---
product_id: 243975841
title: "Douk Audio U2 PRO"
brand: "douk audio"
price: "₩187264"
currency: KRW
in_stock: null
reviews_count: 8
url: https://www.desertcart.kr/products/243975841-douk-audio-u2-pro
store_origin: KR
region: South Korea
---

# Dual power input: USB & external 5V DC Supports PCM up to 384kHz & DSD256 XMOS XU208 chip, 1000MIPS power Douk Audio U2 PRO

**Brand:** douk audio
**Price:** ₩187264
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Unlock your DAC’s true potential with precision digital clarity!

## Quick Answers

- **What is this?** Douk Audio U2 PRO by douk audio
- **How much does it cost?** ₩187264 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/243975841-douk-audio-u2-pro)

## Best For

- douk audio enthusiasts

## Why This Product

- Trusted douk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-res audio support:** Native PCM up to 384kHz and DSD256 DOP decoding for next-level sonic detail.
- • **Portable power flexibility:** Powered via USB or external 5V DC input—perfect for desktop setups or on-the-go HiFi listening.
- • **Premium build & components:** Crafted with gold-plated connectors, OS-CON capacitors, and aluminum alloy casing for durability and signal integrity.
- • **Versatile multi-output interface:** Simultaneously outputs via TOSLINK optical, coaxial, and HDMI IIS for seamless DAC/preamp integration.
- • **Audiophile-grade digital reclocking:** Experience crystal-clear sound with ultra-low jitter and noise floor control.

## Overview

The Douk Audio U2 PRO is a compact, high-performance USB to digital audio interface featuring the advanced XMOS XU208 chip with 1000MIPS processing power. It supports simultaneous coaxial, optical, and HDMI IIS outputs, delivering pristine PCM up to 384kHz and DSD256 audio formats. Built with premium components and flexible power options, it elevates any DAC, preamp, or amplifier setup by reducing jitter and enhancing soundstage detail—making it a must-have for discerning audiophiles and professionals seeking superior digital audio fidelity.

## Description

Douk Audio U2 PRO XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD256: desertcart.com: Industrial & Scientific

Review: Surprisingly effective digital reclocker - I have a respectable, audiophile grade stereo system based in large part on the mighty LAIV Harmony DAC. I became aware of digital reclockers via various YouTube videos. To be frank, I wasn't expecting much of reclockers in general and the Douk in particular given its price. I was wrong. The Douk made an instantly noticeable improvement to sound quality in several ways once I connected it between my audio PC and the Harmony. I used USB from my PC to the Douk, and IS2 from the Douk to the Harmony DAC. The most notable improvement was in increased transparency and detail (the Harmony is no slouch in these areas on its own). I also heard deeper, fuller, tighter bass combined with a fuller, more detailed treble. I highly recommend this reclocker or the similar SMSL PO-100 device for high performance audio systems using digital sources if you're on a budget.
Review: This device is the truth. Does precisely what it's advertised to do. - Basically, the understanding of our hearing is not really well understood, certainly not in the context of sound reproduction. Our ears are INCREDIBLY sensitive to timing and distortion (of any kind not just amplifier THD). With that said, keeping tight control of the timing and noise floor for the signal is key right up until the actual conversion. This little device here? While it only goes up to DSD256, it most certainly cleans up the signal and allows my DAC to really shine. Using the I2s output, things went from fantastic to HOLY SH1T. The mix becomes clearer and more defined, bass suddenly appears from the depths (of your speaker's capabilities, my in-room response is 18-20khz), imaging and soundstage coherence and spaciousness is increased. Now this is with and without HQPlayer in the mix. So, in general there is great improvement to be had especially IF YOUR DAC HAS A POOR USB IMPLEMENTATION. I tried this with my Topping DX7 Pro with class A op-amps (can't remember the damn name of the manufacturer) and my PS Audio Gaincell DAC. I can't say I notice any loud pops or clicks during rate changes. By the way, powering this thing with a battery pack makes things sound even better. Simply more of what I described above. Also of note, I run my amps, pre, and dac through a PS Audo P3 Power Regenerator, which absolutely makes a difference. If the system and environment is quiet, some of the more subtle improvements can be heard very distinctly (use of this thing in the first place, using a battery to power it). Bonus, go try out HQPlayer if you haven't already and see what properly filtered audio sounds like. If you have an existing PC with recent-ish tech (RTX accelerator a plus), you can improve the sound of your music collection immensely by running it through HQPlayer. You'll get more out of that with this device between your streamer and DAC. (then of course, go fix your room accoustics)... :)

## Features

- With USB (type-B) input and TOSLINK optical / coaxial /HDMI 12S output(can output at the same time), can work well with DAC, preamp, amplifier or speaker. Adopting XMOS XU208 chip solution, with 1000MIPS random access memory much higher than U8 (500MIPS), and more stable than Italian Amanero solution and coaxial output supports DSD DOP.
- Output interface with DSD ON function can match the decoder that needs DSD ON signal to decode DSD songs, supporting 44.1K-384KHz/16-32 Bit sampling rate and DOP DSD256 at highest, better signal process brings higher sound quality.
- High-quality components are used to ensure better performance, such as ultra-low noise LDO regulated power supply, LVDS differential chip, gold-plated coaxial interface, OS-CON solid capacitors and Panasonic FC filtering and decoupling capacitors, the contact internal resistance is smaller and the data transmission is more reliable.
- USB interface can be used as signal input and power input at the same time, and with external DC 5V input (with priority) that can be powered by phone charger or power bank, easy to enjoy HiFi music any time and any where.
- Mini size with exquisite design, with PCM and DSD indicator easy to show the output format, black aluminum alloy cases look more cool and fashionable, very suitable for desktop audio device to use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HN3VSF8 |
| Best Sellers Rank | #288,410 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #354 in Signal Converters |
| Brand | Douk Audio |
| Brand Name | Douk Audio |
| Customer Reviews | 4.2 out of 5 stars 136 Reviews |
| Interface | Coaxial, HDMI, USB |
| Interface Type | Coaxial, HDMI, USB |
| Item Dimensions L x W | 3.5"L x 2.91"W |
| Manufacturer | Douk Audio |
| Material Type | Copper |
| Maximum Supply Voltage | 5.25 Volts |
| Minimum Supply Voltage | 5 Volts (DC) |
| Mounting Type | Coaxial,Plug Mount |
| Number of Channels | 2 |
| Number of Pins | 4 |

## Product Details

- **Brand:** Douk Audio
- **Maximum Supply Voltage:** 5.25 Volts
- **Minimum Supply Voltage:** 5 Volts (DC)
- **Mounting Type:** Coaxial,Plug Mount
- **Number of Pins:** 4

## Images

![Douk Audio U2 PRO - Image 1](https://m.media-amazon.com/images/I/61KhwNljuoL.jpg)
![Douk Audio U2 PRO - Image 2](https://m.media-amazon.com/images/I/71ZBwolzFwL.jpg)
![Douk Audio U2 PRO - Image 3](https://m.media-amazon.com/images/I/61w8kB7CPdL.jpg)
![Douk Audio U2 PRO - Image 4](https://m.media-amazon.com/images/I/716wtiVhjYL.jpg)
![Douk Audio U2 PRO - Image 5](https://m.media-amazon.com/images/I/71tQzbUWAoL.jpg)

## Questions & Answers

**Q: Where can I purchase the 5V 2A power supply for this unit, and which one would owners recommend?**
A: If you require a compact/portable power supply for the USB interface, you can use a 5V rechargeable power bank such as this connected via the USB power cable included with the USB interface: https://www.amazon.com/gp/product/B07YBTYX9D/ref=ox_sc_act_title_1?smid=A2XWJAAZM0RYQD&psc=1

**Q: What is the I2s pinout configuration on this?**
A: Hello. Please refer to our last product image. It shows clearly.

**Q: does it support multichannel pcm/asio/dsd?**
A: Hello. It can accept multi-channel input but can only output 2-channel.

**Q: Does the douk u2 audio pro output 384k on spdif if the usb input is 384k? the douk site is vague, but does seem to say that spdif out limit is 192k**
A: Hello. Only the I2S output supports all sampling rate while S/PDIF supports 192KHz and DOP DSD64 at highest

## Customer Reviews

### ⭐⭐⭐⭐⭐ Surprisingly effective digital reclocker
*by E***. on March 7, 2025*

I have a respectable, audiophile grade stereo system based in large part on the mighty LAIV Harmony DAC. I became aware of digital reclockers via various YouTube videos. To be frank, I wasn't expecting much of reclockers in general and the Douk in particular given its price. I was wrong. The Douk made an instantly noticeable improvement to sound quality in several ways once I connected it between my audio PC and the Harmony. I used USB from my PC to the Douk, and IS2 from the Douk to the Harmony DAC. The most notable improvement was in increased transparency and detail (the Harmony is no slouch in these areas on its own). I also heard deeper, fuller, tighter bass combined with a fuller, more detailed treble. I highly recommend this reclocker or the similar SMSL PO-100 device for high performance audio systems using digital sources if you're on a budget.

### ⭐⭐⭐⭐⭐ This device is the truth. Does precisely what it's advertised to do.
*by T***T on July 22, 2022*

Basically, the understanding of our hearing is not really well understood, certainly not in the context of sound reproduction. Our ears are INCREDIBLY sensitive to timing and distortion (of any kind not just amplifier THD). With that said, keeping tight control of the timing and noise floor for the signal is key right up until the actual conversion. This little device here? While it only goes up to DSD256, it most certainly cleans up the signal and allows my DAC to really shine. Using the I2s output, things went from fantastic to HOLY SH1T. The mix becomes clearer and more defined, bass suddenly appears from the depths (of your speaker's capabilities, my in-room response is 18-20khz), imaging and soundstage coherence and spaciousness is increased. Now this is with and without HQPlayer in the mix. So, in general there is great improvement to be had especially IF YOUR DAC HAS A POOR USB IMPLEMENTATION. I tried this with my Topping DX7 Pro with class A op-amps (can't remember the damn name of the manufacturer) and my PS Audio Gaincell DAC. I can't say I notice any loud pops or clicks during rate changes. By the way, powering this thing with a battery pack makes things sound even better. Simply more of what I described above. Also of note, I run my amps, pre, and dac through a PS Audo P3 Power Regenerator, which absolutely makes a difference. If the system and environment is quiet, some of the more subtle improvements can be heard very distinctly (use of this thing in the first place, using a battery to power it). Bonus, go try out HQPlayer if you haven't already and see what properly filtered audio sounds like. If you have an existing PC with recent-ish tech (RTX accelerator a plus), you can improve the sound of your music collection immensely by running it through HQPlayer. You'll get more out of that with this device between your streamer and DAC. (then of course, go fix your room accoustics)... :)

### ⭐⭐⭐⭐ Sounds pretty damn good
*by B***K on March 30, 2024*

I keep almost buying a dedicated streamer like the Cambridge CXN but then wonder if I can get similar results cheaper and more modular so when they come out with a new CX whatever next year with a much finer DAC I won’t be pouting about it. Anyway so far so good at first I tried their small DSD which worked ok but seemed kind of flaky and would just stop playing after hours and would need reset (unplugged and back in) still sounded good. Upgraded to this unit with a good USB C to USB B cable and an amazing wireworld coax audio to my NAD DAC / amp it sounds great and no issues with it just stopping at all. Source is M2 MacBook Pro running Qobuz and Tidal. I would definitely recommend it and although I do believe in cable and component burn in I can’t honestly be sure if this box itself has gotten better or the upgrade to the wireworld Coax but it really does sound incrementally better all the time.

## Frequently Bought Together

- Douk Audio U2 PRO XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical/HDMI IIS Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD256
- TOSLINK cable, optical audio cable – 1.64 feet short fiber optic cable for soundbars (TOSLINK to TOSLINK, digital S/PDIF cable, stereo systems/amplifiers/amps, home cinema, Xbox One/PS5) – CableDirect

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-03*