Fully Differential R2R DAC

The FiiO K13 R2R features a proprietary four-channel fully differential 24-bit R2R DAC, with 48 precision thin-film resistors per channel and 0.1% tolerance. This advanced design reduces noise and FFT harmonics, delivering a quiet music background and exceptional fidelity across all playback.

Dual NOS/OS Modes

Enjoy flexibility in your listening. NOS (Non-Oversampling) preserves the original sampling rate for a natural, organic sound, while OS (Oversampling) upscales audio to 384kHz for enhanced detail and clarity. Native DSD decoding up to DSD256 ensures high-resolution compatibility and precise musical reproduction.

Desktop DAC and Headphone Amplifier Hub

The K13 R2R functions as a versatile desktop decoding hub with multiple inputs and outputs. It delivers high-quality headphone amplification and supports PCM up to 384kHz/32-bit and DSD256 decoding. FiiO’s ten-band PEQ via the companion app allows precise tuning for different headphones and listening preferences.

Advanced Multi-Rail Power Supply

A 30W switching power supply with nickel-plated shielding reduces interference and ensures clean power. The optional external DC input supports high-performance linear supplies. With 18 low-noise LDOs and five DC-DC converters, the K13 R2R provides stable, precise power for optimal sound quality.

Premium Components for Pure Sound

High-quality ELNA RA3 series capacitors and specialized audio-grade tantalum components maintain a warm, transparent, and low-distortion sound signature. Carefully selected parts ensure high-resolution clarity and a natural, detailed listening experience.

Powerful Output for Headphones and IEMs

Balanced output of 2400mW + 2400mW into 32Ω drives a wide range of headphones and IEMs, bringing out every subtle detail. Three gain levels and independent volume curves for preamp and headphone outputs allow optimal performance and adaptability with any setup.

Customizable Interface and Safety Features

A high-contrast LCD shows sampling rate, volume, and mode, while dual-knob controls provide precise adjustments. Customizable RGB lighting indicates audio settings and adds style. Built-in protection safeguards against overheating, overload, and abnormal conditions for reliable operation.

Wireless Connectivity

Bluetooth 5.4 support with LDAC, AAC, and SBC codecs allows high-quality wireless streaming. Combined with its advanced DAC, robust power supply, and user-friendly features, the K13 R2R is a versatile desktop audio solution for audiophiles seeking both precision and convenience.