iFi GO Link - Portable DAC & Headphone Amplifier User Manual

1. Product Overview

The iFi GO Link is a compact and portable Digital-to-Analog Converter (DAC) and headphone amplifier designed to significantly enhance the audio quality from various devices. It connects via USB-C and features a gold-plated 3.5mm headphone socket, supporting high-resolution audio formats including 32-bit/384kHz PCM, DSD256, and MQA. Its primary function is to bypass the often inferior built-in audio circuitry of smartphones, tablets, and computers, delivering a cleaner, more detailed, and powerful sound experience to your headphones.

Image 1.1: The iFi GO Link, a compact device designed to improve audio quality.

2. What's in the Box

Upon opening your iFi GO Link package, please ensure all the following components are present:

• iFi GO Link unit
• USB-A to USB-C adapter
• Lightning to USB-C adapter (for compatible Apple devices)

3. Product Features

The iFi GO Link incorporates advanced technology to deliver superior audio performance:

• High-Performance DAC Chip: Features the ES9219 Sabre DAC chip with Quad DAC+ technology, ensuring precise digital-to-analog conversion.
• Advanced Clocking: Utilizes 32-bit HyperStream III DAC architecture and Time Domain Jitter Eliminator for ultra-low distortion and noise.
• Hi-Res Audio Support: Supports audio playback up to 32-bit/384kHz PCM, DSD256, and full MQA decoding, allowing you to experience music as the artist intended.
• Premium Connectivity: Equipped with a gold-plated 3.5mm headphone socket for optimal signal transfer and durability.
• High-Purity Cable: The integrated cable features silver-plated copper conductors, twisted for high signal purity and minimal interference.
• Compact and Portable: Designed for on-the-go use, easily fitting into a pocket or bag.

Image 3.1: The iFi GO Link displaying its MQA compatibility indicator.

4. Setup Guide

Follow these steps to set up your iFi GO Link:

1. Identify Your Device's Port: Determine if your source device (smartphone, tablet, laptop, computer) has a USB-C port.
   • If your device has a USB-C port, you can directly connect the iFi GO Link.
   • If your device has a standard USB-A port, use the included USB-A to USB-C adapter.
   • If your device is an Apple product with a Lightning port, use the included Lightning to USB-C adapter.
2. Connect the GO Link: Plug the USB-C connector of the iFi GO Link into the appropriate port on your source device. If using an adapter, connect the adapter to your device first, then plug the GO Link into the adapter.
3. Connect Your Headphones: Insert the 3.5mm jack of your headphones into the gold-plated 3.5mm headphone socket on the iFi GO Link. Ensure it is fully inserted for proper connection.
4. Verify Connection: The iFi GO Link features an LED indicator that changes color to show the audio format being played. A green light indicates standard resolution, while other colors (e.g., yellow for MQA, magenta for DSD) indicate higher resolutions.

Image 4.1: The iFi GO Link connected to a laptop, ready for use with headphones.

Image 4.2: Connection diagram and physical dimensions of the iFi GO Link.

5. Operating Instructions

Once connected, the iFi GO Link operates automatically. It draws power directly from your source device and does not require separate charging.

• Volume Control: Volume is controlled directly from your source device (phone, laptop, etc.). Adjust the volume to a comfortable listening level before playing audio.
• Audio Playback: Begin playing audio from your preferred music player, streaming service, or media application. The iFi GO Link will process the digital audio signal and output it through your connected headphones.
• LED Indicator: Observe the LED indicator on the GO Link.
  • Green: PCM 44.1/48/88.2/96kHz, MQA
  • Yellow: PCM 176.4/192/352.8/384kHz
  • Magenta: DSD64/128/256
  This indicator helps confirm that your high-resolution audio files are being correctly processed.

6. Maintenance and Care

To ensure the longevity and optimal performance of your iFi GO Link, please follow these maintenance guidelines:

• Cleaning: Use a soft, dry, lint-free cloth to clean the exterior of the device. Avoid using liquid cleaners, aerosols, or abrasive materials.
• Storage: When not in use, store the GO Link in a cool, dry place, away from direct sunlight and extreme temperatures.
• Handling: Handle the device with care. Avoid bending or twisting the cable excessively, as this may damage the internal conductors. Do not drop the device.
• Moisture: Keep the GO Link away from water and high humidity. Exposure to moisture can cause internal damage.

7. Troubleshooting

If you encounter issues with your iFi GO Link, refer to the following common problems and solutions:

If the problem persists after trying these solutions, please contact iFi customer support for further assistance.

8. Technical Specifications

9. Warranty and Support

iFi products are designed for reliability and performance. For information regarding your product's warranty, please refer to the warranty card included in your product packaging or visit the official iFi website. The warranty typically covers manufacturing defects for a specified period from the date of purchase.

For technical support, troubleshooting assistance beyond this manual, or warranty claims, please contact iFi customer support through their official channels. You may find contact information on the iFi website or within your product documentation.

Online Resources:

• Visit the iFi Store on Amazon
• Refer to the official iFi website for the latest drivers, firmware updates, and support FAQs.