1. Introduction
The PROZOR 192kHz Digital to Analog Audio Converter (DAC) is designed to convert digital optical (Toslink) or coaxial audio signals into analog stereo L/R RCA and 3.5mm headphone audio. This device supports decoding of Dolby AC-3 and DTS 5.1CH audio formats, providing a high-quality audio experience for various home entertainment systems. It features a built-in volume control for convenient adjustment of output levels.
2. Package Contents
- PROZOR 192kHz DAC Unit (Model: PRR016)
- USB Power Cable
- Optical Audio Cable
- User Manual

The image displays the complete package contents for the PROZOR 192kHz DAC. It includes the main DAC unit (Model PRR016), a user manual, a USB power cable, and an optical audio cable, providing everything needed for initial setup.
3. Product Features
- Converts optical (Toslink) or coaxial digital audio signals to analog L/R RCA and 3.5mm stereo audio.
- Supports 192kHz 24-bit sampling rate.
- Built-in Dolby AC-3 and DTS 5.1CH audio decoder.
- Integrated volume control knob for adjusting output levels.
- Gold-plated interfaces for enhanced signal transmission.
- Aluminum alloy casing for durability and heat dissipation.

An internal view of the PROZOR 192kHz DAC, illustrating its advanced audio chipset and circuit board designed for high-fidelity digital to analog audio conversion. This highlights the device's capability to support 192kHz 24-bit sampling rates and decode DTS/Dolby AC-3 5.1CH audio.
4. Product Diagram & Interfaces

This image displays the PROZOR 192kHz DAC from both the front and rear. The front panel features a volume control knob, a 3.5mm headphone jack, and L/R RCA stereo outputs. The rear panel includes a DC 5V power input, an optical input, and a coaxial input.
Front Panel:
- Volume Control Knob: Adjusts the output volume for both 3.5mm and RCA interfaces.
- 3.5mm Headphone Jack: Connects to headphones or other 3.5mm audio devices.
- RCA L/R Output: Connects to stereo amplifiers, receivers, or active speakers.
Rear Panel:
- DC 5V Power Input: Connects to the provided USB power cable and a 5V USB power adapter (not included).
- Optical Input (Toslink): Connects to digital audio sources via an optical cable.
- Coaxial Input: Connects to digital audio sources via a coaxial cable.
5. Setup Instructions
- Connect Power: Connect the provided USB power cable to the DC 5V input on the DAC. Plug the other end of the USB cable into a 5V USB power adapter (e.g., phone charger, TV USB port) and then into a power outlet. The Power LED on the DAC will illuminate.
- Connect Digital Audio Input: Choose either an optical (Toslink) cable or a coaxial cable to connect your digital audio source (e.g., TV, Blu-ray player, game console) to the corresponding input port on the DAC.
- Connect Analog Audio Output:
- For RCA output: Connect RCA L/R cables from the DAC's RCA output ports to your amplifier, receiver, or active speakers.
- For 3.5mm headphone output: Connect your headphones or a 3.5mm audio cable to the 3.5mm jack on the DAC.
- Configure Audio Source: Ensure your digital audio source (e.g., TV, media player) is set to output audio in PCM format for stereo output, or Dolby AC-3/DTS for decoding. If you experience no sound, verify the audio output settings on your source device.
- Adjust Volume: Turn the volume control knob on the DAC to your desired listening level.

This diagram illustrates typical connection scenarios for the PROZOR DAC. Digital audio sources such as TV boxes, Blu-ray players, game consoles, and HDTVs can connect to the DAC's optical or coaxial inputs. The DAC then outputs analog audio to RCA audio systems or 3.5mm headphones, powered via a 5V 1A adapter.

The PROZOR DAC is shown connected to a television and a speaker, illustrating its role in enhancing audio from various sources, including streaming platforms like YouTube, Netflix, and Amazon Prime. This setup requires no complex configuration.
6. Operating Instructions
Volume Control:
The PROZOR DAC features a dedicated volume control knob on the front panel. Rotate the knob clockwise to increase the volume and counter-clockwise to decrease it. This control affects both the 3.5mm headphone output and the L/R RCA stereo outputs simultaneously.

A detailed view of the volume control knob on the PROZOR 192kHz DAC. This knob allows users to conveniently adjust the audio output level for both the 3.5mm headphone jack and the L/R RCA interfaces.
Audio Format Support:
This DAC supports decoding of Dolby AC-3 and DTS 5.1CH digital audio signals. When these formats are detected, the DAC will process them and output stereo analog audio. For optimal performance, ensure your source device's audio output settings are correctly configured to either PCM (for standard stereo) or Bitstream/Raw (for Dolby AC-3/DTS decoding).
7. Maintenance
- Keep the device in a dry environment, away from moisture and direct sunlight.
- Clean the device with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Avoid blocking ventilation openings to prevent overheating.
- Do not attempt to disassemble or repair the device yourself. Refer to qualified personnel for service.
8. Troubleshooting
| Problem | Solution |
|---|---|
| No sound output. |
|
| Distorted or noisy audio. |
|
| DAC not decoding Dolby AC-3/DTS. |
|
9. Specifications
| Parameter | Value |
|---|---|
| Model Number | PRR016 |
| Brand | PROZOR |
| Input Interface | Optical (Toslink), Coaxial |
| Output Interface | L/R RCA, 3.5mm Jack |
| Sampling Rate | Up to 192kHz 24-bit |
| Audio Decoding Support | Dolby AC-3, DTS 5.1CH |
| Power Supply | DC 5V (Min 5V, Max 5V) |
| Operating Temperature | Up to 80°C |
| Dimensions (L x W x H) | 15.9 x 8.99 x 0.1 cm |
| Weight | 210 grams |
| Country of Origin | China |
10. Safety Information
- Do not expose this device to water or excessive humidity.
- Avoid placing the device near heat sources or in direct sunlight.
- Use only the specified power adapter (DC 5V).
- Keep out of reach of children.
- Disconnect power during lightning storms or when unused for long periods.
11. Contact and Support
For technical support or warranty inquiries, please contact PROZOR customer service through the retailer where the product was purchased. Please have your model number (PRR016) and purchase details ready.