SHANLING UA4 Portable USB DAC Headphone Amplifier User Manual

1. Introduction

The SHANLING UA4 is a portable USB Digital-to-Analog Converter (DAC) and headphone amplifier designed to enhance audio quality from various devices. It features a high-fidelity DAC chip, MQA support, and dual headphone outputs for versatile connectivity. This manual provides instructions for setup, operation, and maintenance of your UA4 device.

2. What's in the Box

• 1x SHANLING UA4 Portable USB DAC Headphone Amplifier
• (Additional cables or accessories may be included depending on the package variant.)

3. Key Features

• High-Fidelity DAC: Equipped with the Flagship ES9069Q HiFi DAC, supporting up to 768kHz/32bit and 256DSD with a Signal-to-Noise Ratio (SNR) of up to 120dB.
• MQA 16X Unfolding: Includes MQA decoding technology, enabling playback of MQA audio files and streams by a factor of 16X with compatible applications like Tidal.
• Compact Design with Display: Features a 0.87-inch OLED display and three hardware buttons for direct control over DAC settings without requiring additional apps.
• Dual Headphone Outputs: Provides standard 3.5mm single-ended and balanced 4.4mm outputs for compatibility with a wide range of headphones.
• Broad Compatibility: Compatible with Android, iOS, Windows, and Mac operating systems.
• Android App Control: Connects with the Eddict Player APP on Android devices for advanced control over volume, digital filters, gain, and sound channel balance.

Feature Visuals

Product Overview Video

MQA and Device Compatibility Video

4. Setup Guide

4.1 Connecting to Your Device

1. Identify Connection Port: The UA4 connects via USB-C. Ensure your source device (smartphone, tablet, computer) has a compatible USB-C port or an appropriate adapter.
2. Connect UA4: Use the provided USB-C to USB-C cable to connect the UA4 to your source device.
3. Connect Headphones: Plug your headphones into either the 3.5mm single-ended output or the 4.4mm balanced output on the UA4. Ensure the connection is secure.
4. Power On: The UA4 draws power directly from the connected source device and will power on automatically upon connection.

4.2 Driver Installation (Windows/Mac)

• Windows: For optimal performance and high-resolution audio playback, it is recommended to install the dedicated SHANLING USB DAC driver. This can typically be found on the official SHANLING website. Follow the on-screen instructions for installation.
• Mac: The UA4 is generally plug-and-play with Mac OS, requiring no additional drivers.

4.3 iOS Device Compatibility Note

When connecting to iOS devices, a special cable may be required for full compatibility and functionality. For example, the Shanling L3 cable is designed for this purpose. Standard USB-C to Lightning adapters may not provide full functionality.

5. Operating Instructions

5.1 Hardware Controls

The UA4 features a 0.87-inch OLED display and three hardware buttons for direct control:

• Volume Buttons: Use the dedicated volume buttons to adjust the output level.
• Multi-function Button: This button typically controls playback (play/pause) and can be used to navigate menus or change settings displayed on the OLED screen. Refer to the on-screen prompts for specific functions.

5.2 OLED Display Information

The OLED display shows important information such as:

• Current volume level.
• Active digital filter setting.
• Gain setting (High/Low).
• Audio format and sampling rate (e.g., PCM 48kHz, DSD512, MQA).

5.3 Android App Control (Eddict Player APP)

For Android users, the Eddict Player APP provides extended control over the UA4:

• Download: Download the Eddict Player APP from the Google Play Store.
• Connect: Connect your Android phone to the UA4.
• Adjust Settings: Within the app, you can adjust:
  • Volume
  • Digital Filter
  • Gain
  • Sound Channel Balance
  • Screen Orientation
  • Idle Time (for screen shutdown)
  • Button Function Settings (DAC Volume +/- or Volume adjustment +/-)
• Note: This function is only applicable to the Android platform due to iOS limitations.

6. Maintenance and Care

• Cleaning: Use a soft, dry cloth to clean the exterior of the UA4. 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: Avoid dropping the device or subjecting it to strong impacts.
• Water Resistance: The UA4 is not water-resistant. Avoid exposure to liquids.

7. Troubleshooting

• No Sound Output:
  • Ensure the UA4 is securely connected to both the source device and headphones.
  • Check the volume level on both the UA4 and your source device.
  • Verify that the correct audio output device is selected on your computer (if applicable).
  • For Windows, ensure the SHANLING USB DAC driver is installed correctly.
  • For iOS, confirm you are using a compatible cable (e.g., Shanling L3).
• Distorted Sound:
  • Reduce the volume level to prevent clipping.
  • Check the audio source file quality.
  • Ensure headphone impedance is within the recommended range for the UA4.
  • Try different digital filter settings via the Eddict Player app (Android) or hardware buttons.
• Display Not Working:
  • Ensure the device is properly connected and receiving power.
  • The display may enter idle mode; press any button to wake it up.
• MQA Playback Issues:
  • Ensure you are using an MQA-compatible streaming service (e.g., Tidal) and that MQA decoding is enabled in the application settings.
  • Verify the MQA file is authentic and not corrupted.

8. Technical Specifications

9. Warranty and Support

9.1 Product Warranty

SHANLING products typically come with a 1-year maintenance service. In the event of quality problems with the product within this period, replacements may be provided unconditionally.

9.2 Customer Service and Technical Support

For any technical consultation or after-sales service inquiries, please contact SHANLING customer support. Support is generally available 24 hours a day to assist with your questions.

For further information, please visit the official SHANLING website or refer to the product's detail page on the retailer's website.