K13 R2R

FiiO K13 R2R Balanced Desktop DAC & Headphone Amplifier

The FiiO K13 R2R brings true audiophile performance to the desktop with a fully discrete R2R DAC architecture, powerful balanced amplification, and versatile wired and wireless connectivity. Designed for headphone enthusiasts and serious listeners, it delivers a natural, analog-like sound signature with modern flexibility and precise tuning control.

Key Features

True R2R DAC Architecture:
Built around a fully differential 24-bit R2R resistor array DAC, the K13 R2R delivers a rich, organic, and highly musical sound with exceptional low noise and distortion, offering a distinct alternative to conventional delta-sigma DACs.

Dual Sound Modes (NOS & OS):
Switch between Non-Oversampling (NOS) mode for a pure, unfiltered listening experience, or Oversampling (OS) mode for enhanced clarity and resolution, allowing you to tailor the sound to your preference.

Powerful Balanced Amplification:
With up to 2400mW + 2400mW output via the balanced headphone output, the K13 R2R easily drives demanding full-size headphones while maintaining excellent control and dynamics.

High-Resolution Wireless Audio:
Bluetooth 5.4 support with LDAC, AAC, and SBC enables high-quality wireless streaming from smartphones, tablets, and computers without sacrificing sound fidelity.

Advanced Parametric EQ:
A built-in 10-band parametric EQ allows precise sound customization through the FiiO Control app or web interface, including preset profiles, headphone correction curves, and user-shared EQ settings.

Versatile Desktop Connectivity:
Equipped with USB-C, optical, and coaxial digital inputs, the K13 R2R integrates seamlessly into desktop, laptop, and hi-fi systems, serving as a powerful audio hub.

Premium Design & Display:
Housed in a CNC-machined aluminum chassis, the K13 R2R features a clear LCD screen for real-time status monitoring and customizable RGB lighting for a refined desktop aesthetic.

Specifications

DAC Type: Fully differential 24-bit R2R DAC

Amplifier Output Power: Up to 2400mW + 2400mW (balanced)

Inputs: USB-C, Optical, Coaxial, Bluetooth

Outputs: Balanced headphone output, single-ended headphone output

Bluetooth Version: 5.4

Supported Bluetooth Codecs: LDAC, AAC, SBC

EQ: 10-band parametric EQ

Display: Integrated LCD screen

Chassis Material: CNC-machined aluminum

Included Accessories

Power adapter
USB cable
Quick start guide