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: https://www.sony.com/electronics/support/articles/00026069 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.

• Ares II

• Pontus / Venus (New DSP)

• Terminator (New DSP)

• GAIA + Terminator Plus

• ​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!​

A quick setup guide is published here:

https://www.denafrips.com/mac-os

A quick setup guide is published here:

https://www.denafrips.com/win-os

https://www.denafrips.com/audirvana-studio

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

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 support@denafrips.com . We are happy to assist you.

All DENAFRIPS DACs are factory burn-in for at least 100 hours with comprehensive Audio Precision Tests, QAQC tests performed prior packing & shipment.

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 support@denafrips.com with the new owners information and serial number for this coverage to be applied.

For environmental protection and to facilitate long-term preservation by customers, we provide electronic user manuals on our website for download.

Mid-to-high-end products are not supplied with a power cable. Our products pursue ultimate cost-performance, and the selling price does not include a power cable. The equipment requires a professional power cable, which customers may purchase according to their actual needs.

The DAC and power amplifier are not equipped with a remote control; which customers may purchase as needed.

· The Y3 remote control is compatible with AREA15TH, PONTUS15TH, 15th Anniversary Series DAC-preamps and power amplifiers.

· The Y1 remote control is compatible with the AVATAR CD player.

Noise Identification:

A humming sound is usually caused by a ground loop. A hissing sound is mostly background noise. Crackling noise is often due to poor contact or digital signal jitter.

Power Supply Check:

Connect all equipment to the same high-quality power strip to eliminate ground potential differences between devices. Check for interference from high-power electrical appliances.

Cable Check:

Check if signal cables have poor contact, looseness, or oxidation. Wiggle the cables to see if the noise changes. Reconnect and tighten the connectors, or replace them with high-quality cables to test if the noise disappears.

When using an I2S connection cable, adjust the pin configuration to find the mode with the best sound quality.

Electromagnetic Interference Check:

Audio cables and power cables must not be routed parallel or twisted together. Maintain a distance or cross them at right angles to reduce electromagnetic coupling interference. Keep all equipment away from electronic devices such as mobile phones and routers to eliminate radio frequency interference.

Source Substitution:

Replace the audio source (e.g., CD player, computer) to troubleshoot noise generated by the source itself.

Speaker Check:

Confirm that the speaker drivers are in normal condition and not damaged.

Volume Judgment:

If the noise increases with volume, the fault lies in the preamplifier or preceding stages.If the noise level remains constant, the fault is in the power amplifier, speakers, or power supply.

1. Replace the audio source to rule out distortion caused by degradation of the source file itself.

2. Ensure the sample rate and format of the input signal match those supported by the device.

3. Adjust the DAC filter and DAC settings to select the appropriate sound quality mode.

4. Confirm that the speakers are in normal condition and not damaged.

5. Reconnect all audio cables and power cables, clean the connectors to eliminate distortion caused by poor contact.Check the speaker wiring to eliminate sound field distortion caused by reversed phase.

6. Lower the preamplifier volume to avoid clipping distortion due to signal overload.

7. Ensure the amplifier power is 1.5–2 times that of the speakers and that the impedance is matched, to prevent distortion caused by insufficient driving force or overload.

8. Audio cables and power cables must not be routed parallel or twisted together. Keep them away from routers and mobile phones, and avoid overheating to eliminate distortion caused by electromagnetic interference.

9. Connect all equipment to the same high-quality power strip to eliminate ground potential differences between devices. Check for interference from high-power electrical appliances to avoid dynamic compression distortion caused by power supply ripple.

1. Check that all input and output cables are connected properly.

2. Check the volume settings of the audio source, ensure it is not muted and the volume level is appropriate.

3. Replace the data cable or cord to ensure it is not damaged.

4. Ensure the input source matches the selection on the front panel.

5. Ensure the unit is not in "MUTE" mode.

If the problem persists, try the following steps:

1. Disconnect all cables from the DAC.

2. Pause for 10 seconds.

3. Reconnect the power cable.

4. Allow the relay to activate and power up the DAC. Observe the standby LED.

5. Press the standby button once to turn on the DAC.

6. Select the USB input and confirm that the USB LED lights up.

7. Connect your Mac/Windows computer to the DAC using a USB cable.

8. Does the sample rate indicator light up?

9. Is the USB DAC detected in the sound device settings of your Mac/Windows system?

10. Select the USB DAC as the output device.

11. Play music.

Firmware updates are not intended to improve sound quality. Their primary purpose is to fix bugs that may occur under certain circumstances. If your device is operating normally and the sound quality meets your expectations, we do not recommend performing a firmware update.