PROZOR 192KHz Digital to Analog Audio Converter (Model FBA_4330141664) Instruction Manual

1. Introduction

The PROZOR 192KHz Digital to Analog Audio Converter is designed to convert digital PCM audio signals from coaxial or Toslink inputs into analog L/R RCA and 3.5mm jack audio outputs simultaneously. This device allows you to connect modern digital audio sources to older analog audio systems, enhancing your listening experience with clear, high-fidelity sound.

Key features include a built-in volume control knob for precise output adjustment, support for a 192kHz 24-bit sampling rate, and an aluminum alloy casing for durability and heat resistance. The gold-plated input and output interfaces minimize signal transmission loss.

2. Package Contents

Please verify that all items are present in your package:

• PROZOR 192KHz DAC Digital to Analog Audio Converter Unit
• Optical Cable (1m / 3ft)
• USB Power Cable (5.5mm)
• User Manual

Figure 2.1: Package contents including the converter, optical cable, USB power cable, and user manual.

3. Product Overview

Familiarize yourself with the various components and ports of your PROZOR DAC converter.

Figure 3.1: The PROZOR 192KHz DAC converter unit shown with its optical and USB power cables.

Figure 3.2: Detailed view of the converter's front panel (volume knob, 3.5mm jack, RCA L/R outputs) and rear panel (DC 5V power, Optical input, Coaxial input).

Figure 3.3: Dimensions of the PROZOR 192KHz DAC Converter: 7.0cm (2.75in) length, 6.1cm (2.40in) width, 1.5cm (0.59in) height.

4. Setup and Connection

Follow these steps to correctly set up your PROZOR 192KHz DAC converter:

1. Power Connection: Connect the provided USB power cable to the DC 5V input port on the converter. Plug the other end of the USB cable into a 5V 1A USB power adapter (not included) or a USB port on your TV/device.
   

   Figure 4.1: Connect the USB power cable to the converter. Ensure a stable 5V 1A power supply.

2. Digital Audio Input: Connect your digital audio source (e.g., TV, Blu-ray player, game console) to the converter using either an Optical (Toslink) cable or a Coaxial cable.
   • For Optical connection, insert the optical cable into the "Optical In" port on the converter and the optical output port on your source device.
   • For Coaxial connection, insert the coaxial cable into the "Coaxial In" port on the converter and the coaxial output port on your source device.
   

   Figure 4.2: The converter can receive digital audio from devices like TV boxes, Blu-ray players, game consoles, and HDTVs.

3. Analog Audio Output: Connect your analog audio receiving device (e.g., amplifier, headphones, speakers) to the converter.
   • For RCA output, connect RCA L/R cables from the "R-Out" and "L-Out" ports on the converter to your amplifier or active speakers.
   • For 3.5mm jack output, connect headphones or a 3.5mm audio cable to the headphone jack on the converter.
4. TV Audio Output Settings (Crucial): The converter supports PCM/LPCM 2.0 channel audio. It does not support 5.1CH, Dolby, or DTS formats. You MUST set your TV's digital audio output to PCM/LPCM.
   

   Figure 4.3: Ensure your TV audio output is set to PCM/LPCM for proper functionality.

   Typical PCM setting path (may vary by TV model):

   • Menu → Settings → Sound → Expert Settings → Audio Format → PCM
   • Menu → All Settings → Sound → Sound Out → Optical → Digital Sound Out → PCM
   

   Figure 4.4: Visual guide for setting TV audio output to PCM format.

5. Operating Instructions

Once all connections are made and your TV audio output is correctly configured to PCM, the converter is ready for use.

• Volume Adjustment: Use the volume control knob on the front of the converter to adjust the output volume for both the 3.5mm headphone jack and the L/R RCA outputs simultaneously. Rotate clockwise to increase volume (V+) and counter-clockwise to decrease volume (V-).
  

  Figure 5.1: The volume knob allows precise control over the audio output level.
• Simultaneous Output: The converter provides simultaneous audio output through both the L/R RCA ports and the 3.5mm headphone jack. This allows you to connect multiple audio devices if needed.
• Automatic Mute: The device features a 24-bit SPDIF incoming bit stream on L/R channels to eliminate noise when no signal input is present, and it automatically mutes during non-audio input signals.

6. Troubleshooting

• No Audio Output:
  • Ensure all cables are securely connected to their respective ports.
  • Verify that the power cable is connected and the converter is receiving power (check for any indicator lights).
  • Crucially, check your TV's audio output settings. It MUST be set to PCM/LPCM. Refer to Section 4, Step 4 for detailed instructions.
  • Confirm that your audio receiving device (amplifier, headphones) is powered on and set to the correct input.
• Humming or Noise:
  • Ensure the power supply is stable (5V 1A). Avoid using power adapters that do not meet this specification.
  • If powering via a USB port on a computer or TV, try a different USB port, especially a USB 3.0 port if available, as some USB 2.0 ports may introduce noise.
  • Check for loose connections or damaged cables.
  • The aluminum casing and magnetic ring power cord are designed to reduce interference, but external electrical interference can still occur. Try relocating the converter away from other electronic devices.
• Left/Right Channels Reversed (Rare):
  • If you experience reversed left and right audio channels, ensure your RCA cables are connected correctly (red to R, white to L). If the issue persists, you may need to reverse the L/R connections at your receiving device or headphones as a workaround.

7. Specifications

8. Product Videos

Watch these official product videos for visual guidance on setup and functionality.

9. Warranty and Support

For detailed warranty information, technical support, or service inquiries, please refer to the official PROZOR product documentation included in your package or visit the PROZOR official website. Keep your purchase receipt for warranty claims.