xDuoo Link3 - USB-C DAC and Headphone Amplifier

Exceptional Sound in a Compact Form

The xDuoo Link3 is an advanced digital-to-analog converter (DAC) with built-in headphone amplifier that transforms your smartphone, tablet, or computer into a professional audio source. With support for high-resolution formats including PCM 32Bit/768kHz and DSD512, the Link3 delivers studio-grade sound quality in an elegant, portable package.


Key Features

Professional Audio Components

  • Dual ES9039Q2M DAC chips - flagship ESS converters, each responsible for decoding a single channel, delivering higher resolution and more accurate sound image positioning
  • Audio parameters: 130 dB SNR dynamic range, -120 dB THD distortion, channel separation ≥123 dB (balanced output)
  • XMOS XU316 USB chip - 16-core processor ensuring ultra-low latency and precision audio signal transmission
  • SG8262 amplifier chips - dual chips providing exceptionally high output power
  • Sampling rate: PCM 16-32Bit/44.1k-768kHz, DSD 1Bit/2.82m-22.57mHz

High Output Power

Link3 offers two operating modes tailored to your needs:

Normal Power Mode (powered via audio port):

  • Unbalanced output (3.5mm): up to 360mW @ 32Ω, 200mW @ 75Ω, 100mW @ 150Ω, 50mW @ 300Ω
  • Balanced output (4.4mm): up to 700mW @ 32Ω, 540mW @ 75Ω, 270mW @ 150Ω, 130mW @ 300Ω

Super Power Mode (external USB power with PD3.0 protocol):

  • Unbalanced output: up to 500mW @ 32Ω, 310mW @ 75Ω, 160mW @ 150Ω, 80mW @ 300Ω
  • Balanced output: up to 1000mW @ 32Ω, 610mW @ 75Ω, 300mW @ 150Ω, 150mW @ 300Ω

With such high power output, Link3 effortlessly drives even demanding planar magnetic headphones and models with large dynamic drivers.

Universal Compatibility

Link3 works seamlessly with a wide range of devices:

  • Smartphones with Android, iOS (Apple devices with Lightning interface require external power)
  • Computers with Windows, macOS
  • Gaming consoles Nintendo Switch, PlayStation (UAC1.0 mode)
  • Tablets iPad, Android

Intelligent USB Modes

  • UAC1.0 - low-speed mode (max 16bit/48kHz), primarily for compatibility with Switch and PlayStation consoles
  • UAC2.0 - high-speed mode supporting high sampling rates and DSD format
  • HUB Mode - enables opening and playing songs from microSD card via smartphone/computer with signal transmission to Link3 for decoding (power consumption: 5V/0.38A, external power recommended when using with smartphone)

Dual Headphone Outputs

  • 3.5mm stereo output - perfect for everyday headphones (no microphone function)
  • 4.4mm balanced output - provides stronger drive and excellent channel separation for the most demanding models (balanced headphones only)

Precision Volume Control

100-level digital volume control enables smooth, stepless volume adjustment, perfectly matched to headphones of any impedance and sensitivity.

Expandable Storage with HUB Function

MicroSD card slot up to 2TB (Fat32 and exFat) enables storage of an enormous library of lossless audio files. After enabling HUB mode, you can browse and play tracks from the card directly through your smartphone/computer, with Link3 handling audio decoding.

Advanced Audio Features

Gain Adjustment

  • Low gain (L) - for low-impedance headphones
  • High gain (H) - for high-impedance headphones

Built-in EQ with 4 Modes

  • MUSIC - optimized for music listening
  • MOVIE - enhanced cinematic effects
  • GAME - precise spatial audio for gamers
  • OFF - neutral sound without equalization

DAC Filters (FIR1-FIR4)

  • FIR1 - Minimum phase
  • FIR2 - Linear phase fast roll-off apodizing
  • FIR3 - Linear phase fast roll-off
  • FIR4 - Linear phase fast roll-off low ripple

TFT Color Display with Full Control

  • Real-time parameter display: EQ, volume, filter, gain, sampling rate and format
  • Customizable font colors - personalize the interface
  • Brightness adjustment - extend display lifespan
  • Auto screen-off - power saving with configurable time (or continuous-on mode)

Multi-color LED Indicating Sampling Rate

  • Red - 44.1k-48kHz
  • Cyan - 88.2k-96kHz
  • Yellow - 176.4k-768kHz
  • White - DSD64-512

Additional Features

  • Multi-function playback button: play/pause, track skipping (functionality may vary depending on Android system)
  • Volume buttons: short press - change by 1 level, long press - quick change
  • Menu button: long press (2 seconds) - enter/exit menu
  • CNC aluminum housing with dual glass panels - elegant design and solid construction
  • Detachable USB-C cable - high-quality cable with 8-core oxygen-free copper eliminating EMI and separating power/signal lines for cleaner sound
  • Battery-free design - powered directly from source device
  • USB fast charging port - charge your phone while listening to music with simultaneous Super Power mode activation (PD3.0 protocol support)

Technical Specifications

Input Interface: USB Type-C
Power Consumption: 5V/0.27A (0.3W), in HUB mode: 5V/0.38A
USB System: UAC1.0 / UAC2.0 / HUB
Sampling Rate:

  • PCM 16-32Bit/44.1k-768kHz
  • DSD 1Bit/2.82m-22.57mHz

Headphone Outputs: 3.5mm stereo + 4.4mm balanced

Output Power - Super Power Mode (external power):

Unbalanced (3.5mm):

  • 500mW @ 32Ω
  • 310mW @ 75Ω
  • 160mW @ 150Ω
  • 80mW @ 300Ω

Balanced (4.4mm):

  • 1000mW @ 32Ω
  • 610mW @ 75Ω
  • 300mW @ 150Ω
  • 150mW @ 300Ω

Output Power - Normal Power Mode (powered via audio port):

Unbalanced (3.5mm):

  • 360mW @ 32Ω
  • 200mW @ 75Ω
  • 100mW @ 150Ω
  • 50mW @ 300Ω

Balanced (4.4mm):

  • 700mW @ 32Ω
  • 540mW @ 75Ω
  • 270mW @ 150Ω
  • 130mW @ 300Ω

Audio Parameters:

Unbalanced (3.5mm):

  • THD+N: 110dB @ 1kHz
  • SNR: ≥120dB
  • Crosstalk: ≥75dB

Balanced (4.4mm):

  • THD+N: 112dB @ 1kHz
  • SNR: ≥130dB
  • Crosstalk: ≥123dB

Frequency Response: 20Hz~20kHz (±0.5dB)
Expansion: Micro SD (Fat32/exFat), maximum capacity 2TB
Dimensions: 10.7 × 3.8 × 1.5 cm
Weight: 70g


Package Contents

  • xDuoo Link3
  • USB-C to USB-C cable × 1
  • User manual × 1
  • Warranty card × 1

Who Is It For?

The xDuoo Link3 is the perfect solution for:

  • Mobile audiophiles seeking studio-quality sound on the go
  • Gamers requiring crystal-clear audio with low latency and dedicated EQ mode
  • Professionals working with music on mobile devices
  • Console owners of Nintendo Switch and PlayStation desiring better sound quality
  • Users with large music collections utilizing microSD expansion
  • Anyone who wants to unlock the full potential of their premium headphones

xDuoo Link3 - Discover True Sound Quality, Wherever You Are.