: Quick Start Guide
Language: English
Pages: 4
File format: PDF
File size: 344 KB
Published: 28 September, 2026
Updated: 28 September, 2026
MD5 checksum: 189D565036A40F1F5D166D17794C307D
PDF: Fiio K5 Pro Desktop Headphone Amplifier Quick Start Guide PDF

About this manual

This guide introduces the Fiio K5 Pro, a desktop headphone amplifier and USB DAC. It describes the front‑panel controls, input and output ports, and the power/volume knob used to operate the device.

Key sections explain how to power the unit on and off, the priority rules for coaxial and optical inputs, supported audio formats, driver installation for Windows, and important safety precautions. A checklist of items included in the package is also provided.

What's inside

Buttons and ports
Power on/off
Input and output priority
Supported audio formats
Driver installation
Precautions
Package contents

Specifications

Supported PCM sampling rate	up to 192/176 kHz
Gain settings	HIGH +10 dB, MID +6 dB, LOW 0 dB
Input ports	Coaxial, Optical, Line, USB
Power supply	DC power input

Frequently asked questions

Which input has priority when both coaxial and optical are connected?

The coaxial input takes priority; unplug the coaxial cable if you want to use the optical input.

Download PDF (344 KB)