FiiO K13 R2R Desktop DAC & Headphone Amplifier

Quick Start Guide

Welcome to FiiO K13 R2R

This guide provides essential information to help you set up and begin using your FiiO K13 R2R, a versatile desktop Digital-to-Analog Converter (DAC) and headphone amplifier.

Device Overview

The FiiO K13 R2R is designed for high-fidelity audio playback, offering robust connectivity and flexible power options.

Front Panel Features

The front panel of the K13 R2R includes:

Volume (VOL) Knob: Adjusts the audio output volume.
Gain (GAIN) Switch/Knob: Selects the appropriate gain level for your headphones.
POWER Button: Turns the device on or off.
INPUT Button: Selects the audio input source (e.g., USB, Optical, Coaxial).
OUTPUT Button: Selects the audio output mode (e.g., Line Out, Pre Out).
MODE Button: Cycles through different operational modes.
EQ Button: Activates or adjusts equalizer settings.
DAC Button: Selects DAC-specific functions or modes.
AMP Button: Selects amplifier-specific functions or modes.

Rear Panel Connectivity

The rear panel provides comprehensive input and output ports:

AC/DC IN: Universal power input port.
DC 12V: Dedicated 12V DC power input.
USB: Connect to computers or other USB audio sources.
OPT (Optical): Connect via optical TOSLINK cable.
COAX (Coaxial): Connect via coaxial S/PDIF cable.
LINE OUT: Fixed-level analog audio output.
PRE OUT: Variable-level analog audio output for connecting to power amplifiers or active speakers.

Power Management

The K13 R2R offers dual power input options for enhanced usability:

AC Power: To utilize AC power, ensure the AC/DC power switch located on the rear panel is set to the 'AC' position. Connect the provided AC power adapter and turn it on.
DC Power: For external DC power, set the AC/DC power switch to the 'DC' position. Connect a compatible 12V DC power supply (ensure it meets the device's power requirements).

Technical Specifications

Parameter	Specification	Unit
Model	K13 R2R
Power Supply	AC Input / DC 12V
Supported Digital Inputs	USB, Optical, Coaxial
Analog Outputs	Line Out, Pre Out
Supported Sample Rates (USB)	Up to 384kHz/32bit, DSD256
Supported Sample Rates (Optical/Coaxial)	Up to 192kHz/24bit
Headphone Output Power	e.g., 150mW (32Ω)
THD+N	< 0.001%
SNR	> 110dB

Getting Started

Connect your audio source to the appropriate input (USB, Optical, or Coaxial). Connect your headphones or speakers to the Line Out or Pre Out ports. Select your desired input and output using the front panel buttons. Adjust volume and gain as needed.

For detailed instructions on advanced features, modes, and troubleshooting, please refer to the complete user manual.

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