FiiO K13 R2R, Desktop DAC and Amplifier: R2R Resistor Array NOS/OS Dual Mode 2400mW Balanced DAC/AMP (K13R2R)

FiiO K13 R2R


Key Features:

Proprietary R2R DAC Architecture
- Fully differential 24-bit R2R resistor array with 192 precision thin-film resistors (0.1% accuracy)
- Dual NOS/OS modes: Non-Oversampling for authentic sound, Oversampling up to 384kHz for refined clarity
- Supports PCM 384kHz/32bit and native DSD256 decoding for high-resolution audio playback

High-Power Balanced Amplification
- Delivers 2400mW + 2400mW balanced output power @32Ω for demanding headphones
- Fully balanced audio amplifier circuit with excellent interference rejection and minimal distortion
- Three gain levels and independent volume curves for optimal matching with various headphones

Advanced DSP & Customization
- 10-band high-precision parametric EQ (PEQ) with FiiO Control app and web interface support
- Supports preset tunings, headphone frequency response correction, and curve sharing
- Adjustable RGB lighting indicating sampling rates with customizable colors and effects

Dual Power Supply System
- Built-in 30W switching power supply with alloy nickel-plated shielding for clean power
- External DC input (12V-2.5A) supports connection to linear power supplies
- Multi-rail power with 18 low-noise LDOs and 5 DC-DC converters for robust performance

Technical Specifications:
- DAC Type: Fully differential R2R resistor array (192 resistors)
- Output Power: 2400mW + 2400mW (@32Ω balanced)
- Sample Rates: PCM 384kHz/32bit, DSD256
- Bluetooth: 5.4 with LDAC, AAC, SBC support
- Inputs: USB, Optical, Coaxial, Bluetooth
- Outputs: 6.35mm SE, 4.4mm BAL, XLR/RCA preamp
- Power: Internal 30W SMPS + external DC input (12V-2.5A)
- Display: Custom HD LCD with sampling rate, volume, gain status

Package Includes:
- K13 R2R DAC/Amplifier Unit
- Infrared Remote Control
- AC Power Cord
- USB Data Cable
- 6.35mm to 3.5mm Headphone Adapter
- Quick Start Guide & Warranty Card