LiNKFOR USB DAC Audio Converter (Model DAC070) Instruction Manual

1. Introduction

The LiNKFOR USB DAC Audio Converter (Model DAC070) is designed to convert audio signals from a computer or game console's USB port into various audio output formats. This device functions as an external sound card, providing digital optical (SPDIF), coaxial, analog stereo RCA L/R, and 3.5mm headphone jack outputs.

It is compatible with Windows, Mac, PS3, PS4, and PS5 systems, allowing connection to soundbars, 2.0 channel speakers, and headphones.

Image 1.1: LiNKFOR USB DAC Audio Converter and included USB cable.

2. Package Contents

Verify that all items are present in the package:

• 1x LiNKFOR USB DAC Audio Converter (Model DAC070)
• 1x 1.5m USB Data Cable
• 1x User Manual

Image 2.1: Contents of the product package.

3. Product Overview

Familiarize yourself with the input and output ports of the USB DAC Audio Converter:

Image 3.1: Front and rear panel connections of the USB DAC Audio Converter.

• USB IN: Connects to your computer or game console for audio input and power.
• Power Indicator: A red LED light indicating the device is powered on.
• Optical OUT (Toslink): Digital audio output for connecting to soundbars or optical headphones.
• Coaxial OUT: Digital audio output for connecting to compatible audio receivers.
• RCA L/R OUT: Analog stereo audio output for connecting to 2.0 channel speakers or amplifiers.
• Headphone Jack (3.5mm): Analog audio output for connecting headphones.

4. Setup and Connection

The LiNKFOR USB DAC Audio Converter is designed for plug-and-play operation, requiring no additional drivers for most mainstream operating systems. Follow these steps to set up your device:

4.1. General Connection Diagram

Image 4.1: Connection diagram for various devices.

1. Connect the provided USB data cable to the USB IN port on the converter.
2. Connect the other end of the USB data cable to an available USB port on your computer (PC/Mac) or game console (PS3/PS4/PS5). The device draws power from the USB port.
3. Choose your desired audio output:
   • For digital audio: Connect an optical (Toslink) cable to the Optical OUT port or a coaxial cable to the Coaxial OUT port, then connect the other end to your soundbar or audio receiver.
   • For analog audio: Connect RCA L/R cables to the RCA L/R OUT ports for 2.0 channel speakers, or plug 3.5mm headphones into the Headphone Jack.

4.2. System Audio Settings

After connecting the hardware, you may need to adjust your operating system's audio settings to select the LiNKFOR USB DAC as the default audio output device. Additionally, for digital optical or coaxial output, ensure the audio format is set to PCM or LPCM, as 5.1 channel audio is not supported by this converter.

Image 4.2: Adjusting audio settings in Mac and Windows.

4.2.1. Windows System Setting

1. Open Computer Settings.
2. Navigate to Sound.
3. Select the Playback tab.
4. Locate and select "Media USB Headphone Set" or a similar entry for the USB DAC.
5. Click Set Default.

4.2.2. Mac System Setting

1. Open System Preferences.
2. Click on Sound.
3. Select the Output tab.
4. Choose "C-Media USB Headphone Set" or a similar entry for the USB DAC.

5. Operating Instructions

Once the converter is connected and configured, it will automatically process audio signals from your source device. The red power indicator LED on the unit will illuminate when it receives power via the USB connection.

• Ensure your connected audio output device (speakers, headphones, soundbar) is powered on and set to the correct input source.
• Adjust volume levels using your source device (computer/console) or the connected audio output device. The USB DAC itself does not have volume controls.

6. Maintenance

To ensure the longevity and optimal performance of your LiNKFOR USB DAC Audio Converter, follow these maintenance guidelines:

• Keep the device in a dry environment, away from moisture and direct sunlight.
• Clean the exterior with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials.
• Do not expose the device to extreme temperatures.
• Avoid dropping or subjecting the device to strong impacts.

7. Troubleshooting

If you encounter issues with your USB DAC Audio Converter, refer to the following common solutions:

• No Sound Output:
  • Verify that the USB cable is securely connected to both the converter and the source device.
  • Check if the power indicator LED on the converter is illuminated. If not, try a different USB port or cable.
  • Ensure the correct audio output device (e.g., "Media USB Headphone Set" or "C-Media USB Headphone Set") is selected in your computer's or console's sound settings.
  • Confirm that your connected speakers or headphones are powered on and their volume is adjusted appropriately.
• Distorted or Incorrect Audio (Digital Output):
  • This converter does not support 5.1 channel audio. Ensure your source device's audio output is set to PCM or LPCM format when using optical or coaxial outputs.
  • Check the optical or coaxial cable for damage and ensure it is securely connected.
• Compatibility with Windows 11: While the product is generally compatible with mainstream operating systems, some users have reported issues with Windows 11. Ensure your system drivers are up to date and verify compatibility with your specific Windows 11 configuration.

8. Specifications

Detailed technical specifications for the LiNKFOR USB DAC Audio Converter (Model DAC070):

Image 8.1: Physical dimensions of the USB DAC Audio Converter.

9. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your purchase or contact LiNKFOR customer service directly. Specific warranty terms may vary by region and retailer.