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DENAFRIPS all-new USB DAC solution supports off-site firmware update. The update includes updating of the USB MCU firmware and the core DSP FPGA firmware. 


The procedures are as described in the following. It can be done in Windows 10 Operating System over the USB port by a computer savvy person. Should you need further assistance, please contact us.


Windows 10 enforces driver signatures by default. This can be disabled to install drivers that are not digitally signed. Use the following steps to disable driver signature enforcement.

  1. Click the Start Start menu and select Settings.

  2. Click Update and Security.

  3. Click on Recovery.

  4. Click Restart now under Advanced Startup.

  5. Click Troubleshoot.

  6. Click Advanced options.

  7. Click Startup Settings.

  8. Click on Restart.

On the Startup Settings screen press 7 or F7 to disable driver signature enforcement. 


Your computer will restart and you will be able to install non-digitally signed drivers. If you restart your computer again the driver signature enforcement will be re-enabled.


You would need the following items in order to proceed:

  1. A Windows 10 PC/Laptop with USB port

  2. Standard USB Cable

  3. Internet Connection (To download the driver and firmware packages)



Please click on the following links to download the necessary zip packages.

  1. ConfigProgramDriver

  2. Firmware Tool


Please note that flashing the incorrect firmware will brick the product. Please do not use any firmware obtain from unknown sources. 

  • FIFO Buffer & Reclocking Latency
    DENAFRIPS DDC/DAC uses Adaptive FIFO Buffer, and Reclocking. These techniques yield excellent jitter rejection, however, the variable latency is inevitable. The latency may have an effect to video/audio lip sync, commonly known as lip-sync. If you plan to use DDC/DAC mainly for gaming/video streaming, it may not be suitable. If you use the DDC/DAC purely for stereo music listening, it would work perfectly. Some TVs come with a feature to adjust the lip sync delay. Example: If the TV comes with such a setting, it will be a good mitigating option to correct the lip sync for TV/movies. If you use USB input directly to the DAC, the latency is minimal, and the lip sync should not appear on USB input.
  • Configuration Guide (Video)
    Ares II Pontus / Venus (New DSP) Terminator (New DSP) GAIA + Terminator Plus
  • Quick Start Guide
    ​Connect the AC Mains to the DAC​ power socket inlet Switch on the power. Once the AC supply is on, the DAC will be in Standby mode (Standby LED shall be on) Press on the Standby button once to turn on the DAC (Standby LED shall switch off) Select USB Input, the respective LED shall switch on Note: DENAFRIPS DAC USB input require the USB cable to carry +5V supply. The DAC uses the USB cable power supply as logical input to switch on the USB receiver chip via the internal Linear Power Supply. In the event of USB input is not selected, the USB receiver chip supply will be cut off to reduce possible interference of USB to the rest of the Input signals Boot up the computer, i.e. Laptop / Desktop / Streamer Connects the USB cable from the computer to the DAC Unzip the USB Driver Execute the driver installation, follow the on-screen instructions USB DAC shall be detected and driver installation will proceed automatically Select USB DAC as output source (vary depending on the software used, i.e. Roon, JRiver, JPlay, Foobar etc) Play your favorite music, and, Enjoy the music!​
  • MAC OS Setup
    A quick setup guide is published here:
  • Windows OS Setup
    A quick setup guide is published here:
  • USB2.0 Cable
    DENAFRIPS DAC USB receiver is powered by its internal regulated, low noise, low ripple, high speed linear power supply. However, it needs the USB cable to supply the +5vdc as a logic signal to trigger the internal power supply to the USB receiver. This design is intentional for best sound quality consideration. Please use a good quality USB2.0 Type A/B cable less than or equal to <= 6ft/2m length for best results.
  • I²S Connection
    I²S I²S has no industry standard. If you would like to use the I²S connection, the I²S pinout matching with the source (DDC/Transport/Streamer) and DAC has to be configured correctly. Mismatch of I²S pinout may result in static/noise output. The excessive noise output level may damage the loudspeakers/headphone drivers. Suggestion of I²S matching with the source, i.e. DDC/Transport/Streamer ​ 1. Connect the I²S cable (good quality HDMI cable <3ft/1m) 2. Turn down the volume (audible, minimal) 3. Play a familiar music (PCM first, followed by DSD) 4. Run through the I²S setting of the DAC, 000-111 5. One of the modes should match with the source for both PCM and DSD playback. ​ It's recommended to go through the Audio Tone Test to make sure the L/R channel, in phase/out of phase correctness. Warning Please note that the RJ45/HDMI ports of DENAFRIPS DDC/DAC are not typical network/multimedia RJ45/HDMI ports. They are purpose-built I²S ports. Please do not connect it to the typical multimedia HDMI port (i.e. Bluray player/TV etc) / Ethernet network. Need help? Please reach out to us at . We are happy to assist you.
  • Factory Burn-In
    All DENAFRIPS DACs are factory burn-in for at least 100 hours with comprehensive Audio Precision Tests, QAQC tests performed prior packing & shipment.
  • 36 Months Warranty, Peace of Mind
    Comprehensive Warranty Coverage Peace of mind Warranty! While each component is measured and verified to be in perfect working condition before shipping to your home, sometimes things still go wrong. Which is why we offer our Peace of Mind warranty that covers any manufacturing defect for three years after the product arrives to your door. The balance of the warranty is also transferable from the original owner to the second owner. Please contact us at with the new owners information and serial number for this coverage to be applied. Note: Tampering with the product will void the warranty. All DENAFRIPS products purchased from the Authorized Distributor are covered under this policy. Customer shall bear the import duties and taxes whenever applicable. Refer to Authorized Distributor warranty terms.
  • Transferable Warranty
    Warranty of DENAFRIPS DAC purchased from the Authorized Distributor is transferable. The balance of the warranty is transferable from the original owner to the second owner. We need the original owner to initiate the warranty transfer to validate the warranty transfer. Please contact us at with the new owners information and serial number for this coverage to be applied.


STEP 1: Plug in the USB cable from the Windows PC to the DAC USB input port.

STEP 2: Power up the DAC. Turn in on by pressing the STANDBY button once. Select the USB input. The USB DAC should be detected (if the driver is already installed in the Windows PC). 


STEP 3: Enable the DDC/DAC into firmware update mode.




Press the STANDBY button once, turn the DAC into STANDBY mode. Press the following button once:

  • Ares II - Phase Button

  • Pontus/Venus/Terminator/Terminator Plus - Mode Button



  • Iris DDC: YouTube Video Guide

  • Hermes / Gaia DDC: Press Setup button once, thereafter, press USB button twice

This will enable the DDC/DAC into Firmware Update mode.

The Windows computer shall detect the USB HiRes F-20 Configuration device in Device Manager

Unknown Driver.png

STEP 4: Install the Configuration Driver. You've downloaded it previously in DOWNLOAD section above. Click on the Setup (Windows Batch File) to install the driver. Click Next on the Installation Wizard, follow the on-screen instruction to complete the installation. 

Important Note: Windows Signed Driver Enforcement must be disabled to successfully install the Configuration Driver. Failure to install the driver will not be able to proceed with the firmware update.  

Install Driver.JPG
Install Driver 2.JPG

STEP 5: Once the Configuration Driver is installed successfully, the libusb-win32 device -> USB HiRes Audio F-20 Configuration shall be detected by the Windows PC without any (?) or (!) mark. This signify that the Configuration Driver is installed successfully.

Libusb-win32 Driver.png

STEP 6: Locate the Firmware Tool zip folder. You've downloaded it previously in DOWNLOAD section above. Unzip it. You should see the following files in the folder. 

Update Setup.JPG

STEP 7: Click on the Update MCU & FPGA (Windows Batch File) to start flashing the USB MCU and FPGA firmware. The following Command Prompt windows pop-up to details the Flashing Progress. It may take up to 5 minutes to flash the firmware.


STEP 8: Once the firmware is flashed successfully, press any key to close the Command Prompt. Power off the DAC completely by turning off the power supply or unplug the power cord. Wait for 2 minutes, power on the DAC. Select USB. The DENAFRIPS USB DAC should be detected. Play some test tones to make sure the DAC is operational. 


Congratulation! You've successfully updated the USB MCU and DSP FPGA firmware! Enjoy the music!




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