Douk Audio U2 Pro DDC - Poorman DDC for an affordable & clean digital signal
Jun 30, 2021 at 2:18 PM Thread Starter Post #1 of 539

Lolito

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This thread is dedicated to opinions, questions and experiences around the Douk Audio U2 Pro digital to digital converter (DDC)andre-clocker, to convert USB digital audio signal into SPDIF RCA coaxial, toslink and hdmi I2S. It is based on the well known Xmos X208 chip for USB input.

It has its own clocks, 3 of them, and with three different options of clocks when you order your unit. It has input for external power supply. It is like a cheap SIngxer SU, or a Denafrips ares, or a Singxer F1, but affordable.

Photos:
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Douk-Audio-XMOS-XU208-USB-to-Coaxial-Optical-12S-Converter-Digital-Interface-Audio-Adapter-DSD...jpg

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Douk-Audio-XMOS-XU208-USB-to-Coaxial-Optical-12S-Converter-Digital-Interface-Audio-Adapter-DSD...jpg

Douk-Audio-XMOS-XU208-USB-to-Coaxial-Optical-12S-Converter-Digital-Interface-Audio-Adapter-DSD...jpg


There is also an even smaller version, with no option for external power supply, and no internal clocks:

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Aliexpress links:
U2
U2 Mini

eBay links for better clock versions

To be continued...
 
Last edited:
Jun 30, 2021 at 2:19 PM Post #2 of 539
Reserved
 
Jul 7, 2021 at 6:55 AM Post #4 of 539
Very interesting. Still with that issue?
 
Jul 7, 2021 at 8:34 AM Post #5 of 539
Links?
 
Jul 10, 2021 at 9:37 PM Post #8 of 539
creepy guy review of the mini version:

 
Jul 11, 2021 at 5:27 AM Post #10 of 539
Last edited:
Jul 11, 2021 at 8:53 AM Post #11 of 539
Jul 11, 2021 at 3:13 PM Post #12 of 539
Older design for sale during last 4 years. The #2 and #3 are the same Leaf Audio design v1.2.
The latest one v1.3.1 has LVDS (HDMI). Your links looks line that:
Let us know if it improved anything. There are a lot of them, of all types:

https://www.ebay.com/itm/122848729167 ?_trkparms=aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=233036&meid=9fb0fbc54d2c43738e8e75a638218a61&pid=101195&rk=4&rkt=12&sd=124347783069&itm=122848729167&pmt=1&noa=0&pg=2047675&algv=SimplAMLv8MlcUltbPairwiseNativeDarwoXgbV1&_trksid=p2047675.c101195.m1851&amdata=cksum:1228487291679fb0fbc54d2c43738e8e75a638218a61|enc:AQAGAAACAPifc162Qmw811aPsA0G3BrKotK4tz2TghX77aFyACeyh8cpnna5dkuUhXqEmz4Uc6uzdzYznLS%2F7mQ4VDpLBrjgiPTvHPDjgG9NxO1Oc2ZYOzO%2FlkjEk1zRrhIaKUDnDQt%2BdvJtwiJl0k0KbayLO9qH9jTtpsl7jsFkFtaCDVUkT0EiPrKtuzEM8Xp56soTW67v0UCzl%2Bjqt8vjQTq9ySfqx10b3FVSOC3UFxngX9zOEEMvLM6pWXh6BRtborDbNuSBb7Ij%2F2WGDKtUPAcmSgSdhF%2F%2FjG4YSGenCwzsZ7Hsv%2FNvJF0xa7otjEDC64OQ6iFcKpbpEt6FPDLv%2BM63qY8JRrPEWY0OwqcoT%2B35amjckNDWx2c%2BhQTggq6jdDxyp7k%2BVYDHaErtU%2FUXuVzS%2FHegWEjPuCyRSfji6vNV3hdGyj7KFiL%2FLsgPDbYWsHTutOT5N3idQ%2BAi%2FX8VwRkLhB7WEeUTJnvUSzxam2R%2FbMG71jj3hWUKsFCUzoxd0z3SL%2FCKqaKgAiNX8eIEGnoWWcp4RdTkhSVwiS41vuPqNGmvRKiA%2BSrzFyiCm8tLyHSBVAp297o0uMBE6n7SnRTEco%2BK4cbnp5Yy%2F3T1eoSQ2aIkhc5suFhzSvt6URt14QGUlo%2F7IHTTjs943ftEemdioOQhvgg1%2BL%2FZRuzmjO0xZgLR|ampid:pL_CLK|clp:2047675

https://www.ebay.com/itm/124347783069 ?_trkparms=aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=233036&meid=75dae314f20348acbaee57365a959f12&pid=101195&rk=5&rkt=12&sd=173603132974&itm=124347783069&pmt=1&noa=0&pg=2047675&algv=SimplAMLv8MlcUltbPairwiseNativeDarwoXgbV1&_trksid=p2047675.c101195.m1851&amdata=cksum:12434778306975dae314f20348acbaee57365a959f12|enc:AQAGAAACAPoaAHbCEDV901GFd1yV%2F%2BzRXIpMXvcSSaTXZ7%2FjrCVLvfjWDfLAj3eyQNbZO2Najyo9HGEiydm8MYL59ebHYT85rv7Y5mmHOfD%2BgeVIZg2gjFCM8QQPfgFIBx697dXXz%2B2wtSjXhKAJPp1nFx1S%2FJFL5vfcONFEUwrQfiFQW4SVLC%2FpjU3OBmqPcycwUcIVduGNKbUH1A0z8lQnxlc50i4FKTnY0zdgmNAlqlS2hAb44YBa9SpGtOYpBylN%2FOb%2FYHK1oIqEk%2FIzwDiAdI%2FaL1b3sQ9hFZXV%2B57IiqjZoofexS%2BHPiJib9lOaOwGY4bW21HAtIpFGFFeSj5K9kuRJ11LOPgBFCvwuoeZLkXPIS9Owb9r6Hy5k9BuaJpDy33QjXNWnB5izuoXsuRe7gbnD%2F%2FJ0si10bCs2yWv9kL1YB%2BC9UJaooFzs%2BDH6O%2FpCBXxcWgFtRafk39726%2Bkw3Khn%2BQYgWH91KLUJHh0fY4x6MwJZ%2Bzhw37nb%2BMtujde3iAntMUVVmnyqiBgMI%2Fm18C%2BE0vQj%2FVL%2F35NXxehfp7k6TjLz8ViaFhXi4S5pX8h8BDOV%2FoxuDihU878jLidKspAKfKqRsG8HD%2B6b4RlPXux4QF4dUOrLouwde6k11HEmGkp4sUqR4klDqiQ9%2Bjc0dHooB0VaWOwt5XZOQTrpyUtFvpu|ampid:pL_CLK|clp:2047675

https://www.ebay.com/itm/173603132974 ?_trkparms=aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=20200818143230&meid=2e6fc6fd5905461eb95903116d3b46e3&pid=101224&rk=5&rkt=5&sd=164579409518&itm=173603132974&pmt=0&noa=1&pg=2047675&algv=DefaultOrganic&_trksid=p2047675.c101224.m-1

who knows if these units work well.
 
Jul 11, 2021 at 4:00 PM Post #13 of 539
Older design for sale during last 4 years. The #2 and #3 are the same Leaf Audio design v1.2.
The latest one v1.3.1 has LVDS (HDMI). Your links looks line that:
I understand, but what is the bad thing of those long links? how can i make them more pure? shorter.

What dac are you using currently or with what dac are you going to use this DDC? I´ve spent too much this year in audio, any new purchase, I gotta research about it at NASA level and then sell something to buy new crap...
 
Jul 12, 2021 at 10:12 PM Post #15 of 539
Thanks, now I understand it perfectly, links edited and working. I was wondering if one of these would improve the sound coming from my Ares2 DAC. According to a recent review, included clocks on the Ares2 not the most sophisticated.
 

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