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Nobosund & Douk AudioDoukAudio
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Douk Audio U2 XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD64 (Upgrade Version)
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Purchase options and add-ons
Brand | Douk Audio |
Mounting type | Cable Mount |
Number of pins | 2 |
Interface type | USB, Coaxial |
Number of channels | 1 |
Product Dimensions | 5.2L x 4.5W Centimetres |
Material | aluminum, gold |
Manufacturer | Douk Audio |
About this item
- [Newest version in 2023. U2 now adopts USB Type-C] U2 is a USB to Toslink optical and coaxial converter, suitable for PC computer, notebook, android phone(OTG), set-top box, rock 64, raspberry pi and so on, it can bring better listening experience than PC own sound card.
- Adopting the digital interface of XMOS XU208 chip solution, with 1000MIPS random access memory much higher than U8 (500MIPS). More stable than Italian Amanero solution and supporting coaxial DSD DOP output.
- With USB Type-C input and TOSLINK optical / coaxial output (can output at the same time), supporting 44.1K-192KHz/16-24Bit sampling rate and DSD64 (DOP), better signal process brings higher sound quality and Hi-Fi listening experience.
- Using gold-plated coaxial interface, the contact internal resistance is smaller and the data transmission is more reliable. U2 is powered by USB, very convenient to carry and use anytime and anywhere.
- Mini size with exquisite design, black and red aluminum cases look cuter and fashionable, very suitable for desktop digital players use.
Product details
- Product Dimensions : 5.2 x 4.5 x 0.1 cm; 160 g
- Date First Available : March 29 2020
- Manufacturer : Douk Audio
- Place of Business : ShenZhen, GuangDong 518110,CN
- ASIN : B085XPRSGM
- Item model number : JMQ230H_NEW
- 鶹 Rank: #77,129 in Electronics (See Top 100 in Electronics)
- #145 in DA Converters
- Customer Reviews:
Frequently bought together

This item: Douk Audio U2 XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD64 (Upgrade Version)
$76.99$76.99
Get it by Tuesday, Jul 1
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$10.75$10.75
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Product Description

Digital Interface
- With micro USB input and TOSLINK optical / coaxial output (can output at the same time)
- Support 44.1K-192KHz/16-24Bit sampling rate and DSD64 (DOP)
XMOS XU208
- With 1000MIPS random access memory much higher than U8 (500MIPS)
- More stable than Italian Amanero solution and supporting coaxial DSD DOP output
High Compatibility
- Suitable for PC computer, notebook, android phone(OTG), set-top box, rock 64, raspberry pi and so on
Portable Design
- Super mini size and light weight
- Powered by USB, very convenient to carry and use anytime and anywhere

Packing List
- 1*U2 USB Converter
- 1*USB Cable
- 1*CD Driver
- 1*Manual
Douk Audio U2
Parameters
- Audio input: micro USB
- Audio Output: Toslink Optical / Coaxial
- USB Chip: XMOS XU208
- Working Current: 130mA
- Dimensions: (L*W*H) 52*45*20 mm /2.05*1.77*1.38 in
- Net Weight: 50 g / 0.11 lb
System Compatibility
- 32/64 bit Win 7, Win 8 and Win 10 systems need to install driver, you can download it from the CD driver or by scanning the QR code in the manual.
- Mac OS 10.6 and above, no need for driver.
- Linux with UAC2 compliant kernel uses the system's own driver. (Has tested on Ubuntu and Daphile systems, based on INTEL X86)
- In general, default supporting Android 5.0. And Android (4.2 and above) need OTG function. Recommend operation system below 5.0 to work with dedicated players such as Haibei players.
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Customer Reviews |
3.8 out of 5 stars 274
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4.0 out of 5 stars 117
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3.8 out of 5 stars 21
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3.6 out of 5 stars 4
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Feature | Digital interface; USB to Toslink optical and coaxial converter; XMOS XU208 | Digital interface; USB to Toslink optical/coaxial/I2S converter; XMOS XU208 | DAC; Headphone Amp; USB/Coax/Opt | DAC; Headphone Amp; USB/Coax/Opt | Bluetooth power amplifier; USB/Opt/Coax; 240W |
Input | micro USB | USB (type-B) | PC-USB/Optical/Coaxial | PC-USB/Optical/Coaxial | Bluetooth 5.0/RCA/USB/Optical/Coaxial |
Output | Toslink Optical / Coaxial | Toslink Optical / Coaxial / HDMI IIS | RCA / 6.35mm headphone output | RCA / 6.35mm & 3.5mm headphone jack | Passive speakers / Active SUB |
PCM | 44.1KHz,48KHz,88.2KHz,96KHz,176.4KHz,192KHz,16-24Bit | 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 384KHz | - no data | - no data | - no data |
DSD | 2.8MHz(DSD64)-DOP | 2.8MHz(DSD64)-DOP, native / 5.6 MHz (DSD128) -DOP, native / 11.2 MHz (DSD256) , native | - no data | - no data | - no data |
Sampling Rate | no data | no data | 96K/24Bit (PC-USB) 192K/24Bit (OPT/COAX) | 24bit/192KHz (USB/Coaxial/optical) | 192K/24Bit (USB/Coaxial/optical) |
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Customer Reviews |
4.2 out of 5 stars 968
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4.1 out of 5 stars 430
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4.2 out of 5 stars 712
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4.4 out of 5 stars 611
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4.0 out of 5 stars 157
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Feature | Bluetooth preamp; Headphone amp; Vacuum tube; Tone control; APTX-HD | Bluetooth vacuum tube MM phono power amplifier | Bluetooth stereo amplifier; Tone Control; 100W | 2-CH Bluetooth amplifier; 320W high power; U-Disk; Tone control | Bluetooth hybrid vacuum tube power amplifier; USB/OPT/COAX | Retro Nixie tube clock; IPS Screen; Impressive display effect |