XDUOO Link V2 Digital Portable DAC Headphone Amplifier User Manual

Introduction

The XDUOO Link V2 is a portable Digital-to-Analog Converter (DAC) and headphone amplifier designed to enhance the audio experience from mobile devices and computers. It integrates a low-power decoding chip and headphone amplifier chip, providing high-resolution audio output.

• Hi-Res Audio Support: The Link V2 conforms to Hi-Res Audio standards, supporting up to 32bit/384 kHz PCM and DSD256 audio input. It features a Signal-to-Noise Ratio (SNR) of 125dB, improving the sound quality from mobile devices and providing a 3.5mm headphone port for devices that lack one.
• High-Performance Decoding Chip: Equipped with a CS43131 decoding chip, the Link V2 supports PCM decoding up to 32bit/384kHz and DSD256, allowing for greater detail and accurate reproduction of lossless audio.
• USB DAC for PC: When connected to a computer via a USB adapter, the Link V2 functions as a plug-and-play USB DAC. It is compatible with MAC, Windows (7/8/10/11), and Linux operating systems, which typically integrate UAC2.0 drivers.
• Low Power Consumption and High Output: The Link V2 includes a professional power amplifier that dynamically adapts to headphone impedance. It can drive headphones with impedance up to 600Ω.
• Adaptive Power Adjustment: The device intelligently adjusts its output power based on the impedance of the connected headphones, preventing over-driving and protecting your earphones.

Package Contents

Verify that all items are present in the package:

• 1 x XDUOO Link V2 DAC Headphone Amplifier
• 1 x User Manual

Product Overview

The XDUOO Link V2 is a compact device designed for portability and ease of use. It features a Type-C input for connection to source devices and a 3.5mm output for headphones.

Figure 1: Angled view of the XDUOO Link V2 DAC.

Figure 2: Top view of the XDUOO Link V2 DAC with control buttons.

Setup

Connecting to a Mobile Phone

1. Ensure your mobile phone has a Type-C USB port. The Link V2 is designed exclusively for Type-C mobile phones.
2. Connect the Type-C connector of the Link V2 to your mobile phone's Type-C port.
3. Plug your 3.5mm headphones into the 3.5mm headphone output port of the Link V2.
4. The device should be automatically recognized by your phone, and audio will be routed through the Link V2.

Connecting to a Computer (PC/MAC/Linux)

1. Connect the Type-C connector of the Link V2 to an available USB port on your computer. A USB-A to Type-C adapter may be required for computers without a Type-C port.
2. Plug your 3.5mm headphones into the 3.5mm headphone output port of the Link V2.
3. The Link V2 is plug-and-play for most modern operating systems (Windows 7/8/10/11, MAC, Linux) as they typically integrate UAC2.0 drivers.
4. Select the Link V2 as your audio output device in your computer's sound settings.

Operating Instructions

The Link V2 features intuitive controls for audio playback.

Figure 3: XDUOO Link V2 Operating Guide.

• Volume Up (Volume+): Press the top part of the volume rocker switch to increase the audio volume.
• Volume Down (Volume-): Press the bottom part of the volume rocker switch to decrease the audio volume.
• Play/Pause Key: Press the circular button to play or pause audio playback.

Maintenance

To ensure the longevity and optimal performance of your XDUOO Link V2, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquid cleaners or solvents, as they may damage the finish or internal components.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts.
• Connections: Always grasp the connector when plugging or unplugging cables. Do not pull on the cable itself.

Troubleshooting

If you encounter issues with your XDUOO Link V2, refer to the following points:

• No Sound Output:
  • Ensure the Link V2 is securely connected to your source device (mobile phone or PC).
  • Verify that your headphones are properly plugged into the 3.5mm output port.
  • Check the volume levels on both the Link V2 and your source device.
  • If connected to a PC, ensure the Link V2 is selected as the default audio output device in your sound settings.
• Device Not Recognized:
  • Confirm that your mobile phone has a Type-C USB port. The Link V2 is compatible only with Type-C phones.
  • Try connecting the Link V2 to a different USB port or a different compatible device to rule out port issues.
  • Restart your mobile phone or computer.
• Sound Quality Issues:
  • Ensure you are using high-quality audio files to fully benefit from the DAC's capabilities.
  • Test with different headphones to determine if the issue is with the headphones or the Link V2.
• Limited Functionality (Calls/Video): The XDUOO Link V2 is primarily designed for improving music sound quality. Full functionality for answering phone calls or watching videos (e.g., microphone input, specific video controls) cannot be guaranteed through the device.

Specifications

Technical specifications for the XDUOO Link V2 DAC Headphone Amplifier:

Figure 4: XDUOO Link V2 Technical Parameters.

Warranty Information

This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and retailer. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation provided with your purchase or contact the retailer.

Customer Support

For technical assistance, troubleshooting, or general inquiries regarding your XDUOO Link V2, please contact the retailer where you purchased the product. You may also visit the official XDUOO or Fanmusic website for additional support resources, FAQs, and contact information.