FiiO K13 R2R - Black - Silver

Description

24-Bit Fully Balanced R2R Architecture
The FiiO K13 R2R combines advanced digital and analog design in a desktop format, featuring a proprietary four-channel, fully differential 24-bit R2R resistor array DAC. Each of the 48 ultra-precise thin-film resistors per channel (192 total) offers 0.1% accuracy and minimal temperature drift (30 ppm), ensuring an exceptionally pure and musical sound signature. Switch between OS (Oversampling) and NOS (Non-Oversampling) modes to tailor the sonic character to your preference—whether analytical precision or natural warmth.

Powerful Headphone Amplification
Delivering a remarkable 2400 mW of balanced output at 32 Ω, the K13 R2R effortlessly drives both high-sensitivity IEMs and full-size audiophile headphones with authority and control. The amplifier section is designed to extract every detail from your favorite recordings, rendering wide dynamics and rich harmonic textures. With three adjustable gain levels, it maintains optimal performance across different headphone types.

Dual Power Design for Purity and Precision
The K13 R2R employs a DC/AC dual power supply system for optimal noise isolation and consistent performance. Its built-in 30 W switching power supply is encased in a nickel-plated alloy shield for superior interference protection, while an optional external DC input allows connection to a linear power supply for enhanced tonal refinement. Inside, 18 low-noise LDO regulators and 5 DC-DC converters feed multiple voltage rails, ensuring a stable, low-noise environment. Premium ELNA RA3 silk-film capacitors and specialized tantalum electrolytics deliver the warmth, clarity, and depth characteristic of high-end analog circuits.

Comprehensive Connectivity and Digital Flexibility
Serving as both a DAC and preamplifier, the K13 R2R supports PCM playback up to 384 kHz/32-bit and DSD256 decoding. Its wide I/O configuration includes USB-C, coaxial, and optical inputs, along with balanced XLR and dual RCA line outputs for integration with active speakers or external amplifiers. Bluetooth 5.4 with LDAC ensures seamless wireless streaming at high resolution. The unit is complemented by a bright LCD display, RGB-adjustable ambient lighting, and a remote control for convenient operation.

Customizable Control and User Interface
A built-in 10-band parametric equalizer (accessible via computer) offers precise tone shaping, allowing users to modify frequency response curves to personal preference. Timer shutdown (1–99 minutes) adds usability, while the RGB-illuminated dials and top-panel window let users customize color and brightness.

What’s in the box
FiiO K13 R2R DAC / Headphone Amplifier
Remote control
USB-C cable
6.35 mm adapter